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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]
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]
This page was last edited on 14 January 2005, at 15:07 (UTC).; Text is available under the
Placed into an orbit with an apogee of 185,000 kilometres (115,000 mi), Astron was capable of making observations outside the Earth's umbra and radiation belt. Among the most important observations made by Astron were those of SN 1987A supernova from March 4 to March 12, 1987, [ 12 ] and of Halley's Comet in December 1985, the latter of which ...
NGC 1983 (also known as ESO 56-SC133) is an open cluster associated with an emission nebula which is located in the Dorado constellation and part of the Large Magellanic Cloud. It was discovered by John Herschel on 11 November 1836. [4] It has an apparent magnitude of 9.9 [2] and its size is 1.0 arc minutes. [3]
Rep. Jared Moskowitz, D-Fla., mocked Republicans for insisting that they adhere to their internal "three-day rule." That allows lawmakers to ponder bills for three days before a vote.
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