File:Galilean moon Laplace resonance animation 2.gif

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Galilean_moon_Laplace_resonance_animation_2.gif (365 × 245 pixels, file size: 1.46 MB, MIME type: image/gif, looped, 288 frames, 5.8 s)

Captions

Captions

Animation of the 1:2:4 Laplace resonance between Io, Europa, and Ganymede.

Summary

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Description
English: Animation of the 1:2:4 Laplace resonance between Io, Europa, and Ganymede. The labels indicate the ratios of orbital periods: Europa's is twice Io's, and Ganymede's is four times Io's.
In this revision of a black and white version, brief color changes are used to highlight conjunctions (green or magenta for nearest-neighbor, gray for non-nearest neighbor), to illustrate that the conjunctions recur at the same orbital locations (after making allowance for precession). All nearest-neighbor conjunctions occur in the vertical axis running through the diagram. Per orbit of Ganymede, there are 8 occasions when at least 3 bodies line up (examples of syzygy), separated by successive intervals of 1/6, 1/6 ,1/12. 1/12, 1/6, 1/6, 1/12 and 1/12 of a cycle, including 2 occasions when all 4 bodies line up (all oppositions of Europa involve 4-body lineups).
Warning: do not downsize the image below its original size of 365 × 245 when used in a Wikipedia article, as the animation won't move then (at least not for all users).
Date
Source Revision of Galilean moon Laplace resonance animation.gif by User:Matma Rex
Author WolfmanSF
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Licensing

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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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Date/TimeThumbnailDimensionsUserComment
current22:07, 1 September 2014Thumbnail for version as of 22:07, 1 September 2014365 × 245 (1.46 MB)WolfmanSF (talk | contribs)User created page with UploadWizard

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