chapter02_part3_post-2

chapter02_part3_post-2 - Chapter 2(continued Discovering...

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Chapter 2 (continued) Discovering the Universe for Yourself
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Phases of Moon Half of Moon is illuminated by Sun and half is dark We see a changing combination of the bright and dark faces as Moon orbits
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Phases of the Moon
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Moon Rise/Set by Phase
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Phases of the Moon: 29.5-day cycle new crescent first quarter gibbous full gibbous last quarter crescent waxing Moon visible in afternoon/evening. Gets “fuller” and rises later each day. waning Moon visible in late night/morning. Gets “less” and sets later each day. } }
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We see only one side of Moon Synchronous rotation: the Moon rotates exactly once with each orbit That is why only one side is visible from Earth
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What causes eclipses? The Earth and Moon cast shadows. When either passes through the other’s shadow, we have an eclipse .
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Lunar Eclipse
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When can eclipses occur? Lunar eclipses can occur only at full moon . Lunar eclipses can be penumbral , partial , or total .
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This note was uploaded on 03/19/2008 for the course ISP 105 taught by Professor Beers during the Spring '08 term at Michigan State University.

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chapter02_part3_post-2 - Chapter 2(continued Discovering...

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