File:Sirius A and B- A Double-Star System in the Constellation Canis Major (2940666747).jpg
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|DescriptionSirius A and B- A Double-Star System in the Constellation Canis Major (2940666747).jpg||
Description: The Chandra X-ray image of Sirius A & B, a double star system located 8.6 light years from Earth, shows a bright source and a dim source. The central bright source is Sirius B, a dense white dwarf star with a surface temperature of about 25,000 degrees Celsius. The dim source (slightly above and to the right of Sirius B) is Sirius A, a normal star more than twice as massive as the Sun. The spoke-like pattern of light is an instrument artifact due to the transmission grating. The white dwarf, Sirius B, has a mass equal to the mass of the Sun packed into a diameter that is 90% that of the Earth. The gravity on the surface of Sirius B is 400,000 times that of Earth!
Creator/Photographer: Chandra X-ray Observatory
NASA's Chandra X-ray Observatory, which was launched and deployed by Space Shuttle Columbia on July 23, 1999, is the most sophisticated X-ray observatory built to date. The mirrors on Chandra are the largest, most precisely shaped and aligned, and smoothest mirrors ever constructed. Chandra is helping scientists better understand the hot, turbulent regions of space and answer fundamental questions about origin, evolution, and destiny of the Universe. The images Chandra makes are twenty-five times sharper than the best previous X-ray telescope. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory controls Chandra science and flight operations from the Chandra X-ray Center in Cambridge, Massachusetts.
Medium: Chandra telescope x-ray
Persistent URL: chandra.harvard.edu/photo/2000/0065/
Repository: Smithsonian Astrophysical Observatory
Collection: White Dwarfs and Planetary Nebulas Collection
Gift line: NASA/CXC/SAOAccession number: sirius
|Source||Sirius A and B: A Double-Star System in the Constellation Canis Major|
|Author||Smithsonian Institution from United States|
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|This image was originally posted to Flickr by Smithsonian Institution at https://flickr.com/photos/25053835@N03/2940666747. It was reviewed on 14 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.|
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|Author||Chandra X-ray Observatory Center|
|Headline||A double star system in the constellation Canis Major.|
|Source||Chandra X-ray Observatory|
|Online copyright statement|
|Date and time of data generation||26 September 2000|
|Bits per component|
|Number of components||3|
|Horizontal resolution||300 dpi|
|Vertical resolution||300 dpi|
|Data arrangement||chunky format|
|Software used||Adobe Photoshop CS3 Macintosh|
|File change date and time||10:35, 30 September 2008|
|Image width||1,936 px|
|Image height||1,531 px|
|Date and time of digitizing||06:35, 30 September 2008|
|Date metadata was last modified||14:39, 8 October 2008|
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