List of nearest black holes
This list contains all known black holes near the Solar System (within Milky Way galaxy). To make it easier to compare distances - our nearest star except Sun - Proxima Centauri is about 4.24 light-years away and our Milky Way galaxy is 100,000 light years in diameter.
List
| # | Distance Light-years (±err) |
Distance kiloparsecs (±err) |
Designation | Stellar class | Epoch J2000.0 | Solar mass (Sun = 1) |
Discovery date[1] | Notes and additional references | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| System | Component | Right ascension[2] | Declination[2] | System | Component | ||||||
| 1 | 2,800 | 0.858 | A0620-00 (V616 Mon) | A | BH | — | — | 11.0±1.9 | — | binary star system orbit t = 7.75 hr |
Black hole candidate |
| B | K[2] | approximately 0.5 solar masses | — | ||||||||
| 2 | 6,100 ± 400 | 1.90 ± 0.1 | Cygnus X-1 (Cyg X-1) | Cyg X-1 | BH | — | — | 15±1 | — | binary star system orbit t = 5.6 d |
— |
| HDE 226868 | O[2] | 20-40 | — | ||||||||
| 3 | 7,800 ± 460 | 2.39±0.14 | V404 Cygni | A | BH | — | — | 12±3 | 22.05.1989 | binary star system orbit t = 6.5 d |
The first black hole to have an accurate parallax measurement for its distance from our solar system |
| B | G[2] | slightly smaller than the Sun | late G or early K | ||||||||
See also
References
- ↑ Before 1900: earliest certain recorded observation. 1900–1930: first catalogued. After 1930: earliest trigonometric or spectroscopic parallax.
- 1 2 3 4 5 Research Consortium on Nearby Stars, GSU (2007-09-17). "The One Hundred Nearest Star Systems". RECONS. Retrieved 2007-11-06. External link in
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