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This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
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Summary
Description |
Diameter comparison of the dwarf planet–asteroid Ceres with the Moon and Earth. Scale: Approximately 29 km per pixel. A previous version of this image has been used in The Main Asteroid Belt (Oct 25, 2009) |
Date |
26 July 2007 |
Source |
This picture was composed from Image:Mercury_Earth_Comparison.png, Image:Full Moon Luc Viatour.jpg, and Image:Ceres_optimized.jpg by -- CWitte 11:33, 26 July 2007 (UTC) |
Author |
CWitte |
Licensing
For the Ceres and Earth part of the composition:
Public domainPublic domainfalsefalse |
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This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |
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Warnings:
- Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
- The NASA website hosts a large number of images from the Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
- Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI. See also {{ PD-Hubble}} and {{ Cc-Hubble}}.
- The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
- Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted.
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and for the lunar part of the composition:
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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
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File usage
The following pages on Schools Wikipedia link to this image (list may be incomplete):
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