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sidereal month

A Dictionary of Astronomy | 1997 | 140 words | Copyright

sidereal month The mean period of the Moon's orbital revolution about the Earth with reference to the stars, equal to 27.321 66 days.

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"sidereal month." A Dictionary of Astronomy. 1997. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

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