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R136a1

R136a1 (short for RMC 136a1) is the most massive and luminous star known, at around 291 solar masses (M☉) and around 7.2 million times the Sun's luminosity (L☉). It is a Wolf–Rayet star at the center of R136, the central concentration of stars of the large NGC 2070 open cluster in the Tarantula Nebula (30 Doradus) in the Large Magellanic Cloud. The…

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Apparent magnitude (V)
12.23
B−V color index
0.03
Constellation
Dorado
Declination
−69° 06′ 02.9″
Evolutionary stage
Main sequence
Right ascension
5h 38m 42.39s

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R136a1

Nodes111
Edges110
Triples162
Avg. degree1.98
Density0.018018
Components1

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R136a1

Top relations

related to Luminosity · 18
R136a1 → Along, At, Doradus, Earth, From, If, It, Its, Lyman, MV, O7, Proxima Centauri, R136, R136a2, Solar System, Sun, UV, Venus
related to Future · 17
R136a1 → After, He-ZAMS, Hydrogen, It, LBV, LBVs, LMC, Rayet, Sequence, Stars, The, This, WN, WNE, WNh, Wolf, Zero Age Helium Main
related to Visibility · 16
R136a1 → Africa, Asia, Europe, In, It, Large Magellanic Cloud, LMC, Mexico, NGC, North America, Northern Hemisphere, R136, R136a, South, Tarantula Nebula, This
related to Classification · 13
R136a1 → CNO, Hertzsprung, NIII, NIV, NV, Rayet, Russell, The, This, WN5, WN5h, WNh, Wolf
related to Development · 13
R136a1 → An, As, Eddington, Helium, If, LMC, Models, Rayet, Synthetic, The, The ZAMS, WNh, Wolf
related to Surroundings · 13
R136a1 → AU, Doradus, Earth, For, Large Magellanic Cloud, NGC, R136, R136a2, R136a3, Tarantula Nebula, The, The R136a, WN5h
related to Mass · 11
R136a1 → An, CMFGEN, Current, HST, LMC, LTE, Other, Potsdam Wolf, PoWR, Rayet, This
related to Binary · 9
R136a1 → Another, Chandra X-ray Observatory, HSH95-17, R136, R136a, R136a1/2, R136a3, R136c, X-ray
related to Temperature · 9
R136a1 → AV, EB, F-type, HST WFPC2, R136a2, Sun, The, This, V0
related to Current state · 8
R136a1 → CNO, Despite, It, Over, Rayet, The, Wolf, WR-type

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Important terminology

star stars mass core helium luminosity massive r136 surface cluster hydrogen around r136a spectrum 000 times temperature luminous r136a2 would

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
R136a1Apparent magnitude (V)12.231.00infobox
R136a1B−V color index0.031.00infobox
R136a1ConstellationDorado1.00infobox
R136a1Declination−69° 06′ 02.9″1.00infobox
R136a1Evolutionary stageMain sequence1.00infobox
R136a1Right ascension5h 38m 42.39s1.00infobox
R136a1Spectral typeWN5h1.00infobox
R136a1is amost luminous star known0.90text
adaptive optics or speckle interferometry.South of about the 20th parallel southinstance ofand resolving R136a to detect R136a1 requires a space telescope or sophisticated techniques0.80text
the LMC is circumpolarinstance ofand resolving R136a to detect R136a1 requires a space telescope or sophisticated techniques0.80text
meaning that it can be seeninstance ofand resolving R136a to detect R136a1 requires a space telescope or sophisticated techniques0.80text
R136a1 that are not in hydrostatic equilibriuminstance ofThe classical Eddington luminosity limit is not applicable to stars0.80text

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