Phases of the Moon
Sun Lighted Side Dark Side Moon Earth Day Night Moon’s Orbit Earth–Moon Relationship The Moon revolves around the Earth every 29 ½ days! The Moon also rotates on its axis every 29 ½ days.
Sun Lighted Side Dark Side Moon Earth Day Night Moon’s Orbit Because of that, the same side of the Moon faces the Earth as the Moon revolves around the Earth. Earth–Moon Relationship
The Moon Phases The shape of the Moon appears to change
Waxing Moons The Moon appears to grow or get bigger The Moon phases starting at the New Moon and ending at the Full Moon New Moon Waxing Gibbous 1 st Quarter Waxing Crescent Full Moon
Waning Moons The Moon appears to be getting smaller or disappearing The moon phases starting at Full Moon and ending with the New Moon Full Moon Waning Crescent 3 rd or Last Quarter Waning Gibbous New Moon
Earth Sun New Moon No Moon is visible in the night sky. What we would see at night on Earth – no moon! We can’t see the moon at night because it is on the other side of the Earth
New Moon
Waxing Crescent A small sliver on the right side of the Moon is visible just after sundown. What we would see at night on Earth This is the angle the moon is viewed from Earth Sun
Waxing Crescent
1 st Quarter Earth Looks like half of the Moon, but you are really seeing only a quarter. What we would see at night on Earth This is the angle the moon is viewed from Sun Earth
1 st Quarter
Waxing Gibbous Earth The lighted side has bulged out; visible in the evening. What we would see at night on Earth This is the angle the Moon is viewed from Earth Sun
Waxing Gibbous
Full Moon Earth Very bright; you can see all of the lighted side of the Moon. Earth Sun What we would see at night on Earth This is the angle the Moon is viewed from
Full Moon
Waning Gibbous Earth The lighted side is now on the left side; visible in the early morning. What we would see at night on Earth This is the angle the Moon is viewed from Earth Sun
Waning Gibbous
3 rd (Last) Quarter Earth Opposite image of 1 st Quarter What we would see at night on Earth This is the angle the Moon is viewed from Earth Sun
3 rd (Last) Quarter
Waning Crescent Earth A small sliver of the Moon is visible just before dawn. What we would see at night on Earth This is the angle the Moon is viewed from Earth Sun
Waning Crescent
The Moon Phases Moon Phases Animation
Earth Sun Why We See Moon Phases Earth The shape of the Moon appears to change due to the angle at which the lighted side is seen from Earth.
Earth Sun 1 st Quarter Waning Gibbous Full Moon Waxing Crescent New Moon Waning Crescent 3 rd (Last) Quarter Waxing Gibbous Why We See Moon Phases Animation
The Phases of the Moon