allieclairemoonphases+-+blue

=**Moon Phases**= by Allie Collier and Claire Rowat Blue/7 Earth Science Fretz

What are the Phases of the Moon?
__8 Phases of the Moon__

1. New Moon 2. Waxing Crescent 3. Waxing Quater (First Quater) 4. Waxing Gibbous 5. Full Moon 6. Wanning Gobious 7. Wanning Quater (Last Quater) 8. Wanning Crescent

__Waxing__=When the moon looks bigger Ex. Waxing leads to a full moon

__Waning__=When the moon looks smaller Ex. Wanning leads to a new moon

Why do they Occur?
1. Seen by reflected sunlight 2. The moon is in orbit around the Earth

Moon Facts
__Lunar Month__=The time from one new moon to the next -29.5 days -1 revolution is 27.3 days

__Penumbra__=The partial shadowing surronding the umbra (Lighter) __Umbra__=Total shadow from the Earth (darker)

During new moon and full moon the Earth, moon, and the sun form a 180 degree line in space

Eclipses

 * Eclipses are named for what they block out

__Lunar Eclipse__=When a full moon passes into the Earth's umbra and becomes shaded from the Earth -Sun's rays are blocked out -Can only occur during the full moon phase -Doesn't occur often -Total eclipse occur when the moon is fully within the umbra -Usually occurs once a year -Doesn't occur every month due to the 5 degree inclination from the Earth's orbit and the moon's orbit -Dusky red and coppery colored (Earth's atmosphere bends light rays to red) -Can last for 2 hours

__Solar Eclipse__=When the moon's umbra reaches the Earth's surface blocking out the sun -Moons umbra is long enough to reach Earth only at an apogee -The moon blocks the entire photosphere of the sun -Can only occur at the new moon phase -Doesn't occur every month due to the moon's angle of orbit -Shadow falls above or below Earth -Usually one solar eclipse per year -Bright stars and planet can be seen clearly during this time -Relative viewing location can be found every 300 years! -Lasts 7.5 minutes

__Apogee__=The point of orbit farthest away from the Earth -You see the sun as a thin bright ring around the moon -During a solar eclipse the umbra shadow fails to reach Earth

__Perigee__=The point of orbit closest to the Earth

__Annular__=When observers see the sun's ring around the moon in apogee -Known as a ring eclipse

__Eclipse Path__=The track of Moon's shadow racing across Earth at 1600 kilometers per hour -Path could be 1,000's in kilometers