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Period of the libration The figures are
visualizing the geocentric optical libration of the Moon.
The red dot is
located at 0° longitude and 0° latitude (selenographic).
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Animation: Lunar libration with phase Apparent Disk of Solar System Object (NASA) |
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| Books | |
| Jean
Meeus: Mathematical Astronomy Morsels Chapter 6: The librations of the Moon. |
©
2006 J. Giesen
Last
modified: 2006, Aug 26