Phases of the MoonPhases of the Moon

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Phases of the MoonPhases of the Moon

• Waxing – more of Moon’s lighted side becomes visible

• Waning – visible lighted side of Moon shrinks

Phases of the MoonPhases of the Moon

• New Moon – Moon is between Sun and Earth, invisible to us

• Waxing Crescent Moon – Sliver of moon, follows new moon

Phases of the MoonPhases of the Moon

• 1st Quarter Moon – Half of moon visible, follows new moon

• Waxing Gibbous Moon – ¾ of moon visible, follows new moon

Phases of the MoonPhases of the Moon

• Full Moon – Completely visible, Earth is between Sun and Moon

• Waning Gibbous Moon –¾ of Moon, follows full moon

Phases of the MoonPhases of the Moon

• 3rd Quarter Moon – Half of Moon, after full moon

• Waning Crescent Moon – Sliver of moon, after full moon

Moon’s RotationMoon’s Rotation

• Moons rotation upon its axis is same as its orbit around Earth

• Earth sees the same face of the moon

EclipsesEclipses

• The partial or total blocking of one object in space by another

• Involves sun, moon and earth

• Two types: Solar and Lunar

• Umbra is darkest part of shadow

• Penumbra is the larger part of shadow

Umbra and PenumbraUmbra and Penumbra

Solar EclipseSolar Eclipse

• Moon blocks view of sun

• Occurs during New moon

Lunar EclipseLunar Eclipse

• Earth casts shadow on the moon

• Occurs at a full moon

TidesTides

• Rise and fall of ocean water

• Occurs every 12.5 hours– 6 hours rising– 6 hours receding

• Tides are caused mainly by Moons gravitational pull.

Tide CycleTide Cycle

• 2 high tides and 2 low tides

• Due to gravitational pull of moon

• Due to phases of moon, variation in tides– Spring: Increased difference between high

and low tides– Neap: Minimal difference high and low tides

TidesTides

TidesTides