File:Horseshoe orbit of Cruithne from the perspective of Earth.gif
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Horseshoe_orbit_of_Cruithne_from_the_perspective_of_Earth.gif (240 × 180 pixels, file size: 374 KB, MIME type: image/gif, looped, 91 frames, 0.9 s)
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[edit]DescriptionHorseshoe orbit of Cruithne from the perspective of Earth.gif |
English: The orbits of Cruithne and Earth over the course of a year (from September 2007 to August 2008). Cruithne's location is indicated by the red box as it is too small to be seen at this distance. Earth is the white dot moving along the blue circle. The pale yellow circle in the centre is our Sun.
The blue circle represents the path of Earth as it revolves counter-clockwise around the sun. The "camera" revolves with Earth, so Earth appears to not be moving. The red path represents the path that Cruithne takes as it revolves around the sun. Since the camera is rotating with Earth, Cruithne appears to move along a bean-shaped path. This illusion is known as a Horseshoe orbit. |
Source | Frames from the GIF were acquired from the GFDL-licensed Celestia program in the form of screen shots using the Mac OS X screen-capture feature. Screen captures were converted into an animated GIF using GraphicConverter's batch edit feature by User:Jecowa. |
Author | User:Jecowa |
Licensing
[edit]The images that this animated GIF is created from come from a program licensed under the GFDL.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:03, 2 December 2007 | 240 × 180 (374 KB) | Jecowa (talk | contribs) | == Summary == The orbits of Cruithne and Earth over the course of a year (from September 2007 to August 2008). Cruithne's location is indicated by the red box as it is too small to be seen at this distance. Earth is the white do |
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