4234

Elements and finding ephemeris of planet 1906 VM. By EZeanor A. Lamson.

(Communicated by Captain W. y, Barnette, Superintendent U. S. Naval Observatory.)

The following elements and ephemeris are computed I Coordinates for the equator

159 160

308.0.

x = [9.99967 I ] r .sin (v + 164" 23' 54!'6) y = [ 9 . 9 8 8 2 1 1 ] r . s i n ( v + - 73 5 2 17.0) z = [9 .367619]r-s in(v+ 83 44 50.7)

Ephemeris for 1 2 ~ Gr. M. T.

from observations of Sept. 25 , Oct. 1 5 , and Nov. 2 3 , 1906. The two extreme observations are photographic and were made by J. H. Metcalf, Taunton. The observation of Oct. I 5 was micrometric and made at Washington. The great ec- centricity of the orbit is to be noted.

Elements. Epoch 1906 Nov. 23.5 Gr. M. T.

l%f = 341" 3' 9!'4

i w = 242 8 10.7

i = 10 23 28.3 rp = 2 2 5 1 32.0

= 192 2 7 37.1 1908.0

p = 6371'751 loga = 0.496904

Opposition 1908 March 29. Mag. 14.5.

a

I 2 h 36" I 5P4 33 21.5 30 18.7 2 7 15.0

24 '3.3 21 17.0 18 28.1 1 5 50.0

I 2 13 24.4

I 908 d

- 5 " 5 2 ' 47" 5 2 2 5 0 4 5 2 11

4 2 1 I 4 3 5 0 23 3 2 0 3 2 5 0 37 2 2 2 28

- - I 55 52

log A

Mar. 15 '9 23 2 7

31 April 4

8

16 I 2

0.3278 3280 329' 3312 3343 3383 3432 3490

0.3555

log A

Fortsetzung der Ephemeride fur den Kometen 1907 d. - Mg. - 10.8

10.9

11.0

11.1

I 1.3

- Mg. - 10.5

10.5

10.6

10.7

10.8

1908 a 1908.0 d 1908.0 log Y log A 1908 a 1908.0 d 1908.0

- 3" 2 g! 1 3 12.9 3 0.9 2 49.2 2 31.7 2 26.6 2 15.8 2 5.4 1 55.3 1 45.7 1 36.5 1 2 7 . 7 I 19.4 I 11.6 I 4.2 0 57.4

-0 51.2

log r

Marz 5 7 9

I 3 15 I 7 19

23 2 5

2 7

29 3'

April 2

4 6

I 1

2 1

I S h 4m25" 3 23 2 I 4

[ 5 I 0

[ 4 59 41 58 1 7 56 49 55 16 53 39 5' 58 5 0 '3 48 2 5

46 33 44 39 42 42 40 43

14 38 43

- 6' 44:O 6 32.6 6 21.0

6 9.1 5 57.0 5 44.7 5 32.2 5 19.6 5 6.9 4 54.1 4 41.3 4 28.4 4 '5.5 4 2.7

3 50.0

3 37.5 -3 25. '

0.4943

0.5012

0.5080

0.5 I47

0 . 5 2 1 2

0.5275

0.5338

0.5399

0.5458

0.40 I 2

0.4004

0.4001

0.4004

0.401 2

0.4026

0.4048

0.4076

0.4112

April 6 8

I 0 I 2

I 4 16 18 2 0

2 2

24

2 8 30

Mai 2

4 6 8

8 26

14h 3gm43= 36 42 34 39 32 36 30 32 28 29 26 26 24 2 5 2 2 23 2 0 23 18 2 5

16 30 14 36 1 2 44 1 0 55 9 1 1

14 7 3'

0.5458

0.5516

0.5514

0.5631

0.5687

0.5741

0.5795

0.5848

0.5900

0.4112

0.415'1

0.4209

0.4269

0.4335

0.4409

0.4490

0.4577

0.4670 l z h M. Z. Berlin. Korrektion der Ephemeride 1908 Jan. 13: +2oS -I.'o.

Berlin, 1908 Febr. 12. - H H Kritzinger.

Todeeanzeige. Mr. Richard HinckZey AZZen, author of >Star names and their meaningsa died January 14 at Northampton, Mass. Hertitan S. Davis.

I n h a l t zu Nr. 4234. E. E. Barnard. Micrometer observations of Phoebe. 145. - E. E. Barnard. Photographic and visual observations of Iapetus, the eighth satellite of Saturn, in 1906. 147. - E. E. Barnard. Observations of a faint asteroid 1904 Ova near the place of Phoebe, on 1904 Sept. 12. 149. - Rambaud, Sy et Villnte. Observations de petites planktes et de la comkte 1907 e. 151. - y. G. Poriw. Observations of minor planets. 155. - W. Ceraski. Deux nouvelles variables. 157. - P. V. Nergebauer. Fortsetzung der Ephemeride des Planeten 1908 BM. I 57. - E. A. Lamson. Elements and finding ephemeris of planet 1906 VIM. 159, - H. H. Krzlzinger. Fortsetzung der Ephemeride f& den Kometen I907 d. 159. - H. S. Davis. Anzeige des Todes von Richard Hinckley Allen. 159.

Ctesohlossrn x@j Febr. 22, Herausgeber, im Anftrage: H. Kobo Id. Druok von 0. 8 oha idt . Expedition: Kiel, Niemannsweg 163