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SN 1987A was a type II supernova in the Large Magellanic Cloud, a dwarf satellite galaxy of the Milky Way. It occurred approximately 51.4 kiloparsecs (168,000 light-years ) from Earth and was the closest observed supernova since Kepler's Supernova in 1604.
It was the progenitor of supernova 1987A. The star was originally charted by the Romanian-American astronomer Nicholas Sanduleak in 1970, but was not well studied until identified as the star that exploded in the first naked eye supernova since the invention of the telescope, [1] when its maximum reached visual magnitude +2.8. [3]
Ian Keith Shelton (born 30 March 1957) is a Canadian astronomer who discovered SN 1987A, the first modern supernova close and bright enough to be visible to the naked eye. Born in Winnipeg , Manitoba , Canada, Shelton received his B.Sc. in 1979 from the University of Manitoba and in 1981 began his professional career working as Resident ...
The closest supernova observed since the invention of the telescope, [17] Supernova 1987A, occurred in the outskirts of the Tarantula Nebula. [18] There is a prominent supernova remnant enclosing the open cluster NGC 2060. Still, the remnants of many other supernovae are difficult to detect in the complex nebulosity. [19]
The classic example of a Type IIb supernova is SN 1993J, [41] [42] while another example is Cassiopeia A. [43] The IIb class was first introduced (as a theoretical concept) by Woosley et al. in 1987, [44] and the class was soon applied to SN 1987K [45] and SN 1993J. [46]
The JWST is scheduled to observe SN 1987A for 7 1/2 hours on 2022-07-16 UTC. I don't have recent editing experience; would one of you care to add this to the article?
SN 1993J is a supernova observed in Bode's Galaxy. It was discovered on 28 March 1993 by F. Garcia in Spain . [ 3 ] At the time, it was the second-brightest type II supernova observed in the twentieth century behind SN 1987A , [ 4 ] peaking at a visible apparent magnitude of 10.7 on March 30, with a second peak of 10.86 on April 18.
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