Image:Lunar libration with phase Oct 2007.gif

From Wikipedia, the free encyclopedia

Wikimedia Commons logo This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

[edit] Summary

Description
English: Lunar libration. see below for more descriptions
Français : Librations de la lune. Voir une description détaillée en dessous.
Source

English Wikipedia, original upload 5 November 2007 by Tomruen [1]
Date

2007-11-5 (published on Commons)
Author

Tomruen
Permission
(Reusing this image)

see below
Other versions Image:Lunation animation April 2007.gif (April 2007 animation, 60 frames, no phase shown)
Image:Lunar libration with phase2.gif (Nov 2005 animation)

[edit] Licensing

Public domain I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Afrikaans | Alemannisch | Aragonés | العربية | Asturianu | Български | Català | Česky | Cymraeg | Dansk | Deutsch | Eʋegbe | Ελληνικά | English | Español | Esperanto | Euskara | Estremeñu | فارسی | Français | Galego | 한국어 | हिन्दी | Hrvatski | Ido | Bahasa Indonesia | Íslenska | Italiano | עברית | Kurdî / كوردی | Latina | Lietuvių | Latviešu | Magyar | Македонски | Bahasa Melayu | Nederlands | ‪Norsk (bokmål)‬ | ‪Norsk (nynorsk)‬ | 日本語 | Polski | Português | Ripoarisch | Română | Русский | Shqip | Slovenčina | Slovenščina | Српски / Srpski | Svenska | ไทย | Tagalog | Türkçe | Українська | Tiếng Việt | Walon | ‪中文(简体)‬ | ‪中文(繁體)‬ | zh-yue-hant | +/-

[edit] 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.)

File history

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

Date/TimeDimensionsUserComment
current01:03, 6 November 2007640×642 (9.64 MB)Tomruen (== Summary == {{Information | Description = {{en|Lunar libration. ''see below for more descriptions''}} {{fr|Librations de la lune. ''Voir une description détaillée en dessous''.}} | Source = E)
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):