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The young cluster R136.jpg
R136a3 is the bright star at lower left of the center.
Observation data
Epoch J2000      Equinox J2000.0
Constellation Dorado
Right ascension 05h 38m 42.33s
Declination −69° 06′ 03.3″
Apparent magnitude (V) 12.97
Spectral type WN5h
Absolute magnitude (MV) -7.4[1]
Mass 130[2] M
Radius 19[2] R
Luminosity ~3,200,000[2] L
Temperature 56,000[2] K
Database references

R136a3 is a Wolf–Rayet star in R136, a massive star cluster located in Dorado. It is located near R136a1, the most massive and luminous star known. R136a3 masses at 130 M[2] and is 3.2 million times brighter than the Sun.[2]

See also[edit]


  1. ^ Doran, E. I.; Crowther, P. A.; De Koter, A.; Evans, C. J.; McEvoy, C.; Walborn, N. R.; Bastian, N.; Bestenlehner, J. M.; Gräfener, G.; Herrero, A.; Köhler, K.; Maíz Apellániz, J.; Najarro, F.; Puls, J.; Sana, H.; Schneider, F. R. N.; Taylor, W. D.; Van Loon, J. Th.; Vink, J. S. (2013). "The VLT-FLAMES Tarantula Survey. XI. A census of the hot luminous stars and their feedback in 30 Doradus". Astronomy & Astrophysics 558: A134. arXiv:1308.3412. Bibcode:2013A&A...558A.134D. doi:10.1051/0004-6361/201321824. 
  2. ^ a b c d e f Hainich, R.; Rühling, U.; Todt, H.; Oskinova, L. M.; Liermann, A.; Gräfener, G.; Foellmi, C.; Schnurr, O.; Hamann, W.-R. (2014). "The Wolf-Rayet stars in the Large Magellanic Cloud. A comprehensive analysis of the WN class". Astronomy & Astrophysics 565: A27. arXiv:1401.5474. Bibcode:2014A&A...565A..27H. doi:10.1051/0004-6361/201322696.