Perigee distance, the closest distance the moon is from Earth, is 363 000 km.
Apogee distance, the furthest distance the moon is from Earth, is 405 000 km.
One rotation takes 27.3 days
One revolution around the Earth takes 27.3 days
Reflects light from the Sun
No atmosphere so all UV rays from the Sun reach the surface
Gravity is only 1⁄6 of the Earth's gravity
Craters are deep depressions on the surface caused by meteorites
Maria (or 'seas') are large smooth areas on the surface covered by plains of grey basalt - like rock
Lunar highlands and rilles (long steep-sided valleys) cover the rest of the surface
Earth's moon is only the 5th largest moon in the solar system.
The Phases of the Moon
Revolution of the Moon around Earth - 27.3 days
Rotation of the Moon on its Axis - 27.3 days
'Moonlight' - The Moon does not make its own light. It reflects light from the Sun. Half the Moon is always in sunlight, just as half the Earth has 'day' and the other half has 'night'. From Earth, we can only see 50% of the Moon at any time.
8 Moon Phases each Lunar Month of 27.3 days
New Moon - The face of the Moon facing Earth is completely in shadow ('No Moon'). The Sun, the Moon and the Earth are in line.
Waxing Crescent - A horn-shaped part of the Moon is illuminated.
First Quarter - Only half of the face of the Moon facing Earth is illuminated.
Waxing Gibbous - More than half of the face we see is illuminated.
Full Moon - All of the face we see is illuminated. The Sun, the Earth and the Moon are in a line.
Waning Gibbous - More than half of the face we see appears lit.
Last Quarter - Only half of the face we see appears lit.
Waning Crescent - A horn-shaped part of the Moon facing Earth is illuminated.