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Unformatted text preview: crescent. If more than half is visible, it is called gibbous. If the entire moon is visible, it is a Full Moon if none of the moon is visible, it is a New Moon. The Earth-Moon System Size Earth is 4 times larger than the moon Distance to Moon: 60 R earth Moon Phases-Half of the moon is always illuminated by the sun.-The fraction of this half we can see determines which phase the moon is in.-This depends on where the moon is in its orbit. Moon Phase Facts-The full moon is always opposite the sun.-So a full moon rises at sunset and sets at sunrise.-If the moon is between us and the sun, it appears crescent.-So, a crescent moon appears near the sun in the sky.-it can be seen just after sunset or before sunrise.-First Quarter is a good time to view the moon....
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- Spring '11