File:2MASS Image of 47 Tucanae.jpg
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[edit]Description2MASS Image of 47 Tucanae.jpg |
English: 47 Tucanae is the second brightest "globular cluster" visible from Earth, though it can only be seen from the Southern Hemisphere. Globular clusters are particularly large, dense collections of thousands, even millions of stars that are so tightly bound together by gravity that they stay together for billions of years.
Located about 20,000 light years from Earth, 47 Tucanae remains impressive due to its sheer size, containing around a million stars. Only a small fraction of the very brightest ones can be seen in this image. About half of its stars fall within a region 25 light years across though the entire cluster spans well over 100 light years. This image is 34 arcminutes across, just over half a degree. The infrared colors of these stars are very uniform, showing almost no variation. |
Date | |
Source | http://www.ipac.caltech.edu/2mass/gallery/showcase/47_tuc/index.html |
Author | 2MASS/T. Jarrett |
Copyright notice: http://www.ipac.caltech.edu/2mass/gallery/showcase/copyright.html
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[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:25, 8 May 2015 | 2,034 × 2,038 (1.12 MB) | Jcpag2012 (talk | contribs) | cropped from the frame | |
19:18, 30 June 2011 | 2,100 × 2,200 (1.03 MB) | Spitzersteph (talk | contribs) |
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13 April 2003
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