File:Comets ison xray.jpg

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DescriptionComets ison xray.jpg	English: Astronomers used Chandra to observe Comet ISON and Comet PanSTARRS in 2013, when these comets were relatively close to the Earth. The graphic shows the comets in optical images taken by an astrophotographer, with insets showing the X-ray images from Chandra. The X-ray emission is produced when a wind of particles from the Sun - the solar wind - strikes the comet's atmosphere. The Chandra data was used to estimate the composition of the solar wind, including the amount of carbon and nitrogen, finding values that agree with independent measurements.
Date	1 March 2016, 11:30:43
Source	https://chandra.si.edu/photo/2016/comets/more.html
Author	NASA/CXC/Univ. of CT/B.Snios et al

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	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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current	11:34, 21 July 2023		1,211 × 1,211 (163 KB)	C messier (talk \| contribs)	Uploaded a work by NASA/CXC/Univ. of CT/B.Snios et al from https://chandra.si.edu/photo/2016/comets/more.html with UploadWizard

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Image title	Astronomers used Chandra to observe Comet ISON and Comet PanSTARRS in 2013, when these comets were relatively close to the Earth. The graphic shows the comets in optical images taken by an astrophotographer, with insets showing the X-ray images from Chandra. The X-ray emission is produced when a wind of particles from the Sun - the solar wind - strikes the comet's atmosphere. The Chandra data was used to estimate the composition of the solar wind, including the amount of carbon and nitrogen, finding values that agree with independent measurements.
Author	Chandra X-ray Observatory Center
Source	Chandra X-ray Observatory
Headline	Two comets when were relatively close to the Earth.
Credit/Provider	X-ray: NASA/CXC/Univ. of CT/B.Snios et al, Optical: DSS, Damian Peach (http://damianpeach.com)
Short title	Comets in the "X"-Treme
Usage terms	http://chandra.harvard.edu/photo/image_use.html
Date and time of data generation	18 April 2016
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS6 (Macintosh)
File change date and time	15:17, 12 April 2016
Exif version	2.21
Color space	sRGB
Date metadata was last modified	13:40, 18 April 2016
Date and time of digitizing	11:30, 1 March 2016
Unique ID of original document	AEC2EE66B3AE778691D5FA7AFD053203
Keywords	ISON
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
IIM version	4

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