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List of supernova candidates

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List of supernova candidates

This is a list of supernova candidates, or stars that astronomers have suggested are supernova progenitors. Type II supernova progenitors include stars with at least 10 solar masses that are in the final stages of their evolution. (Prominent examples of stars in this mass range include Antares, Spica,[1] Gamma Velorum,[2] Mu Cephei, and members of the Quintuplet Cluster.[3]) Type Ia supernova progenitors are white dwarf stars that are close to the Chandrasekhar limit of about 1.38 solar masses and are accreting matter from a binary companion star. The list includes massive Wolf–Rayet stars, which may become Type Ib/Ic supernovae.

Supernova progenitor candidates
Identifier Epoch J2000 Constellation Distance
(light years)
Spectral
class
Notes
R. A. Dec.
IK Pegasi 21h 26m 26.7s +19° 22′ 32″ Pegasus 150 A8m:/DA [4][5]
Alpha Lupi 14h 41m 56s –47° 23′ 17″ Lupus 550 B1.5 [6]
Antares 16h 29m 24s –26° 25′ 55″ Scorpius 600 M1.5Iab-b [7]
Betelgeuse 05h 55m 10.3s +07° 24′ 25″ Orion 640 M2Iab [1][8]
Gamma2 Velorum 08h 09m 32.0s −47° 20′ 12″ Vela 800 WC8 [9]
Rigel 05h 14m 32.3s –08° 12′ 06″ Orion 860 B8Ia [10]
Pi Puppis 7h 17m 08s –37° 05′ 51″ Puppis 1,100 K3 Ib
119 Tauri 05h 32m 12.8s +18° 35′ 40″ Taurus 1,700 M2Iab-Ib
RS Ophiuchi 17h 50m 13.2s –06° 42′ 28″ Ophiuchus 1,950–5,200 M2III/D [11][12]
T Coronae Borealis 15h 59m 30.2s +25° 55′ 13″ Corona Borealis 2,000 M3III/D [13]
Mu Cephei 21h 43m 30.5s +58° 46′ 48″ Cepheus 2400 M2Ia [14]
T Pyxidis 09h 04m 41.5s −32° 22′ 48″ Pyxis 3,260 [15][16]
VY Canis Majoris 07h 22m 58.3s −25° 46′ 03″ Canis Major 4,900 M5eIa [8][17]
NML Cygni 20h 46m 25.6s +40° 06′ 59.4″ Cygnus 5,300 M6I [18]
P Cygni 20h 17m 47.2s +38° 01′ 59″ Cygnus 6,000 B1Ia+
Eta Carinae 10h 45m 03.6s −59° 41′ 04″ Carina 7,000–8,000 LBV [19][20]
HD 168625 18h 21m 19.5s −16° 22′ 26″ Sagittarius 7,200 B6Ia [21]
WR 104 18h 02m 04.1s –23° 37′ 41″ Sagittarius 8,000 WC9d/OB [22][23]
IRC+10420 19h 26m 48.1s +11° 21′ 17″ Aquila 10,000–23,000 F8Ia+ [24][25]
Rho Cassiopeiae 23h 54m 23.0s +57° 29′ 58″ Cassiopeia 12,000 G2Ia0e [26]
Wray 17-96 17h 41m 35s –30° 06′ 39″ Scorpius 15,000 B3
Sher 25 11h 15m 07.8s −61° 15′ 17″ Carina ~20,000 B1.5Iab [27]
HD 179821 19h 13m 58.6s +00° 07′ 32″ Aquila 20,000 G5Ia [28][29]
V445 Puppis 07h 37m 56.9s –25° 56′ 59″ Puppis 27,000 [30]
U Scorpii 16h 22m 30.7s –17° 52′ 42″ Scorpius 39,000 [31]
KPD 1930+2752 19h 32m 14.9s +27° 58′ 35″ Cygnus sdB/D [nb 1][32][33]

Notes

References

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