R136
Super star cluster in the constellation Dorado, in the Large Magellanic Cloud / From Wikipedia, the free encyclopedia
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This article is about the star cluster. For the road in Dublin, see R136 road. For routes 136, see route 136.
R136 (formerly known as RMC 136 from the Radcliffe Observatory Magellanic Clouds catalogue[4]) is the central concentration of stars in the NGC 2070 star cluster, which lies at the centre of the Tarantula Nebula in the Large Magellanic Cloud. When originally named it was an unresolved stellar object (catalogued as HD 38268 and Wolf-Rayet star Brey 82) but is now known to include 72 class O and Wolf–Rayet stars within 5 parsecs (20 arc seconds) of the centre of the cluster.[5] The extreme number and concentration of young massive stars in this part of the LMC qualifies it as a starburst region.[6]
Quick Facts Observation data (J2000.0 epoch), Right ascension ...
R136 | |
---|---|
Observation data (J2000.0 epoch) | |
Right ascension | 05h 38m 42.396s[1] |
Declination | −69° 06′ 03.36″[1] |
Distance | 157 kly (48.5 kpc) |
Apparent magnitude (V) | 9.50 |
Physical characteristics | |
Mass | 90,000[2] M☉ |
Estimated age | 1.5+0.3 −0.7 million years[2] |
Other designations | UCAC2 1803442, SAO 249329, HD 38268, TYC 9163-1014-1, CD-69 324, GC 7114[3] |
Associations | |
Constellation | Dorado |
See also: Open cluster, List of open clusters |
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