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List of Wolf-Rayet stars

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This is a list of Wolf-Rayet stars, in order of their distance from Earth.[1][2][3]

List

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Milky Way Galaxy

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Star system Star Image Median distance (ly) Spectral type Apparent magnitude (V) Comments and references
Gamma² Velorum A (WR 11/Suhail al Muhlif/Regor) 1096+26
−23
WC8 1.83 The Closest Wolf-Rayet star to Earth. Gamma² Velorum has a O-type companion star.
WR 147 A 2,100±200 WN8h 13.86 + 16.02 Has a B-type companion star.
HD 45166 A 3,232 qWR 9.88 The primary of HD 45166 is currently the only known example of a qWR star and has a B-type companion star.
HD 107969 3,377.2±153.6 WC Center star of NGC 4361 Nebula.
WR 142 4,000 WO2 12.94
HD 326823 (V1104 Scorpii) 4,142 WNpec 9.03
HD 151932 (WR 78) 4,200 WN7h 6.45 - 6.61
EZ Canis Majoris (WR 6) 4,900 WN4-s 6.91
WR 144 5,120 WC4
WR 111 (HD 165763) 5,316+320
−230
WC5 +7.82
WR 140 A (SBC9 1232) 5,600 ± 300 WC7p 6.85
HD 152408 (WR 79a) 5,600 WN9ha 5.81-5.85
WR 93 5,900 WC7
WR 134 6,000 WN6-s 8.08
WR 135 6,000 WC8 8.11
WR 133 A (V1676 Cyg) 6,100 ± 300 WN5o 6.75 - 6.84
HD 152408 (WR 79a) 6,500 WN9ha 5.81-5.85
WR 25 A (HD 93162) 6,500 O2.5If*/WN6 8.80
Apep (WR 70-16) 6523+400
−300
WR + WR
CV Serpentis (WR 113) 6,700 ± 200 WC8d 9.08
WR 136 (HD 192163) 6,700 ± 500 WN6(h)-s 7.50
WR 86 6849 ± 800 WR 9.27
WR 114 7,200 ± 600 WC5 12.02
HD 83535 7,270 WC3 Central star of NGC 2867 Nebula.
Theta Muscae (WR 48a) 7,400 WC5/6 5.53
WR 93b 7,600 ± 500 WO3 15.2
WR 2 8,186 WN2-w 11.33
WR 22 (V429 Carinae) 8,300 ± 700 WN7h 6.42
WR 104 (V5097 Sgr) 8,400 WC9d 13.28 + 15.36
AG Pegasi 9,000 WR 6.0 - 9.4
WR 8 WR
WR 46 (DI Crucis) 9,300 ± 900 WN3p-w 10.83
WR 3 9,458+520
−390
WN3-hw 10.69
WR 128 9,500 WN4(h)-w 10.51
WR 102 9,500 ± 600 WO2 14.10
WR 138 10,000 WR
WR 120 10,000 WN7w + WN3/4 11.93
WR 119 10,500 WC9d 12.06
WR 1 10,500 ± 500 WN4-s 10.54
WR 157 11285.01 WN4.5 Member of Markarian 50 Cluster.
WR 69 11,350 WC9d 9.1
WR 156 11,900 ± 500 WN8h 11.01
WR 9 12,000 ± 600 WC4 10.50
WR 142a 13,000 WR
WR 21a 13,100 ± 700 O3/WN5ha + O3Vz((f*)) 12.661
WR 138a 13,698 WN9h 15.44
CD Crucis (WR 47) 14,000 WN6o 10.81
WR 120–6 WN4 It is the central star of Abell 48 Planetary Nebula.
WR 24 (HD 93131) WN6ha-w 6.48 - 6.50
WR 20a 14,000 ± 1,000 O3If*/WN6 + O3If*/WN6 13.28
WR 142b 15,000 WR
WR 7 (HD 56925) 16,000 WN4-s 11.56
AG Carinae 17,000 ± 1,000 WN11 6.96
WR 12 (V378 Velorum) 19,000 ± 1,000 WN8h 10.78
OAO 1657-415 20,000 Ofpe/WN9 >23
WR 124 (QR Sagittae) 21,000 ± 2,000 WN8h 11.50±0.11
WR 30a 21,917+1,400
−1,090
WO4
WR 121-16 23,190 WN7o/WC 14.02
Cygnus X-3 (WR 145a/V1521 Cyg) 24,135±1,100 WN 4–6
NGC 3603-A1 (WR 43a/HD 97950A1) 24,800 WN6h+WN6h 11.18 Part of NGC 3603 Nebula.
NGC 3603-B (WR 43b/HD 97950B) WN6h 11.33
NGC 3603-C (WR 43c/HD 97950C) WN6h 11.89
NGC 3603 MTT 58 (WR 43-2) O2If*/WN6
HD 97950 (WR 43) 25,000 WR 9.03 It is the central core of a super star cluster within the NGC 3603 H II region (similar to R136 within the Tarantula Nebula).
Arches-B1 (WR 102bc) WN8-9h Part of Arches Cluster.
Arches-F1 (WR 102ad) WN8-9h
Arches-F2 (WR 102aa) WN8–9h

O5–6 Ia+ ||

Arches-F3 (WR 102bb) WN8-9h
Arches-F4 (WR 102al) WN7–8h
Arches-F5 (WR 102ai) WN8-9h
Arches-F6 (WR 102ah) WN8-9h
Arches-F7 (WR 102aj) WN8-9h
Arches-F8 (WR 102ag) WN8-9h
Arches-F9 (WR 102ae) WN8-9h
Arches-F10 (WR 102ab) O7–8 Ia+
Arches-F12 (WR 102af) WN7–8h
Arches-F14 (WR 102ba) WN8-9h
Arches-F16 (WR 102ak) WN8-9h
Arches-F17 (WR 102ac) O5–6 Ia+
WR 42e (2MASS J11144550-115001) O3If*/WN6 14.53
G0.059-0.068 26,000 B0-1Ia+/WNLh
G0.238-0.071 WN11h Present in the Galactic Center region of Milky Way.
WR 102ka (Peony Star) 26,000 Ofpe/WN9
WR 102c WN6 11.6 Part of Quintuplet cluster.
WR 102ea WN9h 8.8
WR 102da WC9?d
WR 102dc WC9d + OB
WR 102ha WC8/9d + OB
WR 102dd WC9d
WR 102hb WN9h
WR 102db WC9?d
WR 102f WC8
WR 102df O6–8 I f (Of/WN?)
WR 102i WN9h
WR 102d WN9h
LHO 79 WC9d
GCIRS 13E (WR 101f) 26,000 WR Located near Galactic Center.
GCIRS 16SW Ofpe/WN9 Located near Galactic Center.
WR 101-2 (CXOGC J174516.1-284909) 26,092 Ofpe/WN9
WR 148 27,000 WN8h + O5V? 10.3
WR 31a (Hen 3-519) 28,000 WN11h 10.85
WR 102e WR
WR 150 28,473+1,700
−1,380
WC5 13.47
HD 826 30,000 WC8 Center Star of NGC 40 Nebula.
WR 102b 31,000 WR
Mercer 30-1 A (WR 46-3 A) 40,000 WR
Mercer 30-7 A WR

Magellanic Clouds

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The Large Magellanic Cloud (LMC) is around 163 kly distant and the Small Magellanic Cloud (SMC) is around 204 kly distant.

Host galaxy Star system Median distance (ly) Spectral type Apparent magnitude (V) Comments and references
LMC LMC195-1 160,000 WO2 15.15
LH 41-1042 WO4 13.95
R145 (HD 269928) 163,000 WN6h + O3.5If*/WN7 12.04
HD 38282 (BAT99-118/Brey 89) WN5-6h + WN6-7h 11.11
BAT99-7 WN4b 13.81
BAT99-59 WR Central star of NGC 2020.
BAT99-123 (Brey 93) WO3 15.204
Melnick 34 (BAT99-116) WN5h + WN5h 13.09
R136a1 (RMC 136a1) WN5h 12.23
R136a2 (RMC 136a2) WN5h 12.34
R136a3 WN5h 12.97
R136c WN5h 12.86
R71 (HD 269006) 164,000 WR 8.7 - 9.9 - 11.2
VFTS 457 O3.5If*/WN7
VFTS 482 O3If*/WN6-A
VFTS 545 O2If*/WN5
VFTS 682 WN5h 16.08
VFTS 1022 O3.5If*/WN7
R134 WR
R146 WN4
BAT99-98 165,000 WN6 13.38
R99 Ofpe/WN10 11.46
SMC SMC AB7 197,000 WN4 13.016
SMC AB8 WO4 12.83
HD 5980 200,000 WN4 8.8 - 11.9

Andromeda Galaxy and Triangulum Galaxy

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The Andromeda Galaxy (M31) is 2.5 Mly distant and the Triangulum Galaxy is around 3.2 Mly distant

Host galaxy Star system Median distance (ly) Spectral type Apparent magnitude (V) Comments and references
Triangulum [BMS2003] 867 2,700,000 O4Iab+O4Ia
Romano's Star WN8h–WN11h 16.5–18.8

Other Galaxies

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Host Galaxy Star system Median distance (ly) Spectral type Apparent magnitude (V) Comments and references
NGC 6822 NGC 6822-WR 12 (LGGS J194513.50-144512.9) 1,540,000 WN4 18.96
IC 1613 DR1 (CAIRNS J010501.61+020420.6) 2,350,000 WO3 19.857 [4]
IC 10 IC 10 X-1 A 2,500,000 ± 0.5 WR Has a Black hole companion.
NGC 300 NGC 300 X-1 A 6,070,000 ± 0.23 WR Has a Black hole companion.
NGC 300 STWR 13 6,070,000 ± 0.23 WO4

See also

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References

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  1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Barry, Don C. (January 1970), "Spectral Classification of a and F Stars", Astrophysical Journal Supplement, 19: 281, Bibcode:1970ApJS...19..281B, doi:10.1086/190209.
  3. ^ Frost, E. B. (December 1924), "Fourteen spectroscopic binaries", Astrophysical Journal, 60: 319–320, Bibcode:1924ApJ....60..319F, doi:10.1086/142868.
  4. ^ Tramper, F.; Gräfener, G.; Hartoog, O. E.; Sana, H.; de Koter, A.; Vink, J. S.; Ellerbroek, L. E.; Langer, N.; Garcia, M.; Kaper, L.; de Mink, S. E. (2013). "On the nature of WO stars: a quantitative analysis of the WO3 star DR1 in IC 1613". Astronomy & Astrophysics. 559: A72. arXiv:1310.2849. doi:10.1051/0004-6361/201322155. ISSN 0004-6361.