Image:HST SN 1987A 20th anniversary.jpg
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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: February 22th, 2007 |
| Author |
NASA, ESA, P. Challis, and R. Kirshner (Harvard-Smithsonian Center for Astrophysics) |
| Permission (Reusing this image) |
http://hubblesite.org/copyright/ |
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This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).
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| Date/Time | Dimensions | User | Comment | |
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| current | 09:07, 22 March 2008 | 2,456×1,925 (1.11 MB) | Tohma | (Higher resolution ) |
| 17:19, 14 April 2007 | 655×512 (206 KB) | Winiar | ({{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) |
