Online Encyclopedia

LIBRATION (Lat. libra, a balance)

Online Encyclopedia
Originally appearing in Volume V16, Page 578 of the 1911 Encyclopedia Britannica.
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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.
End of Article: LIBRATION (Lat. libra, a balance)
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