ASTR 1110 book summary - ch.2.3

ASTR 1110 book - Astronomy Book Notes 2.3 The Moon Our Constant Companion Moon orbits Earth about once every 27.3 days Entire orbit of the Moon

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Astronomy – Book Notes 2.3 The Moon, Our Constant Companion - Moon orbits Earth about once every 27.3 days - Entire orbit of the Moon would fit inside the Sun. - Lunar Phases : Description of the Moon as seen from Earth – o Appearance of rising in the east and setting in the west o Its appearance and times at which it rises/sets change with the cycle of lunar phases. o Dependent upon its position relative to the Sun as it orbits Earth. - Synchronous Rotation : Moon must rotate once on its axis in the same time that it makes a single orbit of Earth - Eclipse : Occurs when one astronomical object casts a shadow on another or crosses our line of sight to the other object - The Moon and the Earth cast shadows in sunlight – these shadows can create eclipses when the Sun, Earth, and Moon fall into a straight line. – 2 Types: o Lunar Eclipse: Earth lies directly between the Sun and Moon, so that Earth’s shadow falls on the Moon o Solar Eclipse: Moon lies directly between the Sun and the Earth, so that the Moon’s
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This note was uploaded on 02/27/2008 for the course ASTR 1110 taught by Professor Hornstein during the Spring '08 term at Colorado.

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ASTR 1110 book - Astronomy Book Notes 2.3 The Moon Our Constant Companion Moon orbits Earth about once every 27.3 days Entire orbit of the Moon

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