File:HST SN 1987A 20th anniversary.jpg
HST_SN_1987A_20th_anniversary.jpg (655 × 512 pixels, file size: 206 KB, MIME type: image/jpeg)
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DescriptionHST SN 1987A 20th anniversary.jpg |
Twenty years ago, astronomers witnessed one of the brightest stellar explosions in more than 400 years. The titanic supernova, called SN 1987A, blazed with the power of 100 million suns for several months following its discovery on Feb. 23, 1987. Observations of SN 1987A, made over the past 20 years by NASA’s Hubble Space Telescope and many other major ground- and space-based telescopes, have significantly changed astronomers' views of how massive stars end their lives. Astronomers credit Hubble's sharp vision with yielding important clues about the massive star's demise. This Hubble telescope image shows the supernova’s triple-ring system, including the bright spots along the inner ring of gas surrounding the exploded star. A shock wave of material unleashed by the stellar blast is slamming into regions along the inner ring, heating them up, and causing them to glow. The ring, about a light-year across, was probably shed by the star about 20,000 years before it exploded. |
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Date | Released: 22 February 2007 | ||||
Source | http://hubblesite.org/newscenter/archive/releases/2007/10/image/a/ (direct link) | ||||
Author | NASA, ESA, P. Challis, and R. Kirshner (Harvard-Smithsonian Center for Astrophysics) | ||||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:26, 7 December 2009 | 655 × 512 (206 KB) | Tryphon (talk | contribs) | Original size; higher resolutions are just artificially blown up. | |
09:07, 22 March 2008 | 2,456 × 1,925 (1.11 MB) | Tohma (talk | contribs) | Higher resolution | ||
17:19, 14 April 2007 | 655 × 512 (206 KB) | Winiar (talk | contribs) | {{Information |Description=Twenty years ago, astronomers witnessed one of the brightest stellar explosions in more than 400 years. The titanic supernova, called '''SN 1987A''', blazed with the power of 100 million suns for several months following its dis |
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Width | 655 px |
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Height | 512 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 1,200 dpi |
Vertical resolution | 1,200 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 10:54, 20 February 2007 |
Color space | Uncalibrated |