File:Lunar libration with phase Oct 2007 450px.gif

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search
Lunar_libration_with_phase_Oct_2007_450px.gif(450 × 451 pixels, file size: 2.46 MB, MIME type: image/gif, looped, 56 frames, 5.6 s)
Description
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.
Date (UTC)
Source
Author Tomruen
Public domain This work has been released into the public domain by its author, Tomruen. This applies worldwide.
In some countries this may not be legally possible; if so:
Tomruen grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log[edit]

This image is a derivative work of the following images:

  • File:Lunar_libration_with_phase_Oct_2007.gif licensed with PD-self
    • 2007-11-06T01:03:49Z Tomruen 640x642 (10111965 Bytes) == Summary == {{Information | Description = {{en|[[Moon|Lunar]] [[:en:libration|libration]]. ''see below for more descriptions''}} {{fr|[[:fr:Libration|Librations]] de la [[:fr:lune|lune]]. ''Voir une description détaillée
Русский: ru:Либрация Луны и смена её фаз. См. ниже более подробную информацию.

Uploaded with derivativeFX

Technical[edit]

  • 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 been scaled down to 450×451 px to get it under the current MediaWiki size limit (width×height×frames ≤ 12.5 Mpx) for rescaling GIF animations.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current08:23, 7 November 2011Thumbnail for version as of 08:23, 7 November 2011450 × 451 (2.46 MB)Travürsa (talk | contribs)Removed a few frames to decrease the jumpiness when restarting.
00:18, 30 April 2010Thumbnail for version as of 00:18, 30 April 2010450 × 451 (2.44 MB)Ilmari Karonen (talk | contribs){{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
  • You cannot overwrite this file.

File usage on other wikis

The following other wikis use this file:

View more global usage of this file.