List of nearest black holes.

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 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		Stellarclass	Epoch J2000.0		Solar mass (Sun = 1)	Discovery date	Notes and additional references
			System	Component		Right ascension	Declination			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	approximately 0.5 solar masses	—
2	6,100 ± 400	1.90 ± 0.1	Cygnus X-1 (Cyg X-1)	Cyg X-1	BH	19h 58m 21.67595s	+35° 12′ 05.7783″	15±1	April-May 1971	binary star system orbit t = 5.6 d	—
				HDE 226868	O			20-40			—
3	7,800 ± 460	2.39±0.14	V404 Cygni	A	BH	20h 24m 03.83s	+33° 52′ 02.2″	12±3	22 May 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			slightly smaller than the Sun			late G or early K