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  • 7/25/2019 Archaeo-Astronomy and the Standing Stones of NI

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    Ulster Archaeological Societyis collaborating with JSTOR to digitize, preserve and extend access to Ulster Journal of

    Archaeology.

    http://www.jstor.org

    Ulster rchaeological Society

    The Sun, the Moon, and Megaliths: Archaeo-Astronomy and the Standing Stones of NorthernIrelandAuthor(s): Aubrey BurlSource: Ulster Journal of Archaeology, Third Series, Vol. 50 (1987), pp. 7-21Published by: Ulster Archaeological Society

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  • 7/25/2019 Archaeo-Astronomy and the Standing Stones of NI

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    Ulster Journal

    of

    Archaeology,

    Vol. 50,

    1987.

    THE SUN,

    THE

    MOON,

    AND MEGALITHS

    ARCHAEO-ASTRONOMY AND THE STANDING STONES OF NORTHERN IRELAND*

    by

    AUBREY BURL

    (2

    Woodland

    Road, Birmingham B31)

    The aims

    of this paper

    are

    threefold:

    to

    explain

    the

    celestial

    mechanics of archaeo

    astronomy;

    to

    describe

    the

    difficulties

    that

    confront

    thefieldworker;

    and

    to

    recommend

    a

    programme of research

    in

    Northern

    Ireland.

    A child

    would say:

    'The

    sun

    rises

    in

    the east'.

    An adult

    would say: 'The sun rises at the

    NE. at

    midsummer and at the SE. inmidwinter'.

    An astronomer

    would say: 'This year,

    at

    the

    latitude of

    Belfast,

    given

    an

    horizon

    height

    half

    a

    degree above

    the eyesight of the observer,

    allow

    ing for

    refraction,

    and

    with a solar declination of

    ?230-4,

    the summer solstice rising

    will occur at an

    azimuth,

    or

    compass-bearing

    fromTrue

    North,

    of

    46.%8, over 13?4 degrees

    south of NE'.

    Many

    archaeologists

    would say: 'This

    has

    nothing

    to

    do with prehistory'. Sceptical

    of the

    proliferation

    of dubious sightlines claimed

    by

    uncritical

    enthusiasts,

    dismayed

    by

    the complex

    ities

    of parallax, perturbation and

    precession,

    and

    horrified by the spectres of druids and dowsers,

    loonies and

    ley-liners

    lurking like

    nocturnal

    vampires around the moonlit megaliths,

    many

    archaeologists have

    rejected

    the

    work of

    pioneers

    such as Lockyer and

    Somerville

    and,

    more

    recently, of Hawkins, Thom and Ruggles,

    dis

    missing

    all

    the

    theories,

    good

    and bad

    alike,

    as

    worthless,

    nonsensical

    and

    irrelevant to the study

    of

    prehistory.

    They

    are

    wrong.

    The evidence

    of Newgrange and Stonehenge,

    of

    Maeshowe,

    of the recumbent stone

    circles of

    north-east

    Scotland, and the stone rows

    of the

    Western

    Isles,

    proves that such a negative

    reac

    tion isunhelpful and obstructive. The question is

    not

    whether

    Neolithic and Bronze Age communi

    ties

    in

    the

    British Isles integrated solar

    or lunar

    lines into

    some

    of their ritualmonuments

    but

    why

    they

    did

    so

    and how accurate

    their

    alignments

    were. Archaeo-astronomy

    is a part, no

    more than

    a

    part but an

    important one, of prehistoric

    studies.

    This

    cannot

    be

    stressed

    toomuch. The writer does

    not know

    of a single prehistoric monument

    in the

    British Isles

    that

    was

    designed

    exclusively,

    or even

    primarily,

    as an observatory.

    But he knows

    of

    many that

    contain

    sightlines

    whose existence

    is

    certain but

    whose purpose is

    obscure. Archaeo

    astronomy may reveal the significance of these

    lines. With care

    it

    may provide

    a

    chronology

    for

    otherwise undatable

    structures,

    it

    may reveal

    cul

    tural links between

    distant regions,

    and, above

    all,

    itmay offer insights into

    the thinking of societies

    who thought it

    necessary to

    erect

    stone circles,

    henges and

    rows

    of

    standing

    stones.

    This seems so moderate

    a

    standpoint

    that

    it

    is

    saddening to

    recall how some archaeologists

    have

    responded

    to any suggestion

    that

    ancient

    people

    were aware of the

    sun and the moon.

    'It is fantastic

    to

    imagine

    that

    the

    ill-clad

    inhabitants

    of these

    boreal

    isles

    . . .

    should

    shiver night-long

    in

    rain

    and gale . . . to note eclipses and planetary

    movements

    in

    our

    oft-veiled

    skies'

    (Childe 1930,

    164).

    'I

    have

    no

    faith whatsoever

    in correlations

    between the orientation

    of Rude

    Stone

    Monu

    ments

    of

    any

    kind

    and

    astronomical

    phenomena'

    (Macalister

    1928,

    109).

    'Theorists

    .

    . .

    building

    up

    verbose fatuities,

    concerning

    sunrise

    on

    Midsum

    mer's Day,

    and

    so

    forth'

    (Keiller

    1934, 11-12).

    'Orientation

    (except

    for calendrical use)

    has

    no

    sounder

    basis

    in

    objective

    fact

    or

    logic

    than had

    the

    Druidical,

    Dracontian,

    Phallic and

    other

    obsolete

    imaginings' (Engleheart

    1930,

    46).

    A 1960 calendar used

    to

    hang in the Conyng

    ham Arms Hotel, Slane. It contained a descrip

    tion of the Newgrange passage-grave saying

    that

    'the

    rays

    of the

    rising

    sun

    at certain

    times of the

    year penetrate

    the

    opening

    and

    rest on a

    remark

    able

    triple

    spiral carving

    in the central chamber'.

    Archaeological

    derision

    followed. The

    account

    was

    'an example

    of

    the

    jumble

    of

    nonsense

    and

    wishful

    thinking indulged

    in by those

    who

    prefer

    the

    pleasures

    of the irrational and the joys

    of

    unreason to

    the

    hard

    thinking

    that archaeology

    demands'

    (Daniel

    &

    O'Riordain

    1964,

    19).

    Ironi

    cally,

    not many

    years

    later another

    archaeologist

    did discover that 'atmidwinter

    sunrise the tomb

    was dramatically illuminated and various details

    *

    This

    paper

    is the

    outcome

    of the Oliver

    Davies Lecture

    given by

    the writer

    in

    March,

    1986.

    7

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  • 7/25/2019 Archaeo-Astronomy and the Standing Stones of NI

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    of the side and end recesses could

    be clearly seen'

    (O'Kelly

    1982,

    124).

    This

    example

    of

    amegalithic

    tomb

    architecturally designed

    to admit the

    rays

    of

    the rising

    sun into the

    chamber

    for

    a

    few

    chosen

    days

    of the

    year shows

    that

    prehistoric people

    were concerned with celestial events. Similar

    deliberate solar and lunarorientations were incor

    porated

    in several Breton

    passage-graves

    such as

    Dissignac and Gavr'inis (Burl 1985,

    98,

    110-11).

    Crude

    alignments

    towards

    the

    southern

    moon

    have been detected

    in

    the stone rows

    of

    Mull

    and

    Argyll

    (Ruggles

    1984, 275-8,

    303-6). Why

    people

    should have raised those desolate lines

    is

    one question. How their handiwork can be

    proved

    today

    is

    another.

    Let us

    suppose

    that in Northern

    Ireland,

    modern seekers

    of

    astronomical truth wish

    to

    devise

    a

    programme of research. They will

    require

    technological understanding;

    a

    strict methodo

    logywith an awareness of the limitations of their

    material;

    and

    they

    will need sites for

    analysis.

    All

    this

    can

    be

    provided.

    TECHNOLOGY

    At

    any site,

    to

    discover

    where

    the

    sun ormoon

    will

    rise or

    set

    at their northern

    or

    southern extremes,

    an

    enquirer must

    know three

    things:

    the

    azimuth,

    the

    latitude, and

    the horizon

    height.

    From

    these

    the necessary solar

    and

    lunar declinations can be

    calculated.

    Azimuth

    Azimuth is the

    bearing between two

    objects,

    first

    the

    backsight

    where the observer

    stands,

    and the

    foresight

    towards which he

    looks.

    In

    archaeo

    astronomy

    the azimuth can

    only

    be

    properly

    determined

    if the

    backsight

    and

    foresight are

    both

    artificial

    and

    archaeologically

    associated. As

    instances,

    the backsight could be the centre

    of a

    stone circle, or a standing stone or the passage

    of

    a

    chambered

    tomb.

    The foresight should be a

    man

    constructed

    object

    such

    as

    an

    outlying

    stone or the

    far end of amegalithic row. It is not acceptable to

    choose a notch on the

    skyline.

    It is possible that

    prehistoric people

    did

    use

    such

    an

    alignment.

    It is

    impossible

    for us to prove it because the

    same

    skyline may contain a bewilderment of

    notches

    and

    peaks

    in line with

    various solar, lunar

    and

    stellar events.

    Only

    genuine human structures

    should

    be

    accepted

    such as

    the

    rows at

    Beaghmore

    that

    run NE.-SW.

    (or

    SW.-NE ).

    Latitude

    It is not

    widely appreciated

    that latitude has a

    considerable effect on celestial positions. At Bea

    ghmore, a stone circle complex in Co. Tyrone on

    latitude

    54?42',

    the midsummer sun in 3000 BC,

    with a declination of

    240.027,

    would have risen

    over a nearby hill around

    450.3

    from True North.

    If, however, the ring had been inCornwall nearly

    300 miles

    to

    the

    south,

    latitude 50030',

    the sun

    would have appeared at 500-3, and ifBeaghmore

    had been in

    Caithness,

    latitude 58030', the same

    distance to the north, the midsummer solstice

    would have been

    at

    390.9.

    To

    talk

    of

    midsummer

    sunrise

    occurring

    at the

    NE. or

    450

    isno

    more than

    a convenient

    generalisation.

    Altitude

    The

    height

    of the horizon is also

    important.

    At

    Beaghmore

    it has been

    assumed

    that the north

    eastern skylinewas formed by a low ridge 3/4mile

    away

    and

    about

    34ft.

    (10-4m.)

    higher

    than the

    area

    in

    which

    the

    stone

    circles stand.

    If, however,

    a hill had been

    there,

    500 ft

    (152m.)

    above

    the

    ring,

    themidsummer sunwould have

    been

    sighted

    not

    at

    450.3,

    but

    at

    570-6,

    over

    120

    farther

    to

    the

    south and 250

    yards

    from

    the

    original rising point.

    Latitude is simple to

    determine

    from any good

    0.

    S.

    map.

    Horizon altitude

    can

    also

    be

    estimated,

    albeit only

    approximately,

    from the same

    source,

    or much more

    precisely

    with

    a theodolite in the

    field, although

    even

    here modern

    trees

    may

    obscure

    what the

    megalith

    builders

    saw.

    Archaeo-astronomers have been only too well

    aware of how

    dangerously misleading

    it can be

    to

    assume that

    the altitude

    of

    the

    modern

    skyline

    is

    identical

    to

    that

    of

    prehistoric

    times.

    'Changes

    in

    ground

    level

    and

    vegetation

    . .

    .

    may

    alter

    the

    height

    of a

    horizon

    by up

    to

    about

    2m.

    When the

    horizon

    is nearer than

    lkm.

    this

    will

    result

    in

    the

    declination being

    altered

    by

    at

    least 00-1'

    (Ruggles

    1984,

    65).

    In

    consequence,

    to avoid

    this

    distortion

    fieldworkers,

    such

    as

    Ruggles

    and

    Thom

    have

    deliberately

    excluded

    any sightline

    to

    a

    horizon

    nearer than 2/3

    miles

    (lkm.).

    Yet,

    as

    will be

    seen,

    even this sensibly cautious procedure can create

    difficulties.

    Once the altitude has

    been

    established

    it

    must

    be

    refined

    to

    take into

    account

    the effects

    of

    refraction for

    the

    sun

    and

    moon,

    and of

    parallax

    for

    the

    moon

    which is

    some

    four hundred

    times

    closer

    to

    Earth than the

    sun.

    Parallax

    is

    the

    appar

    ent

    displacement

    caused

    by looking

    at a

    nearby

    object

    first with one

    eye

    closed

    and

    then

    with

    the

    other.

    The

    sun,

    93

    million

    miles

    away,

    has a

    parallax

    of

    less

    than 9 seconds whereas the

    moon,

    so

    much

    closer,

    has

    a

    parallax

    of almost

    a

    degree.

    Formulae for

    refraction

    and

    parallax

    can

    be found

    in Thom A. (1967, 26, 118).

    8

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    Declination

    Finally, there is

    the

    problem of

    declination which

    is

    the angular

    distance of a celestial

    body north or

    south of the celestial

    equator. The

    equator itself

    will

    have a

    declination of 0? and the

    North Celes

    tialPole, at

    right angles

    to

    it,

    has a

    declination

    of

    +90?. Declination

    in the

    sky

    can

    be

    deemed

    the

    equivalent

    of latitude on

    Earth,

    and the

    farther

    north from

    the equator

    the larger the

    declination

    will be. In a

    sense,

    a line

    directly

    east and west

    of

    an

    archaeological

    site is

    the celestial

    equivalent

    of

    the

    equator. When the sun andmoon rise and set

    on

    that line,

    at the Spring andAutumn

    equinoxes,

    they

    have a

    declination

    of

    0?.

    When

    they

    are

    north

    of the line

    they

    will

    have a

    plus

    declination

    and

    when they

    rise

    or set to its south their declination

    will be a minus

    one.

    Declination

    can be calculated

    by

    using

    the

    formula:

    Sin dec.

    =

    (sin

    Lat.

    x

    Sin

    Hor.)

    +

    (Cos

    Lat.

    x

    CosHor. x Cos

    Az.)

    A

    rapid conversion table for the

    sun and moon's

    declinations in all latitudes of

    theBritish Isles

    can

    be found

    in Penny

    & Wood

    (1973, 66-74).

    Targets

    So

    far this has been

    a technical

    exercise in survey

    ing. Itmay have

    established that the

    long row of

    low stones extending north-eastwards from

    Circles C and D at

    Beaghmore had

    an azimuth of

    37-6

    looking

    towards

    a

    skyline

    about half a

    degree

    above

    it

    (Thom A.S. 1980,

    17) but this is

    meaningless unless the row

    pointed

    towards some

    celestial

    target

    such as

    the

    sun, moon, stars or

    planets.

    Unlike peoples in

    other parts of

    the

    world,

    however,

    prehistoric

    communities in these

    islands seem to have

    ignored stellar

    and planetary

    movements.

    In

    some

    ways

    this

    is a

    pity. The sun's and

    moon's

    extreme

    risings

    and

    settings cannot

    easily

    be used to

    date amonument

    because they

    changed

    littlemore than a quarter of adegree in a thousand

    years. Stars

    shifted much

    more rapidly along the

    skyline. In contrast to the

    sun

    andmoon the

    bright

    star, Pollux

    (/3Geminorum),

    moved

    nearly

    120

    along

    the

    Beaghmore

    horizon in the thousand

    years

    between 2500 and

    1500BC

    (Hawkins, 1966,

    27).

    If

    itwere known

    that the row

    of stones

    leading

    from

    Circle E had been

    directed towards its rising

    then

    one

    could

    date

    that row

    very precisely.

    Its

    azimuth of

    390

    produced

    a

    declination

    of

    +

    270

    28,

    thedeclination of

    Pollux within a few

    years of 1715

    BC. Interestingly, when

    it is

    de-calibrated this

    becomes

    the approximate equivalent of 1400

    bc,

    fallingneatly between Pilcher's (1969, 89) termini

    ante- and post quem

    of 1535

    ?

    and 775

    ?

    55 bc for

    the Beaghmore complex.

    Regrettably,

    one cannot assume that any such

    alignment was intended. There are at least 20

    bright stars in the northern hemisphere with visual

    magnitudes between the -1-43 of Sirius (a Canis

    Majoris) and + 131 of /3Crucis (Hawkins 1966,

    19-42). Between 4000 and 1350BC, the

    period

    of

    megalithic construction in these islands, their

    movements

    covered the greater part of the hori

    zon so that

    one can find

    a

    stellar orientation in

    almost anymonument (Burl

    1976,

    51-2). Without

    external confirmation, not yet forthcoming, of

    star

    sightings such as a regional group of rows or

    circles

    consistently aligned

    on

    th-atpart of the

    skyline

    where

    only Capella (a Aurigae) or some

    other star rose or set alignments to the starsmust

    be left an

    unresolved question. With the sun or

    moon

    the evidence ismuch less

    equivocal.

    The Sun

    The sun, with a

    declination

    of

    +24?112

    in 4000

    BC,

    is relatively constant.

    Two thousand

    years

    later its declination

    had

    reduced

    only

    to

    ?230.928.

    Rising

    at the NE. and

    setting

    at

    the

    NW.

    at

    midsummer,

    giving

    17 hours of

    daylight

    in central

    Britain,

    the sun

    moved

    down the horizon

    day

    by

    day for

    the next six

    months, rising

    at

    the

    east and

    setting

    at

    the west at

    the

    Spring

    and

    Autumn

    equinoxes

    with

    a

    declination

    of

    00.

    Continuing

    southwards

    it

    eventually

    reached its southernmost

    extremes, declination -24'-112, of a SE. rising

    and SW. setting

    at

    midwinter

    when

    daylight

    lasted

    less

    than seven hours.

    Its northern and

    southern

    extremes

    are known

    as

    solstices

    or

    'Standstills'

    because at June

    21 and December

    21

    it

    lingers

    at

    the same

    place

    for

    several

    days together

    before

    starting

    on its

    long

    return

    to

    the other solstice.

    The

    Moon

    Whereas

    the sun

    is

    consistent with

    only

    two

    extreme declinations

    the

    moon

    is fickle

    as

    its four

    declinations of

    +28?32,

    +18?-00, -30?-12,

    and

    -19?-84 show. Instead of a solar pendulum

    trustworthily swinging

    steadily

    backwards and

    forwards

    from

    NE. to

    SE.

    to

    NE,

    almost

    unchang

    ing through

    the

    millennia,

    themotion of the

    moon

    is more like

    a

    heavenly

    concertina

    with both its

    northern and southern

    extremes

    expanding

    and

    contracting

    over

    a

    period

    of

    18-61

    years.

    When

    this lunar

    concertina

    was

    fully

    extended

    at its

    Major

    N. and

    S.

    positions

    the

    moon,

    in

    the

    latitude

    of

    Beaghmore,

    would be

    rising

    at the

    NNE.,

    360.8,

    and

    setting

    at

    the

    NNW., 323?

    2.

    This would be at

    midwinter

    when it

    reflected

    the

    light

    of

    the sun in the

    south. At midsummer

    it

    would be

    rising

    and

    setting

    at the

    SSE.,

    1520-7

    and

    9

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    SSW.,

    2270-3. The distance between its northern

    and southern extremes

    was

    therefore about 116?.

    The following year

    the ends of the concertina were

    not pulled so

    far

    apart

    and

    its arc

    narrowed by

    some

    5?.

    The contraction continued for another

    eight years

    until,

    at its

    Minor

    positions,

    it

    was

    rising in the north at 59? 0 and in the south at

    127? 4,

    an arc no more

    than

    67?-4

    wide. Then it

    began widening

    again,

    a

    cycle repeated

    every

    18-61 years with hardly any

    variation

    over

    the

    millennia.

    Observations

    on the

    moon,

    with its

    constantly

    changing

    positions,

    demanded patience.

    It was

    more elusive

    than the sun

    and

    yet,

    paradoxically,

    it

    seems

    that it

    was the moon that

    was

    often

    the

    preferred target

    in the British Isles.

    More

    detailed

    explanations

    of these solar and

    lunar cycles

    can

    be

    found

    inThom

    (1967,

    14-26),

    Heggie (1981,

    86-98),

    and,

    for the less

    numerate,

    Burl (1983, 16-20).

    An

    understanding

    of what the sun andmoon

    do

    will also

    save the

    researcher

    from the

    misfortune

    of a

    group

    of

    investigators

    who,

    in

    1935,

    went to

    Newgrange

    to test the legend

    that the

    passage

    grave

    was

    aligned

    on

    the

    solstitial sunrise.

    They

    camped

    there for three

    nights

    but dawn after dawn

    clouds

    obscured

    the

    horizon

    and

    eventually they

    left in

    frustration.

    They

    would have been

    frus

    trated

    anyway.

    They

    had

    gone

    there at

    midsum

    mer,

    all right

    for

    Stonehenge

    but not for

    Newgrange whose

    entrance faces south-east

    and

    the midwinter

    sunrise, 80?

    and six months later

    than their visit (Brennan 1983, 34).

    METHODOLOGY

    It

    is not

    enough

    to

    know

    about

    these astronomical

    matters

    and

    to be

    able

    to use a theodolite.

    There

    are

    traps. It is possible

    to be careless and it is

    possible

    to

    be over-precise. It is possible to come

    upon

    a

    solar

    or

    lunar

    alignment that

    was never

    created by prehistoric

    people and which exists

    entirely by chance.

    It is

    possible to discover

    accur

    ate

    alignments

    inmonuments

    and follies

    erected

    only a

    few

    years ago.

    It is possible to miss a

    sightline in a row of standing stones running

    NE.-SW. by looking

    along it only to the SW.

    instead

    of

    looking

    in both directions. As a gloss, it

    is

    possible

    to come upon a sightline in a row or

    circle

    and overlook the three other

    alignments

    that

    survive in

    the

    same structure.

    In

    archaeo-astronomy

    the golden rule is to

    avoid

    drawing conclusions

    from single sites. As in

    any scientific test the results should be repeatable

    and for this

    groups are needed. One site

    alone

    may

    contain a

    solar alignment by accident.

    Two

    similar

    sites

    with similar

    alignments may

    be

    coincidental, three become interesting and ten

    or

    more with similar orientations and similar decli

    nations make it possible that this iswhat

    prehisto

    ric people intended. At that

    stage

    the

    investigator

    may go on to consider

    why

    there

    were

    such

    align

    ments. To do so

    after having

    looked at

    only

    one

    site

    is

    a

    very

    questionable

    procedure.

    A second

    point that

    is

    becoming

    clearer

    is that

    when alignments are discovered they are rarely

    precise.

    Some sites are accurate within a few

    seconds of arc but this was

    probably

    fortuitous

    because similar sites are accurate

    only

    within a

    degree

    or

    two, sufficient

    if

    the alignments were

    symbolic but quite inadequate

    for

    analytical

    observations

    of

    themoon's minute

    perturbations.

    To

    accept

    that

    alignments

    were

    general

    rather

    than specific

    will

    preserve

    the archaeo

    astronomer from rejecting

    a

    host

    of

    clumsy

    sites

    and

    accepting only

    the

    minority

    of

    high-precision

    lines

    thereby giving

    the

    impression

    that the

    pre

    historic

    British

    Isles were inhabited

    by

    celestial

    researchers setting up megalithic observatories to

    further their

    understanding

    of

    the

    heavens.

    They

    were

    not.

    Such

    researchers never existed. To the

    contrary,

    many ritual

    monuments

    were

    directed

    rather

    haphazardly

    towards the sun or moon for

    reasonswhich are as

    yet

    obscure butwhich

    suggest

    links

    with

    funerary practices

    and

    death.

    It

    is

    necessary

    to

    exercise great

    care

    when

    look

    ing for alignments.

    Backsights

    cannot

    be

    arbitra

    rily

    chosen but should

    have

    some

    exceptional

    quality

    such

    as

    being

    the

    tallest

    or

    most massive

    stone,

    or

    the entrance

    to

    a circle

    -

    which

    will

    not

    serve as a

    foresight

    because of

    its

    width

    -

    the

    centre of a ring if it can be determined closely, a

    cupmarked stone,

    or

    the

    end

    of

    a

    row.

    Such

    features would

    be

    acceptable

    as

    putative

    back

    sights.

    So would

    the

    chamber of a

    megalithic

    tomb.

    Foresights

    should

    be

    both

    narrow

    and

    distant,

    preferably

    at least

    50

    ft

    (15m.) away. Looking

    from the centre of

    an

    average circle

    a stone

    on its

    circumference

    will

    be

    no

    more than

    33 ft

    (1im.)

    from

    the

    observer and

    even if that stone

    were no

    more

    than 2

    ft

    (0 6m.)

    in

    breadth

    it

    would

    offer

    a

    range

    of

    vision

    nearly 31/2' wide.

    An outlying

    pillar, edge on,

    a

    mere

    1

    ft

    (0-3m.)

    across, and

    50

    ft from the ringwould reduce this arc to barely

    more than

    1?.Tall,

    slender

    slabs, ideally

    of

    flag

    stone,

    make

    excellent foresights

    as do

    elegantly

    straight

    rowswhose stones rise in

    height

    towards a

    prominent

    terminal

    pillar

    with its broad

    faces

    set

    along

    the

    axis

    of

    the

    line.

    The most

    famous

    of

    all

    foresights,

    the

    Heel

    Stone

    at

    Stonehenge,

    is almost

    an

    archaeo

    astronomical

    nightmare.

    Of

    coarse,

    unshaped

    sar

    sen,

    leaning

    16

    ft

    (Sm.)

    high

    and 9 ft

    (2-7m.)

    wide

    of

    grotesque

    sandstone,

    its

    only recommendations

    are its

    tapering peak

    and

    the

    256

    ft

    (78m.) that

    separate

    it from the centre of

    the circle.

    It

    does not

    even stand in line with its presumed target, the

    10

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    midsummer sunrise. In 2200 BC, when the blue

    stones were being erected at Stonehenge, the

    Heel

    Stone would have actedmore accurately as a

    marker for the moon midway between its

    northern

    major

    and minor

    risings (Wood 1978,

    163).

    Its acceptance as a solar foresight serves as a

    warning of the ease with which it is possible to

    misinterpret an alignment.

    Uncritically taking

    two associated features of a

    stone circle and claiming an alignment between

    them can be misleading. The megalithic ring on

    Castle Mahon mountain, excavated in 1953

    (Collins 1956)

    had a fire-reddened central pit to

    whose NW. there was a tiny cist containing the

    cremated remains

    of a

    child.

    An

    alignment from

    the cist through the pit looks

    south-eastwards,

    declination -23? 4, apparently towards midwin

    ter sunrise. This could be interpreted as a symbo

    lic sightline seen from the sacrificed body of the

    child, through

    the flames of the

    pyre

    towards the

    winter sun and the land of the dead.

    It

    was not. The pit

    was

    6

    ft

    (1-8m.)

    wide and

    only 7 ft (2-1m.) from the cist. An observer would

    have been

    presented

    with an arc of vision between

    1100

    and

    155?,

    anywhere from sunrise

    in

    late

    October and mid-February down to a southerly

    point where neither

    the

    sun

    nor the

    moon ever

    rose.

    The

    magnificent

    stone

    circle of

    Ballynoe

    inCo.

    Down, appears

    more

    promising

    for not

    only

    is it a

    great ring

    some

    100 ft

    (30m.)

    in diameter but it has

    a

    clearly

    defined

    western

    entrance,

    a

    tallest

    stone

    and

    no fewer

    than

    five or six

    supposed

    outliers.

    Yet

    despite

    this

    rich

    potential

    the

    ring

    offers little

    save a

    reminder

    that the

    surest

    way

    of

    confirming

    an

    alignment

    is to

    find

    similar

    monuments

    with

    similar

    orientations.

    At

    Ballynoe

    not one

    of the

    'outliers' has any

    astronomical

    significance

    and it

    may

    be that

    they

    are no

    more

    than

    stones

    that

    have been

    dragged

    from the

    circle which has

    several gaps.

    What

    does exist at

    Ballynoe

    are two

    orientations to

    cardinal

    points,

    one to

    the north

    through

    the tallest stone

    and another

    to

    the

    west

    through

    the northernmost

    pair

    of

    portal-stones

    at

    the

    entrance.

    Such alignments

    link

    Bally

    noe

    with the

    group

    of

    large

    Cumbrian

    stone

    circles

    with which it shares

    many

    architectural

    traits and

    in

    which

    rough alignments

    to

    north, south,

    east

    or

    west are

    commonplace (Burl 1988). By

    them

    selves the two sightlines

    at

    Ballynoe

    are unim

    pressive

    for

    they

    are

    not

    by any

    means

    precise.

    But placing Ballynoe

    with

    Lake

    District

    rings

    such

    as

    Swinside,

    Brats Hill

    and

    Castlerigg

    shows that

    lines to cardinal points

    are a characteristic

    of

    all

    of

    them. It also reveals the danger of studying any

    site in isolation for by themselves the

    inexact lines

    at

    Ballynoe

    would be astronomically

    unac

    ceptable.

    At

    Beaghmore,

    Dr

    A.

    S.

    Thom examined

    ten

    NE.-SW.

    lines

    of

    standing

    stones

    tangential

    to or

    leading

    between

    pairs of circles.

    Only

    two

    pro

    duced

    interesting

    declinations,

    one towards the

    midsummer

    sunrise

    along the

    truncated 3-Stone

    row of

    Circles

    F,

    G;

    and

    a

    second

    towards the

    same

    target

    along

    the

    line of tall stones between

    Circles A, B. The other eight declinations offered

    nothing

    astronomical.

    'In general

    the fairly

    short

    rows

    do not

    point

    to

    any

    obvious markers or

    foresights

    on the

    horizon. As for the

    remaining

    rows the

    average

    declination

    indicated is too low

    by about

    one lunar

    diameter' (Thom 1980, 19).

    This was so

    puzzling

    that

    Thom

    was constrained

    to ask:

    'Were the

    erectors

    beginners

    and

    learning

    about the

    moon's

    movement or were the rows

    put

    there

    for other

    purposes?'

    (ibid,

    18). Itmay

    be,

    however,

    that

    the

    wrong sightlines

    had been

    examined.

    Thom surveyed only to the NE. because the

    SW.

    skyline

    was so

    close

    that,

    as

    Ruggles

    had

    noted,

    any change

    in

    vegetation

    since

    prehistoric

    timeswould have

    had

    a considerable effect

    upon

    the calculated

    declination. Yet

    if

    one

    end

    of

    the

    Beaghmore

    rows was

    more important than the

    other it was that at the

    SW.

    because

    every

    one of

    the rows had

    a

    cairn

    there,

    some in between the

    circles, one,

    at

    Circle

    E,

    actually incorporated

    into the

    ring.

    Excavation recovered human bone

    fragments,

    cremated

    bone

    and

    a

    skull from

    the

    cairns

    (May 1953).

    One of the

    many

    difficulties

    facing

    the archaeo

    astronomer

    is to know

    how much the

    landscape

    has

    changed

    since

    the

    Neolithic

    and

    Bronze

    Ages.

    Today

    the

    rings

    at

    Beaghmore

    lie

    on

    a

    drearily

    open

    moor

    of

    peat

    and

    thin

    grass

    but

    previously

    the

    countryside

    was

    very different as the name

    Beaghmore,

    'the

    great place

    of birches', suggests.

    When the stones were

    erected

    therewas heath but

    there were also

    spreads of

    birch and hazel and

    oak, a stem

    of which

    was discovered in one of

    the

    cairns. There were 'a

    number of small

    agricultural

    phases

    but no

    major reduction in the tree cover',

    and

    pollen

    analysis

    indicated that

    quite dense

    patches

    of forest

    survived

    around the

    rings (Pil

    cher

    1969, 89).

    With

    the

    probability

    of

    only small

    communities

    in

    the

    locality

    it

    may

    be

    assumed that

    therewere

    many

    trees

    close to the

    circles, chang

    ing

    the

    horizon

    from

    the bland low distances of

    today

    into

    high

    and

    dark skylines in many

    directions.

    With a

    steep

    south-western horizon

    behind the

    cairns it is feasible

    that the

    Beaghmore rows,

    astronomically unaligned

    to

    the

    NE., were aimed

    towards the

    mid-winter sunset at the

    SW., linking

    death

    with

    the

    setting sun, a conjunction known in

    other rows

    joined

    to

    burial

    cairns such as Balloch

    roy

    in

    Argyll

    (Burl

    1983,

    7-10).

    At a latitude of

    540-7and an assumed horizon altitude of 30 those

    rows

    that

    point

    most

    directly

    towards the cairns at

    11

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    PI.

    I. Beltany Tops stone circle,

    Co.

    Donegal. Outlier

    and stone circle from the ESE.

    Circles A,B; C,D; E; and F,G have declinations

    of

    -23?*1, -240*5,

    -23?*9 and -220*5

    respectively, all, except the

    last, close to

    the

    sun's

    declination of -230-9. As will

    be seen, the excep

    tion,

    -22o.5,

    may also have

    been of solstitial

    significance.

    There are rows similar to

    those at Beaghmore

    in

    Counties

    Fermanagh,

    Londonderry and Tyrone

    and it is

    noticeable that

    amongst them

    also

    the

    favoured direction

    concentrates

    around

    NE.-SW.

    At

    several of them, moreover,

    Drumskinny

    in

    Co.

    Fermanagh and Castledamph inCo. Tyrone being

    two examples, there are

    cairns at the southern

    end. It is a combination these

    Irish rows

    have in

    common

    with others on Dartmoor in

    Devon

    where

    single rows often lead up a slope to

    a cairn

    and where

    double

    rows

    climb towards

    cairn

    circles,

    the

    majority

    of

    the rows running

    NNE.

    SSW.

    or

    NE.-SW.

    (Emmett

    1979, 95,

    97-8).

    This

    being so it

    would be worth re-examining the cairn

    joined

    lines at

    Beaghmore and elsewhere

    in

    Ulster

    to see if

    they really do have solar alignments

    built

    into them.

    A decision to survey only one of the two direc

    tions

    possessed by a row because of an

    adjacent

    skyline at the

    other may not be advisable. Rug

    gles,

    whose

    recent work inwestern Scotland has

    yielded some unexpected

    but valuable results,

    concluded

    that

    'the exclusion

    from consideration

    of

    horizons

    closer than

    1km. leaves us lacking vital

    data which

    bears upon the

    lunar hypothesis' (Rug

    gles 1984,

    304).

    At this

    pioneering stage

    of

    archaeo-astronomical

    fieldwork

    little can

    be taken

    for

    granted

    even

    by

    the

    best of

    surveyors.

    Perhaps

    the

    most

    intriguing 'astronomical'

    site

    in the north of Ireland is the stone circle of Beltany

    Tops

    in

    Co.

    Donegal.

    Standing

    on a low

    hill not

    far from

    Raphoe

    with its Druid

    Bookshop,

    the

    ring is

    145

    ft

    (44m.)

    in

    diameter

    with 64 stones

    still

    standing

    on

    its crowded

    circumference.

    Here

    there

    is a 9 ft

    (2-7m.)

    high

    stone at

    the

    SW.,

    an

    abundantly cupmarked stone at

    the

    NE.

    and

    a

    61/4

    ft (1-9m.) high outlier 67 ft (20.4m.) to the SE.

    outside the circle. Somerville

    (1923,

    212-14) sug

    gested

    that several solar alignments existed at the

    site.

    Looking from

    a tall stone at the NW.,

    'conspic

    uously greater and

    higher

    than

    its

    neighbours',

    the outlier

    212

    ft (64.6m.)

    away

    stands

    edge

    on in

    line with the midwinter sunrise over Betsy Bell

    mountain 28

    miles

    away.

    Another

    line

    across

    the

    circle looks towards the prominent hill,

    Croaghan,

    7

    miles

    to

    the SE.,

    above which

    the sun

    rose in early November at the Celtic festival of

    Samain.

    A third

    orientation,

    towards

    Argery

    hill

    top

    4

    miles

    away,

    records the

    equinoctial

    sunrises.

    Three solar alignments

    built into a ring might

    seem convincing proof

    that they

    were

    intended.

    There

    are,

    however,

    reasons

    for doubt.

    Somer

    ville's hypothesis implies

    that the circle-builders

    deliberately searched for

    a

    location where

    three

    notable landmarks

    stood in line with the

    equinoc

    tial, Samain

    and midwinter sunrises, something

    difficult

    to

    achieve

    even

    today

    with the

    aid

    of

    detailed

    maps.

    Nor can hills

    by

    themselves be

    accepted as foresights which should be artificial.

    Only

    the outlier at

    Beltany

    conforms

    to

    this

    rule

    and the

    evidence

    for its solstitial

    sightline

    is sus

    pect.

    The

    line does

    not

    pass through

    the

    centre

    of

    the ring

    but some

    11

    ft

    (3-4m.)

    to its north

    although

    there was

    nothing

    in

    the

    circle

    to

    obscure

    the view. It

    would have been

    easy

    to set

    up

    the tall

    backsight

    and

    outlying foresight

    6

    ft

    (1-8m.)

    far

    ther

    to their west where the

    alignment

    would

    have

    crossed

    the middle

    of

    the circle and still

    coincided

    'with

    a

    hill-summit seen

    against

    the sky, at some

    little

    distance. The azimuth of the line is

    (exactly)

    that of sunrise on the day of theWinter Solstice'.

    Outlying

    stones to stone

    circles cannot

    be

    pre

    sumed

    to

    be

    foresights. Despite

    the existence

    of

    the Heel Stone

    at

    Stonehenge

    and the

    pillar

    of

    Long Meg

    inCumbria

    aligned

    on

    mid-winter

    sun

    set,

    there are

    many

    other outliers that have

    no

    astronomical significance

    (Burl

    1976, 77).

    Even

    12

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    the prostrate stone

    at the Athgreany

    megalithic

    ring

    in

    Co.

    Wicklow,

    supposedly

    in line with the

    midsummer

    sunrise

    as

    Athgreany

    (achadh-grian,

    'The

    field of the sun')

    implies, may

    be no more

    than

    a

    glacial

    erratic lying

    near the

    ring.

    It

    is,

    in

    any case, too low to act as a foresight with Slieve

    corragh

    mountain looming

    behind it.

    The best alignment

    at Beltany Tops

    is that from

    the

    great pillar

    at

    the

    SW. to the cupmarked

    stone

    at

    the

    NE.

    Although

    4

    ft (1-2m.)

    wide this stone

    has

    a pointed

    top that defines

    the sightline

    neatly,

    leading

    the eye

    to the 'small but

    conspicuous

    hill-summit'

    of

    Tullyrap

    5

    miles

    away

    where the

    sun

    rose

    in early

    May.

    This was

    the

    time

    of

    year

    when the pagan festival

    of Beltane

    was celebra

    ted,

    thememory

    of

    which

    seems to

    be preserved

    in

    the

    name, Beltany.

    Cupmarks in megalithic rings do seem to

    occupy astronomical

    positions. Analysis

    of

    the

    eight

    cupmarked

    recumbent

    stone

    circles

    in north

    eastern Scotland:

    Arnhill, Balquhain,

    Braehead,

    Cothiemuir

    Wood,

    Loanend,

    Loanhead

    of

    Daviot,

    Rothiemay

    and

    Sunhoney

    showed that

    in

    every

    case

    the

    eleven

    decorated

    stones stood

    in

    line with a solar

    or

    lunar

    extreme,

    one aligned

    on

    midwinter sunrise,

    three

    on

    the

    minor

    southern

    moonset,

    two on

    the

    major

    southern

    moonrise

    and no

    fewer

    than five on the

    major

    southern

    moonset

    (Ruggles

    &

    Burl

    1985,

    S54-S57).

    Statis

    tically this is

    too complete a

    correlation to

    be

    coincidental and

    itmust be

    accepted that at

    least

    in those Scottish circles the cupmarks were astro

    nomically

    placed.

    The

    same

    could

    be

    true at Belt

    any

    Tops

    where

    the

    cupmarked

    alignment

    had a

    declination of

    +

    160.6

    very

    close to sunrise

    in early

    May

    (Thom 1967, 110; Burl

    1983,

    34).

    The

    problem at

    Beltany Tops is

    that

    the

    align

    ments

    are

    good

    but they

    cannot be

    tested

    against

    similar

    sites because

    none exists.

    Beltany

    is

    a

    unique

    circle. It

    stands between

    the heavily

    kerbed

    'passage-graves'

    of

    Carrowmore, Co.

    Sligo, to the

    west, from

    which

    it

    may

    have

    derived,

    and the

    Ulster

    rings

    of

    semi-contiguous stones

    to

    the east for which itmay have provided a proto

    type.

    In neither

    complex are cupmarks

    known

    except at

    atypical

    rings such

    as

    Millin

    Bay,

    Co.

    Down;

    Kiltierney, Co. Fermanagh; and at

    Castle

    damph,

    Co. Tyrone,

    where

    an

    intrusive cist may

    have had

    a

    cupmarked

    slab.

    Nor

    is

    there,

    as

    yet,

    any

    convincing evidence

    of

    an

    interest

    in the

    sun

    or

    moon. Without

    such external confirmation of

    its alignments,

    Beltany

    must remain

    a

    debatable

    ..

    ..

    ....

    4

    .7"~~~~~~~~~~~~~~P0,7

    1

    PI.

    II.

    Beltany

    Tops.

    The

    cupmarked

    stone

    at

    the

    NE.

    of

    the

    ring.

    13

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    archaeo-astronomical candidate. It is evidence

    from a large group of

    similar monuments that is

    required.

    The final section of

    this

    paper

    offers

    a

    suggestion for fieldwork in

    Northern Ireland.

    THREE-STONE ROWS

    In his

    seminal paper about the stone circles in

    Ulster,

    Davies

    (1939, 3-4)

    drew attention

    to

    the

    settings of

    three large upright stones that some

    times stood

    alongside rings but which also existed

    in

    isolation in the eastern counties of

    Antrim,

    Armagh

    and

    Down. He suggested 'they may be a

    separate feature

    adopted by

    the circle-culture' in

    the counties of Fermanagh and

    Tyrone. This was

    perceptive.

    Both in the north of Ireland and in the

    western

    areas of Scotland there are many 3-Stone

    rows

    without

    any

    adjacent

    structure.

    They

    also

    occur

    sporadically

    in

    other parts of the British

    Isles and inwestern Europe, although whether

    such

    remote sites had any connection with those

    around the North

    Channel is doubtful.

    Some

    rows

    may

    be

    deceptive,

    the three survi

    vors of a once longer line from

    which stones have

    been removed

    or a

    pair of

    stones

    to

    which

    a

    third

    has been added

    by Trinity-minded

    Christians. In

    this

    respect

    it is

    interesting

    that

    quite

    often in

    Scotland

    the

    row

    has been

    'Christianised'

    by top

    pling the central pillar

    to

    transform the heathen

    line into two innocuous

    standing stones.

    Despite these reservations it is likely that the

    majority

    were

    put up as they

    now

    stand,

    three

    great stones in a straight line that often climbs in

    height towards the south.

    Why

    the number 3

    should have been

    considered desirable

    or

    power

    ful will

    probably

    never

    be

    known

    but 3 still has

    superstitious connotations,

    'third

    time

    lucky',

    'three

    cheers'. Diseased

    people would walk three

    times

    clockwise around the

    Stones

    of

    Stenness

    in

    Orkney,

    following

    the

    sun's

    path, triple spirals

    were

    carved at Newgrange, children

    were

    passed

    three

    times through the Cornish

    holed

    stone,

    Men-an-Tol,

    to

    preserve

    them from

    rickets,

    and

    men

    and

    women

    would

    turn a

    pestle

    three times

    sunwise in the

    cupmark

    on

    the base of

    a

    Celtic

    cross inKilchoman churchyard, Islay (Grinsell

    1976, 25,

    61-2).

    Scholars have

    remarked

    on

    the

    popularity

    of 3 in the rituals and

    myths

    of Celtic

    peoples

    (Ross 1967;

    Green

    1986, 208f).

    The

    choice of three for

    a row

    of

    standing

    stones

    may

    therefore have been considered

    a

    magical

    and

    potent

    combination.

    They

    were

    powerful enough

    to

    have

    villages

    named after

    them,

    Trillick

    (tri-liag,

    'three flag

    stones')

    in Co.

    Tyrone

    near

    the

    Derryallen

    row,

    and,

    in

    Wales,

    Harold's Stones

    near

    Monmouth

    at

    Trelleck

    (tri-ilech)

    where

    a

    sundial,

    dated

    1671,

    in

    the church has

    a

    carving

    of the three

    pillars

    and

    an

    account in Latin of how

    they

    were

    thrown there

    from a

    mountain

    by

    the

    Devil. Others

    like

    'The

    Three Sisters'

    in

    Co. Down

    may have

    passed

    on

    a

    folk-memory

    of solar

    activities to the

    name

    of

    the

    nearby village,

    Greenan

    (grianan,

    'the

    place

    of

    the

    sun').

    Characteristically,

    3-Stone rows

    are

    architectu

    rally impressive, some of them of 'three large

    slabs,

    sometimes

    eight

    feet

    high,

    set not

    conti

    guously,

    and with their broadest faces

    aligned'

    (Davies 1939, 3).

    To this the observation

    may be

    added that the

    preferred alignment

    of

    many

    of

    them isNNE.-SSW. or

    NE.-SW.

    with the taller

    stone at

    the

    southern end. A

    preliminary corpus

    of

    these

    rows

    (see Appendix)

    has been

    compiled by

    the writer in the

    hope

    that the

    many

    sites that exist

    inNorthern Ireland will be examined for astrono

    mical

    alignments just

    as

    Ruggles (1984)

    has

    done

    inwestern

    Scotland

    with

    very

    informative results.

    Working

    on

    islands such

    as

    Jura

    and

    Mull,

    and

    in Argyll from the north down to the Kintyre

    peninsula,

    he discerned distinctive

    regional trends

    (Ruggles 1984, 275, 285,

    304).

    In

    north

    Argyll

    and

    in

    Mull several of the 3-Stone

    rows,

    Dervaig

    and

    Balliscate

    amongst them,

    seem to have been

    directed towards the

    rising

    or

    setting

    of

    the

    southern moon although with a precision no

    greater

    than

    ?

    1'. In

    contrast,

    the

    superficially

    comparable

    rows in

    Kintyre

    were

    aligned

    towards

    the winter solstice as the famous

    alignment

    at

    Ballochroy

    has demonstrated

    (Thom 1971,

    36-7).

    It has

    already

    been

    emphasised

    that a row

    could

    have

    looked towards theNE. or

    SW.

    equally

    but

    whereas the northern range of declinations in the

    Scottish

    rows,

    +27?

    to

    +34?, yielded

    no

    persua

    sive astronomical harvest those

    to

    the

    south,

    -19'

    to -310 did with noticeable clusters around

    the

    solstice

    and

    the

    minor

    and

    major

    lunar extremes.

    There

    was no indication of

    any

    interest in

    the

    summer

    solstice or in the

    equinoxes

    which,

    indeed,

    were

    'strongly

    avoided'

    (Ruggles

    1984,

    304).

    There

    was,

    however,

    a

    strange

    concentra

    tion of declinations around

    -22?.5, puzzling

    'as

    there is no obvious solar

    or

    lunar

    explanation for

    it'

    (ibid

    305).

    Nor do stellar

    risings

    and

    settings

    offer a

    compelling

    answer.

    Sirius

    [a

    Canis

    Majoris] had that declination around 3000 BC (c.

    2300

    bc),

    too

    early

    if conventional

    thinking about

    the

    chronology

    of the rows

    being

    Bronze

    Age

    is

    correct. The

    same

    objection

    would

    apply

    to

    Rigel

    [/3

    Orionis]

    in

    2350 BC

    (c.

    1870

    bc). Conversely,

    Antares

    [a

    Scorpii]

    in 700 BC

    (c.

    525

    bc)

    is far too

    late.

    From the

    presumed

    existence of solar and

    lunar

    alignments

    in

    so

    many

    other

    rows

    it is

    probable

    that a

    declination of

    -22?-5, occurring

    in

    early

    December

    and

    January,

    also

    was

    of

    celestial

    importance

    to

    the

    erectors

    of

    some rows.

    Why this

    should

    have been

    so at present eludes us

    unless it

    marked thebeginning and end of a four-week long

    14

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    O-

    ~ ~ ~

    N.

    Argyll

    -

    3-STONE

    ROWS

    * Certain

    A

    Possible

    A*

    Ef

    * t-S-*tL~

    1j0

    20

    3|0 40 _I

    ~~~~~~~~~M

    Mi

    les

    Fig.

    1. Distrbution

    of

    3-stone

    rows

    around the

    North

    Channel.

    15

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    ritual period as the sun approached

    and

    departed

    from

    its

    winter solstice position. Unproveable

    though

    it

    is,

    one of the longBeaghmore

    rows

    may

    have

    provided

    this kind of

    solstitial

    'warning'.

    While

    three of the known

    alignments

    looked

    towards

    themid-winter sunset the

    fourth,

    the row

    to Circles F and G which are a full 160 ft (49m.)

    from the other rings, has an estimated declination

    of -22?-5. The sunwould have set in linewith this

    row towards the end of the firstweek inDecem

    ber. A

    fortnight

    later it reached its

    major setting

    at

    mid-winter before

    returning,

    nights later,

    to its

    setting beyond the row to Circles F and G. Other

    primitive societies have divided their year into

    'months'

    in

    this

    way (Burl 1981, 268-9),

    and the

    stone rows discussed

    in

    this paper may have per

    formed

    just

    such a calendrical function.

    On the

    assumption

    that the

    3-Stone

    rows in

    Northern Ireland were in

    some way connected

    with those in Scotland it is likely that they too

    contain alignments,

    and

    with Kintyre being

    so

    much closer thanMull and northern

    Argyll

    it

    may

    be that these

    will

    prove

    to be solar. None has

    yet

    been

    surveyed.

    It is thewriter's

    belief

    that the two

    tall stones sometimes thought to form an entrance

    toCircle G at

    Beaghmore

    are,

    in

    fact,

    the remains

    of a

    3-Stone

    row. From Thom's

    (1980,17) plan

    the

    two

    survivors, alongside the longer

    'warning'

    row,

    appear

    to

    have

    an

    azimuth of about

    218?.

    This

    would produce

    a declination of

    -24?-3

    very

    close

    to a mid-winter sunset

    alignment.

    The 3-Stone

    row

    by

    Circle E is clearer. It is 14 ft

    (4 3m.) long and composed of tall stones that

    dwarf the

    long

    row

    beside

    it.

    Reversing

    Thom's

    azimuth

    of

    390

    the

    row,

    with a

    south-westerly

    bearing

    of

    2190,

    has a declination of

    -23? 9,

    almost

    precisely

    that of mid-winter sunset. It

    offers

    some

    support

    to the

    supposition

    that

    align

    ments to the sun were

    preferred

    in

    Ulster.

    There are so

    many

    3-Stone

    rows in

    Ulster

    (Fig.

    1) that they form a challenging and statistically

    satisfying group

    for astronomical

    analysis.

    The

    results might provide information about

    cultural

    links

    between prehistoric Scotland and

    Ireland.

    Investigators

    will find

    some rows

    destroyed.

    Others will

    yield nothing except

    a

    meaningless

    declination. Local traits will almost

    certainly

    appear

    with

    preferences

    for

    direction,

    choice of

    site and graded heights of stones. But there should

    be an overall

    pattern

    which in itself

    may

    indicate,

    as Davies

    intimated,

    that the rows and the

    stone

    circles were

    originally

    of two

    separate

    traditions.

    If astronomical information should

    emerge this

    would

    give

    a

    reason

    forwhat

    otherwise

    are inex

    plicable

    settings lacking

    artefact or

    origin

    to

    explain

    their date or

    purpose. They

    are at

    present

    the

    enigmatic

    handiwork of

    people

    who raised the

    stones from

    compulsions

    that we do not

    under

    stand. It is not the stones that we look

    at but the

    minds of

    themen

    and women

    who put them up.

    The

    admonitory

    words of

    Mortimer Wheeler

    remain apposite. 'Wedig upmere things, forgetful

    that

    our proper aim is to dig up

    people

    . . .

    The

    only

    thing

    that

    really

    matters

    in

    our work is the

    recreation of thepast'

    (Wheeler

    1966,

    111-12).

    On North

    Uist

    in

    theOuter Hebrides three tall

    stones stand

    in

    a

    long

    ESE.-WNW. line on

    the

    lonely slopes

    of

    a

    hill

    overlooking

    a

    loch.

    They

    are

    known

    locally

    as

    Na Fir

    Bhreige,

    'TheFalse

    Men',

    turned

    into stone for

    deserting

    their

    wives

    (Grin

    sell

    1976,

    194).

    They

    point vaguely

    towards

    the

    sunrises and sunsets

    in late

    April

    and

    mid-August,

    times

    of no obvious

    prehistoric

    importance,

    set

    up

    three or

    more

    thousand

    years ago by

    people

    whose only memorial they now are. In a sense

    they

    have

    become the embodiment of those

    for

    gotten

    families.

    As

    Shakespeare

    observed

    in

    another

    context,

    'You are not

    wood,

    you

    are not

    stones, but

    men'

    Discovery of what

    such a stone rowmeant to its

    people

    will

    enable

    us to

    discover more about the

    people

    themselves.

    16

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    APPENDIX:

    A

    PRELIMINARY

    CORPUS

    OF 3-STONE ROWS

    *

    =

    doubtful site. [

    I

    =

    Reference

    no. A.

    Thom

    Min

    -

    minor; Maj

    -

    major; MR

    -

    moonrise; MS

    -

    moonset;

    N

    -

    northern; S

    -

    southern; SR

    -

    sunrise; SS

    -

    sunset

    BELGIUM

    Wgris,

    Erez&e,

    northern Luxembourg. 3

    stones,

    ESE.-WNW.,

    at

    Oppagne,

    tallest

    8

    ft

    (2-4m.) high.

    They stand at

    right-angles to the S. end

    of

    a

    2km.

    long

    alignment of an

    a116-couverte,

    a

    menhir

    and a

    megalithic

    tomb,

    the

    Dolmen

    de

    Weris (de

    Laet

    107-9;

    Service

    &

    Bradbury 145-50).

    BRITIANY,

    FRANCE

    Pergal, Lourget

    (C6te-du-Nord). 3 stones in

    NE.-SW. line (Burl

    1985, 40, no. 20).

    Kerfland,

    Plomeur

    (Finistere). 3 stones in NNE.

    SSW. line. Sherds,

    charcoal and

    a

    quernstone

    found

    by

    them (Burl 1985, 60, no.

    62).

    Les

    Demoiselles,

    St Just

    (Ile-et-Vilaine).

    'Les Roches

    Piquees'. 2 quartz stones, 10 ft (3m.) high on an E.-W.

    axis with a 3rd prostrate near them (Burl 1985, 92, no.

    llOf).

    La

    Pauvredrie,

    St Pere

    en Retz

    (Loire-Atlantique).

    3

    great stones lie

    in

    a NNE.-SSW. line,

    the

    biggest,

    19

    ft

    (5-8m.)

    long,

    at the

    NNE.

    (Burl 1985, 102,

    no.

    123b).

    Men Guen, Brouel,

    hle

    aux Moines

    (Morbihan).

    3

    stones stand in a N.-S. line, the tallest, at the N., 6?/2 ft

    (2m.)

    high.

    Charcoal,

    sherds,

    animal

    bones

    and flints

    found by them in 1877

    (Burl 1985, 115,

    no.

    139f).

    ENGLAND

    *Giant's

    Grave

    (Cumbria).

    SD 157 811

    [Li/ll].

    2

    great

    stones

    10 ft and 8 ft

    (3, 2-4m.) high

    stand side

    by

    side. The

    larger

    is

    cupmarked.

    A 3rd

    stone

    is

    reputed

    to

    have

    stood here

    (Hutchinson 1794, II, 529).

    *Shuggledown,

    Dartmoor

    (Devon).

    Southwards of

    the Longstone, SX 660

    855.

    1

    stone

    survives,

    41/2 ft

    (1-4m.)

    high,

    of the

    'Three Boys'

    that stood here. The

    others

    were

    taken

    away

    for

    gateposts

    (Worth

    220-22,

    no.

    38).

    *Setta

    Barrow,

    Exmoor

    (Somerset).

    SS 726 380.

    Pos

    sible

    row

    of 2

    stones

    with

    a

    4th almost

    at

    right-angles

    to

    them 26 ft (7-9m.) from their end (Grinsell 1970, 46).

    REPUBLIC

    OF IRELAND

    Cavan

    *St

    Brigid'

    Stones.

    H 059

    378.

    3 erratic sandstone

    boulders

    in line.

    1

    stone has

    11

    cupmarks,

    a

    2nd

    has 4

    and the 3rd has

    1

    (Evans

    67).

    Cork

    Cabragh

    B. W 27. 79. An

    alignment

    of 3

    stones with 2

    stones at right-angles to it

    (Killanin

    &

    Duignan 365).

    Canrooska. V 936

    583.

    A row of 3

    stones,

    2

    erect,

    1

    fallen,

    stands by a 5-stone circle. The

    biggest

    is pros

    trate, the others are

    2?h

    and

    1?/4

    ft

    (70, 40cm.) high

    (O'Nuallain

    1984, 39).

    Cloghboola Beg.

    W

    305 853.

    3 large stones lie to the S.

    of

    a 5-stone

    ring

    (O'Nuallain 1984, 31).

    Cullenagh. W 116 053. A

    3-stone row aligned NNE.

    SSW.

    Astronomy

    Az.

    30? 6,

    230?.6.

    Dec.

    =

    -32? 2,

    +33?.5

    (Lynch A. 1982, 206).

    Newcastle. W 577 804. 3 st st

    41/2,

    61?2

    and

    81/2

    ft (1 4, 2,

    2

    6m.) high. SW.-NE. 33 ft

    (Orm.)

    long. Astronomy:

    'On line of

    Summer soistitial sunrise'. Az.

    =

    230?-2,

    500.2.

    Dec.

    =

    -23?.7,

    +24?.1

    (Somerville

    1923,

    200;

    Lynch

    A.

    1982, 206).

    Donegal

    Barnes Lower. C 122 263, A line of 3 stones that rise in

    height

    towards the NE.

    Heights:

    4,

    23/4 and

    ?/2

    ft

    (1-2,

    0-8, 0-15m.) (Lacy

    77,

    no.

    358).

    Killycolman. C 282 334. 3

    stones in line once, now

    fallen (Lacy 83, no. 435).

    Labbadish. C 238 096. A

    line of 3 stones, roughly

    N-S. The central stone is

    41/4 ft (1 -3m.) high. The

    others

    are granite

    boulders (Lacy 83, no.

    441).

    Portleon. C 172 233. 2

    standing stones, a 3rd removed,

    in

    a NE.-SW. line

    (Lacy 85,

    no.

    468).

    Rashenny. C 422 476. 1

    standing

    stone

    4 ft

    (1 2m.)

    high.

    To

    itsW. and SW.

    are

    2

    partly

    buried

    stones.

    The

    SW.

    has

    2

    cupmarks

    (Lacy 85,

    no.

    472).

    Kerry

    *

    Cashelkeelty.

    V 747 575. 3

    large stones,

    1

    fallen,

    in an

    E.-W. row,

    201/2 ft (6 3m.) long, alongside

    a 5-stone

    ring.

    The tallest

    stone,

    8 ft

    (2-4m.)

    is

    at

    the E. A socket

    for a 4th

    stone was

    found

    (Lynch

    A.

    1981, 65-9, 76)

    Astronomy:

    Az.

    =

    2620.3, 820-3. Dec.

    =

    -30.2,

    +70?9

    (Lynch

    A.

    1982, 207).

    NORTHERN

    IRELAND

    Antrim

    Ballycleagh.

    D

    251 333. 2 massive

    stones

    stand 18 ft

    (5-5m.)

    apart,

    6 ft (1-8m.)

    high,

    a 3rd is prostrate in

    a

    roadside fence (Chart 1940, 17).

    Tournagrough.

    J 252 743. 2

    fallen

    stones

    lie

    10 ft

    (3m.)

    apart,

    7

    and 6 ft

    (2-1,

    1

    8m.) long. Originally

    there

    was a

    3rd

    stone, now buried

    (Chart 1940,

    57;

    Davies

    13,

    no.

    77).

    West

    Division. J 338 887. 'The Three

    Brothers'. 3

    large prostrate stones in a

    line once 15 ft

    (4-6m.)

    long

    (Chart

    1940,

    47).

    Armagh

    Aghmakane.

    J 021

    253. 'The

    Long

    Stones'. 'The

    Hag's

    Chair'.

    3

    tall

    standing

    stones

    in

    a

    line, arranged like

    the

    letter

    H.

    The tallest is 91/2 ft

    (2-9m.) high (Chart 1940,

    74).

    Aughadave. J 00. 19. 3

    stones

    in

    line, the tallest

    7?

    ft

    (2-3m.)

    high (Chart

    1940, 76).

    17

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  • 7/25/2019 Archaeo-Astronomy and the Standing Stones of NI

    13/16

    Eshwary.

    J 02. 28. 2

    standing stones,

    9 ft

    (2-7m.)

    apart, with a fallen

    stone between

    them

    (Davies

    9.

    no.

    84).

    Down

    Greenan.

    J 102 411. 'The Three Sisters'. 2

    standing

    stones and

    1

    prostrate, 5?/2 ft (1-7m.) average

    height,

    8

    and 19 ft

    (2-4, 5-8m.) apart

    (Chart

    1940,

    111).

    Fermanagh

    Cantytrindle.

    H

    22.

    55. A 3-stone

    row,

    with 2

    stones

    now

    missing. Stone is

    8?/4 ft (2-5m.) high.

    The

    missing

    stones

    were

    thrown down

    and

    buried in the 20th

    century

    (Davies 12,

    no.

    69;

    Chart

    1940,

    154).

    *Drumacken.

    H 362

    515.

    2

    large standing stones,

    41/4

    ft

    (1-3m.) apart,

    7

    and

    5?/2

    ft

    (2-1, 1-7m.)

    high.

    23/4

    ft

    (0-8m.) away

    is

    a

    3rd

    stone,

    23/4 ft

    (0-8m.) high

    (Chart

    1940, 157).

    *Formil.

    H

    159 676. Just to the N. of a stone

    circle with

    two converging stone rows

    are

    2 standing

    stones with

    another

    to

    the E (Chart

    1940, 145).

    Montiaghroe, NW. H 190 692. A stone circle and 3

    standing stones, 53/4, 43? and 33/4 ft

    (1-8,

    1-5,

    1-1m.) high

    (Chart

    1940, 144).

    Montiaghroe,

    SE. H 197

    690.

    3 stones

    stand in a slight

    curve 66

    and

    21/4 ft

    (2-1,

    0-8m.) apart. They are 81/4, 53/4

    and

    4.ft

    (2-5,

    1-8,

    1-2m.)

    high

    (Chart

    1940,

    144).

    Londonderry

    Clagan.

    C 583 054.

    3 tall stones of schist

    toppled by

    treasure-hunters in 1770.

    1

    has been

    re-erected,

    another

    leans and the 3rd

    is prostrate. This is the largest, 12 ft

    (3-7m.) long.

    The

    standing

    stone

    is 10 ft (3m.) high

    (Chart

    1940, 202).

    Coolnasillagh.

    C 785

    003.

    To

    the E. of a

    concentric

    stone circle is a 3-stone row of which only 1 stone stands.

    It is

    11/2

    ft (46cm.)

    high (Chart 1940, 208).

    Tyrone

    Beaghmore

    E. H 684

    843.

    Stone circle

    with 2

    parallel

    rows, NE.-SW.,

    theW. side long and of low stones, the

    E.

    side

    a

    short 3-stone

    row

    of tall

    pillars (May

    1953).

    Astronomy: Lat.

    54?-7.

    h

    =

    3??

    AZ.

    2190-

    Dec.

    =

    -23?-9.

    MW

    SS.

    (These bearings

    are

    calculated from the

    NE. azimuths of Thom

    who

    did

    not

    make observations

    to

    the SW.

    because of

    the close

    horizon

    (Thom

    A.

    S.

    1980).

    Beaghmore

    F.

    G. H

    683 842.

    2

    parallel

    rows

    run

    NE. to

    the

    midpoint

    of 2

    adjacent

    stone

    circles. The

    eastern

    row

    is long and composed of small stones. The W. row, now

    only

    of

    2 tall

    stones,

    is

    likely

    to

    be the remains

    of a

    3-stone

    row

    (May,

    1953).

    Astronomy:

    Az.

    222.-5?.

    Dec.

    -22?.5 (Thom

    A.

    S.

    1980).

    Beleevna

    Beg.

    H

    693 827. 3

    standing

    stones

    in

    line,

    7 ft

    (2l1m.)

    apart,

    4 to

    5 ft

    (1-2-1-5m.) high (Chart

    1940,

    233).

    Creevy Upper.

    H 25.

    88.

    1 small

    standing

    stone

    and

    2

    others prostrate

    (Chart

    1940,

    219).

    Davagh.

    H

    707 867.

    By a

    ruined

    stone

    circle

    are

    3

    big

    stones,

    2

    of

    them

    fallen

    (Chart

    1940,

    226).

    Derryallen.

    H

    309 531. 3

    standing

    stones,

    4 ft

    (1-2m.)

    high

    and

    9 ft

    (2-7m.)

    apart.

    This

    row

    stands

    only 2?/2

    miles

    SSW.

    of

    Trillick

    village

    (H

    332

    560)

    whose name

    means tri-liag, 'the

    three pillar-stones' (Chart 1940, 250;

    Joyce

    93).

    Glenmacoffer.

    H

    530

    862.

    3

    standing

    stones,

    6 ft

    (1

    8m.) high.

    Once associated

    with a stone

    circle

    (Chart

    1940,

    224).

    Tremoge,

    East. H 655 735. 2 stone

    circles,

    1

    with

    a

    tangential

    alignment

    of massive

    stones,

    the other with

    a

    3-stone row 25 ft

    (7-6m.)

    away (Chart

    238).

    Tremoge, West. H 64. 73. A ruined stone circle with 3

    prostrate slabs near it

    (Chart

    1940,

    239).

    SCOTLAND

    Argyll

    Ballochroy.

    NR 730 524.

    [A4/4].

    A

    line,

    NE.-SW.,

    of

    a

    3-stone row,

    the

    site

    of

    a

    cairn

    of which

    only

    the

    cist

    remains, and the site of a 2nd cairn

    and

    a

    standing

    stone

    (Burl 1983,

    7-11).

    Astronomy:

    Az. 2260. h.

    -0-.1.

    Dec.

    =

    -23?-6.

    MW

    SS

    (Thom

    A.

    1967,

    97, 151-5).

    Clochkeil.

    NR

    657 244.

    A

    16

    ft

    (Sm.)

    long

    line

    of 2

    standing stones on the dunes

    with

    a

    3rd

    prostrate

    by

    them. The

    tallest

    stone

    is

    61?

    ft

    (1-9m.) high (Ruggles

    189 (KT27);

    PSAS

    64,

    1929-30, 308). Astronomy:

    Az.

    2270?4to2290?45.

    Dec.

    =

    -220.5.

    NearMWSS

    (Ruggles

    188, 189,

    194, 1271).

    Duachy

    (Loch Seil).

    NM 801

    206.

    [Al/4].

    A

    line

    of 3

    standing stones,

    16 ft

    (5m.) long

    (Ruggles

    143

    (LN22);

    RCAHM-Argyll II, 1975,

    no.

    116).

    Astronomy:

    Az.

    1460.6

    to

    1490. Dec.

    -20?.7.

    Near

    Min.

    S

    MR

    (Ruggles

    143,

    144,272-5:

    Az.

    146?-8.

    h.

    60.9. Dec.

    =

    -210.3.

    MW

    SR;

    Thom

    1967,

    97).

    Dunamuck I.

    NR 847 929.

    [A2/211].

    2

    standing

    stones

    8?/4 ft (2-5m.) high with a prostrate stone

    111/2 ft (3-5m.)

    long

    between them in a row about

    16

    ft

    (Sm.)

    long

    (Ruggles

    161

    (AR28)).

    Astronomy: Az. 1640.2 to

    1650-6.

    Dec.

    =

    -30?.6.

    Near Maj SMR. The bearing of NNW.

    SSE. follows the line of local topography. (Ruggles 145,

    158,

    243, 268-70,

    272, 275; Az. (to N.)

    3460.1.

    h.

    3?.

    Dec.

    =

    +35?; Thom,

    1967

    97).

    Salachary.

    NM

    847 040.

    (A2/26].

    2 standing stones

    8?/4

    ft

    (2-5m.) high

    and

    a fallen stone in a row about 13 ft

    (4m.)

    long

    (Ruggles

    148. (AR6)). Astronomy: Az.

    3560.4

    to

    3570-8.

    Dec.

    =

    +350.2.

    Did not

    look

    to

    S.

    where line could be

    towards Maj S MR

    (Ruggles

    144,

    148,

    152,

    243, 281).

    Ayr

    Ballantrae.

    NX

    087

    818.

    [G1/4].

    3

    standing stones

    arranged

    NNE.-SSW.

    (Thom 1967, 137).

    Astronomy:

    Az.

    110-8.

    h.

    +20-7.

    Dec.

    =

    +36?.5.

    Deneb rising

    (Thom

    1967, 98, 105).

    Dumfriesshire

    Dyke.

    NT

    084 036.

    [G6/4].

    'Three

    Stannin'

    Stanes'.

    3

    squat

    massive

    blocks,

    in

    a NNE.-SSW.

    line 28 ft (8-5m.)

    long, 3,

    4 and 5 ft

    (0-9,

    1-2,

    1-5m.)

    high

    (RCAHM

    Dumfries,

    1920, 145, no. 426).

    Astronomy: From

    Thom's

    plan.

    Lat.

    550-32.

    Az.

    2020.

    h.

    20?.

    Dec.

    -29?.9.

    Maj S

    MR.

    Islay

    Ballinaby.

    NR

    220 671.

    [A7/5].

    Centre stone

    gone. At

    SSW.

    huge

    stone

    17 ft

    7

    (5-4m.)

    h.

    Row once 240 yds.

    (220m.)

    long

    (RCAHM-Argyll,

    V

    1984,

    63, no. 79).

    Astronomy: Az.

    3290.

    h. 0?40'. Maj N. MS

    (Thom

    &

    Thom 1978,

    169-70).

    18

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  • 7/25/2019 Archaeo-Astronomy and the Standing Stones of NI

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    Laphroaig (Achnancarranan). NR 389 460. 2 standing

    stones,

    8, 10 ft (2 5, 3m.) high, and a central

    stone,

    prostrate, in a line 20 ft (6m.) long (Ruggles 180

    (IS41)).

    Astronomy:

    Az.

    1680-4

    to

    1690.8.

    Dec.

    =

    -340.

    No

    target known (Ruggles 167, 169).

    Jura

    Knockrome. NR 548 714 to NR 560 717.

    [A6/4].

    A

    3-stone

    row. E.-W. 2950 ft

    (900m.)

    long (Ruggles 163.

    JU 3,

    4).

    Astronomy: Az.

    253?0.

    to 2530.2. Dec.

    =

    -30-2

    (Ruggles

    163, 166, 172; Az.

    730.2

    h.

    10.9.

    Dec.

    =

    + 10?-4.

    Spica

    1970 BC. No observation toW; Thom

    1967,

    97).

    Sannaig.

    NR 518 648.

    [A6/3].

    Centre stone

    71?4

    ft

    (2-2m.)

    h, NNE. and

    SSW.

    stones prostrate. Row once

    about

    16 ft

    (Sm.)

    long (Ruggles 165

    (JU7)).

    Astronomy:

    Az.

    198?0.

    to

    2020.0.

    Dec.

    =

    -32?.2.

    Maj SMS? This is

    an isolated row and an exception to the 'southern rule' of

    declinations between -19?.5 to -30? (Ruggles

    165, 166,

    172-3,

    272-4).

    Lewis

    Carloway (Clach

    an Tursa). NB 204 429.

    [H1/16].

    A

    standing stone

    81/4

    ft (2-5m.) high and 2 prostrate stones

    in a

    NW.-SE.

    line about 16 ft

    (Sm.)

    long (Ruggles 77

    (LH6)).

    Astronomy: From

    Thom's

    plan. Lat

    58?.3.

    Az.

    3330.

    Dec.

    =

    +29?.4. Maj N MS?

    Mull

    Ardnacross.

    NM 542 491.

    [M1/9].

    2

    parallel

    3-stone

    rows. NNE.-SSW.

    Each

    about 33

    ft

    (lOm.) long

    (Ruggles 127,

    243

    (ML12)). Astronomy:

    Az.

    206?0.

    to

    2090.2.

    Dec.

    =

    -22?-3

    Near

    MW

    SS

    (Ruggles 125, 135,

    279;

    Az.

    339??.

    h.

    20.

    Dec.

    +320.7.

    Capella

    1750 BC.

    But 'Fallen

    alignment';

    Thom

    1967,

    99).

    Balliscate. (Tobermory) NM 499 541. [M1/8]. 2 stand

    ing stones, 6 and

    81/4

    ft (1-8,

    2-5m.)

    high

    with

    a

    fallen

    central stone

    ? ft

    (2-8m.)

    long. N.-S.

    The

    line

    is

    16?/2

    ft

    (5m.)

    long

    (Ruggles

    123,

    243.

    (ML4)).

    Astronomy:

    Az.

    1840.4

    to

    1860.2

    Dec.

    =

    -28?0O.

    Near

    Maj

    S

    MS

    (Rug

    gles 123, 124, 268, 272, 274-5;

    Within

    30

    of

    meridian;

    Thom,

    Thom

    & Burl

    1987).

    Dervaig

    C

    (Dervaig

    C.

    NM 438 516.

    [M1/6].

    3

    stones

    3-4

    ft

    (1-1-2m.)

    high,

    2

    perhaps being broken,

    in

    a

    row,

    NNW.-SSE.,

    the

    line

    of the local

    topography.

    36

    ft

    (1rmn)

    long

    (Ruggles 127,

    243

    (ML 11)). Astronomy:

    Az.

    1560.4

    to

    1570.8.

    Dec.

    -28?

    4. Near

    Maj

    S MR

    (Ruggles 125, 134,

    168; Maybe

    a

    lunar declination

    on

    Maj

    N

    MS; Thom,

    Thom

    &

    Burl

    1987).

    $Glengorm. NM 434 571. [M1/7]. 3 stones set in a

    triangle

    but 2 have been re-erected

    (RCAHM-Argyll,

    III,

    1980, 58,

    no.

    105;

    Ruggles

    123

    (ML1)).

    Astronomy:

    Az.

    1530.5.

    h.