1911 Encyclopædia Britannica/Libration

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1911 Encyclopædia Britannica, Volume 16

Libration

Libya

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See also Libration on Wikipedia; and our 1911 Encyclopædia Britannica disclaimer.

22615341911 Encyclopædia Britannica, Volume 16 — Libration

LIBRATION (Lat. libra, a balance), a slow oscillation, as of a balance; in astronomy especially the seeming oscillation of the moon around her axis, by which portions of her surface near the edge of the disk are alternately brought into sight and swung out of sight.

1911 Encyclopædia Britannica/Libration

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