List of nearest black holes

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This list contains all known black holes relatively near the Solar System (within our Milky Way galaxy). To make it easier to compare distances, our nearest star aside from the SunProxima Centauri – is about 4.24 light years away and our Milky Way galaxy is approximately 100,000 light years in diameter.

All known nearby black holes are in binary systems, as due to them not emitting any light, it's virtually impossible to detect a solitary black hole aside from its gravitational interaction with a nearby light-emitting object. However, the majority of black holes are not in a binary system, making almost all nearby black holes undetectable.

List[edit]

Distance System Component Notes and additional references
(ly) (kpc) Designation Description Right ascension[1]
(Epoch J2000.0)
Declination[1]
(Epoch J2000.0)
Disco­very
date[2]
Desig­nation Stel­lar
class
Mass
(M☉)
3000 ~0.858 A0620-00 (V616 Mon) Binary star system with orbit t=7.75 h  06h 22m 44.503s[3] −00° 20′ 44.72″[3] 1917 A BH 11.0±1.9 Black hole candidate
B K[4] 0.5±0.3
5400+6900
−1900
1.7±1.4 GRS 1124-683 (GU Muscae) Binary star system with orbit t=10.38 h  11h 26m 26.60s −68° 40′ 32.3″ 1991 Jan 20 A BH 6.95±1.1 Black hole candidate
B K 0.9±0.3
5720±300 1.7±0.1 XTE J1118+480  11h 18m 11s 48° 02′ 13″ 2000 A BH 6–6.5
B M 0.2
6000±375[5] 1.86 ± 0.12[5] Cygnus X-1 (Cyg X-1) Binary star system with orbit t=5.6 d  19h 58m 21.67595s[6] +35° 12′ 05.7783″[6] 1971 April–May Cyg X-1 BH 15±1 The first X-ray source widely accepted to be a black hole.
HDE 226868 O[7] 30±10
7400±1500 2.3±0.46 LB-1 B-type star with orbit t=78.9 d  06h 11m 49.0763s[8] +22° 49′ 32.686″[8] 2019 A BH 68+11
−13
Impossible Black Hole, 68-70x Sun Mass (Space News)
B B 9.2+0.9
−1.2
7800±460 2.39±0.14 V404 Cygni Binary star system with orbit t=6.5 d  20h 24m 03.83s[9] +33° 52′ 02.2″[9] 1989 May 22 A BH 9 The first black hole to have an accurate parallax measurement for its distance from our solar system
B K[1] 0.7 Early K giant star
8100±1000 2.49±0.30 GRO J0422+32 Binary star system with orbit t=5.09 h  04h 21m 42.723s +32° 54′ 26.94″ 1992 Aug 5 A BH 3.97±0.95 May be a massive neutron star
B M1 0.5±0.1
8800±2300 2.7±0.7 GS 2000+25  20h 02m 50s +25° 14′ 11″ 1988 A BH 7.5
B M 0.5
11100±700 3.4±0.2 Cygnus X-3 Binary star system with orbit t=4.8 h  20h 32m 25.766s +40° 57′ 28.26″ 1967 Cyg X-3 BH 15±5
V1521 Cyg WN 30+15
−50

[dubious ]
One of the most luminous stars in the galaxy
11900±3600 3.7±1.1 GRO J1655-40 Binary star system with orbit t = 2.6 d  16h 54m 00.137s −39° 50′ 44.90″ 1994 A BH 5.31±0.07
V1033 Sco F5IV 1.9±0.3
25600±600 7.86±0.2 Sagittarius A* Supermassive black hole  17h 45m 40.0409s −29° 0′ 28.118″ 1974 BH 4100000 Center of galaxy
29700±2700 9.1±0.8 4U 1543-475 Binary star system with orbit t = 26.8 h  15h 47m 08.277s −47° 40′ 10.28″ 1971 A BH 9.4±2.0 Estimated 7.5±1.0 kpc away before Gaia
[clarification needed]
B A2V 2.7±1.0

See also[edit]

References[edit]

  1. ^ a b c Research Consortium on Nearby Stars, GSU (2007-09-17). "The One Hundred Nearest Star Systems". RECONS. Retrieved 2007-11-06. External link in |journal= (help)
  2. ^ Before 1900: earliest certain recorded observation. 1900–1930: first catalogued. After 1930: earliest trigonometric or spectroscopic parallax.
  3. ^ a b Liu, Q. (July 2007), "A Catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition)", Astronomy and Astrophysics, 469 (2): 807–810, arXiv:0707.0544, Bibcode:2007A&A...469..807L, doi:10.1051/0004-6361:20077303
  4. ^ Yungelson, L. (May 2008), "Evolution of low-mass binaries with black-hole components", New Astronomy Reviews, 51 (10–12): 860–868, arXiv:0801.3433, Bibcode:2008NewAR..51..860Y, doi:10.1016/j.newar.2008.03.017
  5. ^ a b Reid, M. (December 2011), "The Trigonometric Parallax of Cygnus X-1", The Astrophysical Journal, 742 (2): 83–88, arXiv:1106.3688, Bibcode:2011ApJ...742...83R, doi:10.1088/0004-637X/742/2/83
  6. ^ a b van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357
  7. ^ Sota, A. (April 2011), "The Galactic O-Star Spectroscopic Survey. I. Classification System and Bright Northern Stars in the Blue-violet at R ~ 2500", The Astrophysical Journal Supplement, 193 (2): 24–74, arXiv:1101.4002, Bibcode:2011ApJS..193...24S, doi:10.1088/0067-0049/193/2/24
  8. ^ a b 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.
  9. ^ a b Cutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally Published in: 2003yCat.2246....0C. 2246. Bibcode:2003yCat.2246....0C.

External links[edit]