File:Cassiopeia A First Light (Chandra).jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:14, 14 June 2014		2,100 × 2,100 (375 KB)	commons>Regasterios	{{Information \|Description ={{en\|1=Chandra's first light image of the Cas A supernova remnant}} {{hu\|1=A Chandra űrtávcső első felvétele a Cas A szupernóva maradványairól}} \|Source =http://chandra.harvard.edu/photo/1999/0237/ \|Author...

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Image title	This X-ray image of the Cassiopeia A (Cas A) supernova remnant is the official first light image of the Chandra X-ray Observatory. The 5,000 second image was made with the Advanced CCD Imaging Spectrometer (ACIS). Two shock waves are visible: a fast outer shock and a slower inner shock. The inner shock wave is believed to be due to the collision of the ejecta from the supernova explosion with a circumstellar shell of material, heating it to a temperature of ten million degrees Celsius. The outer shock wave is analogous to an awesome sonic boom resulting from this collision. The bright object near the center may be the long sought neutron star or black hole that remained after the explosion that produced Cas A.
Author	Chandra X-ray Observatory Center
Width	2,100 px
Height	2,100 px
Compression scheme	LZW
Pixel composition	RGB
Orientation	Normal
Number of components	4
Number of rows per strip	31
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS3 Macintosh
File change date and time	01:08, 5 March 2008