Sirius_A_and_B_Hubble_photo.jpg(369 × 403 pixlar, filstorlek: 179 kbyte, MIME-typ: image/jpeg)

Sammanfattning

Beskrivning
English: This Hubble Space Telescope image shows Sirius A, the brightest star in our nighttime sky, along with its faint, tiny stellar companion, Sirius B. Astronomers overexposed the image of Sirius A [at centre] so that the dim Sirius B [tiny dot at lower left] could be seen. The cross-shaped diffraction spikes and concentric rings around A*, and the small ring around Sirius B, are artifacts produced within the telescope's imaging system. The two stars revolve around each other every 50 years. Sirius A, only 8.6 light-years from Earth, is the fifth closest star system known. The image was taken with Hubble's Wide Field Planetary Camera 2.
Datum
Källa http://www.spacetelescope.org/images/heic0516a/
Skapare NASA, ESA, H. Bond (STScI), and M. Barstow (University of Leicester)
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Licensiering

Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org.
For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
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Sirius A along with its faint, tiny stellar companion, Sirius B (lower left).

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Datum/TidMiniatyrbildDimensionerAnvändareKommentar
nuvarande19 oktober 2019 kl. 11.11Miniatyrbild för versionen från den 19 oktober 2019 kl. 11.11369 × 403 (179 kbyte)BevinKaconReverted to version as of 19:39, 25 August 2010 (UTC) actual size from source
22 januari 2016 kl. 08.26Miniatyrbild för versionen från den 22 januari 2016 kl. 08.262 209 × 2 410 (1,43 Mbyte)PlanetUserhigher resolution (modified from http://www.spacetelescope.org/static/archives/images/pl_original/heic0516a.tif)
25 augusti 2010 kl. 21.39Miniatyrbild för versionen från den 25 augusti 2010 kl. 21.39369 × 403 (179 kbyte)LobStoRprogressive JPEG generated from .TIFF at quality setting 100
29 augusti 2009 kl. 00.06Miniatyrbild för versionen från den 29 augusti 2009 kl. 00.06369 × 403 (143 kbyte)TryphonReverted to version as of 12:42, 25 December 2005: original size; anything bigger is just blown-up from this image.
12 december 2007 kl. 20.34Miniatyrbild för versionen från den 12 december 2007 kl. 20.341 280 × 1 398 (160 kbyte)DENkerhigher quality
25 december 2005 kl. 14.42Miniatyrbild för versionen från den 25 december 2005 kl. 14.42369 × 403 (143 kbyte)SuperborsukThe image of Sirius A and white dwarf Sirius B taken by Hubble Space Telescope. Source: http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/36/image/a

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