File:Orbit of Sirius A and B (2000-0065-more-2).tiff

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Orbit of Sirius A and B The relative positions of Sirius A (large filled circle) and Sirius B (small filled circle) in the 50 year orbit are shown. Note that north is down, as opposed to up in the Chandra and optical images.

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Description	English: Orbit of Sirius A and B The relative positions of Sirius A (large filled circle) and Sirius B (small filled circle) in the 50 year orbit are shown. Note that north is down, as opposed to up in the Chandra and optical images.
Date	26 September 2000 (upload date)
Source	Orbit of Sirius A and B
Author	(Credit: Burnham's Celestial Handbook, 1978, v1, Robert Burnham, Jr.)
Other versions	JPG version

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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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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:59, 15 June 2024		2,100 × 1,869 (361 KB)	OptimusPrimeBot (talk \| contribs)	#Spacemedia - Upload of https://chandra.si.edu/photo/2000/0065/0065_chart.tif via Commons:Spacemedia

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Image title	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!
Author	Chandra X-ray Observatory Center
Copyright holder	http://chandra.harvard.edu/photo/image_use.html
Width	2,100 px
Height	1,869 px
Bits per component	8
Compression scheme	LZW
Pixel composition	Black and white (Black is 0)
Orientation	Normal
Number of components	1
Number of rows per strip	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Exif version	2.21
Color space	Uncalibrated

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File:Orbit of Sirius A and B (2000-0065-more-2).tiff

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998d3f3a27de1a037ab0318fb1d14cac78ddcf09

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26 September 2000

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6c1z8dja9fkd589yqtxd4dtdgz5sk1mt60ohez4ep9yub14gr8

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