File:Lunar libration with phase Oct 2007 (continuous loop).gif

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Sharaxaad
English: Lunar libration. see below for more descriptions
Français : Librations de la lune. Voir une description détaillée en dessous.
Русский: ru:Либрация Луны и смена её фаз. См. ниже более подробную информацию.
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Public domain This work has been released into the public domain by its author, Tomruen. This applies worldwide.

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Tomruen grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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This image is a derivative work of the following images:

[:fr:Libration|[:fr:lune|lune]. description'

Русский: ru:Либрация Луны и смена её фаз. См. ниже более подробную информацию.

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Technical

  • Book: "Astronomical Formulae for Calculators, 4th edition", Jean Meeus, 1988, published by "Willmann-Bell, Inc"
    • Chapter 30 "Position of the Moon"

Source bitmap for projection from NRL's Clementine Spacecraft:

  • Animation
    • 60 frames, 12 hour step.
    • Period used: 29.5 days
    • Animation began and ended near Apogee to minimize "jumping" when cycles back to the start.
    • New moon given an unreal 1% intensity "Ambient light" to show motion in all phases.
    • View assumed from the center of the earth. (Geometrically impossible, but best demonstration of monthly libration caused by moon's motion versus the shorter daily libration that would be included from the surface of the earth.)

This version of the animation has less frames compared to the original to make the loop continuous (jumpiness when restarting).

Captions

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Moon liberation See below for further descriptions.

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Wikimedia username Ingiriisi: Tomruen
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Taariikhda/WaqtigaSawir yarCabirkaIsticmaaleKa hadalka
kan hadda17:59, 18 Oktoobar 2020Sawirka yar nuuciisa ahaa 17:59, 18 Oktoobar 2020640 × 642 (9.64 MB)Jahobrthe limit is no longer at 12.2 MPixel. better version, but less frames compared to the original to keep the continuous loop
08:23, 7 Nofeembar 2011Sawirka yar nuuciisa ahaa 08:23, 7 Nofeembar 2011450 × 451 (2.46 MB)TravürsaRemoved a few frames to decrease the jumpiness when restarting.
00:18, 30 Abriil 2010Sawirka yar nuuciisa ahaa 00:18, 30 Abriil 2010450 × 451 (2.44 MB)Ilmari Karonen{{Information |Description={{en|Lunar libration. ''see below for more descriptions''}} {{fr|Librations de la lune. ''Voir une description détaillée en dessous''.}} |Source=*[[:File:Lunar_libratio

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