1911 Encyclopædia Britannica/Lunation

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Luna
1911 Encyclopædia Britannica, Volume 17
Lunation
Lunavada
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See also Lunation on Wikipedia; and our 1911 Encyclopædia Britannica disclaimer.

​LUNATION, the period of return of the moon (luna) to the same position relative to the sun; for example, from full moon to full moon. Its duration is 29.5305884 days.

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