1e16m_comparison_10_light_years_sirius.png
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Description 1e16m comparison 10 light years sirius.png |
English:
Comparison of sizes of objects with order of magnitude 1e16m: ten light year radius shell with yellow Vernal Point arrow; below, white star Sirius 8.5 light years from Sun; on left, BL Ceti 8.73 light years distant; middle right, Proxima and Alpha Centauri about 4 light years distant; light year shell with Great January comet (Comet C/1910 A1)'s orbit shown as long extreme ellipse inside. All distances to scale, but stars are artificially enlarged for illustrative purposes only. No transparency version.
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Source |
derived from Paul Stansifer's POV-Ray source files (see below), by me, 84user, using w:en:POV-Ray , and w:en:IrfanView . 84user's contribution (inside POV-Ray files: adjusting coordinates, changing light source and other parameters) is public domain and source files used are described at User:84user/Size comparison . Physical information is based on the Wikipedia articles and elsewhere (see POVRay source files) about the respective lengths. Paul Stansifer's contributions to this image (POV-Ray code) are available under the GPL, v. 2, and other licenses. See User:Paul Stansifer/Size comparison for more details and the other licenses. |
Author | Paul Stansifer , and User:84user (see "source") |
Licensing
Because this image was rendered using only Paul Stanfiser's POV source code (no external texture maps used), it is a pure derivative. Therefore Paul's licenses apply; you may use it under the terms of any of these:
This work is free software ; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation ; version 2. This work is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See version 2 of the GNU General Public License for more details. GNU General Public License v2 GPLv2 https://www.gnu.org/licenses/old-licenses/gpl-2.0.html true |
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers . | |
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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 3.0 Creative Commons Attribution-Share Alike 3.0 true true |
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 . Subject to disclaimers . http://www.gnu.org/copyleft/fdl.html GFDL GNU Free Documentation License true true |
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See also
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Annotations
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This image is annotated: View the annotations at Commons |