Moon Phases AY 101
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This 2 page One Day of Notes was uploaded by Alyssa Hendrixson on Tuesday January 20, 2015. The One Day of Notes belongs to AY 101 at University of Alabama - Tuscaloosa taught by Dean Martin Townsley in Winter2015. Since its upload, it has received 117 views. For similar materials see Introduction to Astronomy in Physics 2 at University of Alabama - Tuscaloosa.
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Date Created: 01/20/15
Astronomy 101 Lecture Notes Wednesdayjanuary 14 2015 Moon Phases 0 Phase Names 0 Surface is the same just illumination is different 0 Cycle is once per month 4 quarters per month 4 weeks per month 0 Names 0 O New moon Waxing crescent First quarter Waxing gibbous Full moon Waning gibbous Last quarter Waning crescent The sun always illuminates half of the moon just like the Earth and other planets Phase determined by how much of the illuminated half we can see from Earth 0 Moon Faces O O O 0 We always see the same face of the moon the Near Side The far Side of the moon is illuminated when we see dark portions Seeing it requires a spacecraft Not the far side of the moon is not dark lt receives just as much light as the near side The Moon mist rotate once during its monthly orbit to keep same face toward Earth 0 Sky Position of Moon 0 Moon phase indicates the relative portion of moon and sun in the sky New moon 0 Near Sun in sky Full moon Opposite Sun in sky First quarter 0 High in the sky at sunset 0 Earth and Moon Shadows O O Eclipses are caused by Earth and Moon shadows Solar eclipse 0 Some places on earth are in the moon39s shadow Can only see all of it from some places on earth Lunar eclipse 0 The moon is in Earth39s shadow Everyone can see the same Orbit Inclination Astronomy 101 Lecture Notes Eclipses don39t happen every month due to the inclination of the moon39s orbit Usually the moon passes about or below the line between the earth and sun on new and full moons