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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]
This is the list of notable stars in the constellation Dorado, sorted by decreasing brightness. Name B G. Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes ...
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]
BAT99-123, also known as Brey 93, is a rare WO-type (oxygen sequence) Wolf–Rayet star located in the Large Magellanic Cloud, about 160,000 light years away in Dorado. BAT99-123 was the first WO star discovered in the LMC, and only 3 are known to exist in the galaxy, the other two being LH 41-1042 and LMC195-1 .
N119 (formally known as LHA 120-N 119) is a spiral-shaped H II region in the Large Magellanic Cloud.Its dimensions are large, at 131 x 175 pc (430 × 570 ly). [2] It contains several luminous stars including S Doradus, LH41-1042, and LMC195-1.
The NGC 1566 Group of Dorado contains H I with M HI = 3.5 × 10 10 M ⊙ of which 40% alone comes from the NGC 1566 galaxy. [5] More than half of its members are outside its virial radius of 580 kpc which suggests this group is a young non-virialized group. The 2005 Kilborn et al. set of confirmed NGC 1566 Group members (within the Dorado Group ...
Henize 70 was first observed in 1950 in a survey of bright planetary nebulae.Based on appearance it was proposed that it might be a supernova remnant. [7] In 1956, it was added to a catalogue of Hα emission stars and nebulae by Karl Gordon Henize, where it was described as an emission nebula rather than a planetary nebula.