File:Comet Parts.jpg

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DescriptionComet Parts.jpg	This is an artist's concept of a comet dust trail and dust tail. The trail can only be seen in the light of radiated heat. The dust trail is made of particles that are the size of sand grains and pebbles. They are large enough that they are not affected much by the Sun's light and solar wind. The dust tail, on the other hand, is made of grains the size of cigarette-smoke particles. These grains are blown out of the dust coma near the comet nucleus by the Sun's light.
Source	NASA: http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=903 http://solarsystem.nasa.gov/multimedia/gallery/Comet_Parts.jpg
Author	NASA Ames Research Center/K. Jobse, P. Jenniskens
Permission (Reusing this file)	Images of NASA are within the public domain if not specifically noted otherwise

	This file is in the public domain in the United States 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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. 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.[1] 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. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	01:22, 31 January 2006		1,449 × 2,000 (643 KB)	Arnomane	{{Information\| \| Description = This is an artist's concept of a comet dust trail and dust tail. The trail can only be seen in the light of radiated heat. The dust trail is made of particles that are the size of sand grains and pebbles. They are large enou

File usage

The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Wikipedia:Reference desk/Archives/Science/2013 January 2

Global file usage

The following other wikis use this file:

Usage on ar.wikipedia.org
- ذيل المذنب
Usage on en.wikiquote.org
- Solar System
Usage on fr.wikipedia.org
- Queue de comète
Usage on hy.wikipedia.org
- Գիսաստղ
Usage on sh.wikipedia.org
- Kometa
- Rep komete
Usage on uk.wikipedia.org
- Комета
Usage on zh.wikipedia.org
- 彗星
- 彗尾
- 彗翎

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Orientation	Normal
Horizontal resolution	200 dpi
Vertical resolution	200 dpi
Software used	Adobe Photoshop 7.0
File change date and time	18:07, 13 January 2004
Color space	Uncalibrated

File:Comet Parts.jpg

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