Robert Makemson Guide to Astronomy in Jacksonville

Black Holes

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List of black hole candidates

 

Stellar-mass black holes in binary star systems
detectable due to interactions with the companion star (black hole mass, 3-20 solar masses)

candidate des.
visible star des.
R.A.
dec.
distance [light years] companion star V magnitude
and spectrum
period [hrs] and
(semimajor axis [km])
mass [in MSun] of
black hole and
(companion star)
black hole circumference [km]
RX J0042.3+4115 00h42m22.94s
+4115'34.0"
2,500,000
3U 0042+32 00h44m50.4s
+3301'17"

G
278
(<20,000,000)
XTE J0421+560
CI Cam
04h19m41s
+5600'00"

B e I
GRO J0422+32
Nova Per 1992
04h21m46.9s
+3254'36"
6,500 22
M2 V
5.0918
(1,800,000)
4.30.7
(0.45)
80
LMC X-3 05h38m56.4s
-6405'01"
180,000 16.7
B3 Ve
40.9150
(9,600,000)
7.61.6
(4.5)
140
LMC X-1
R148
05h39m38.7s
-6944'36"
180,000 14
O7 III-V
101.491
(27,000,000)
73
(35)
130
A 0620-00
Nova Mon 1975
06h22m44.5s
-0020'45"
2,700 18
K4 V
7.7524
(3,100,000)
10.82.1
(0.6)
200
GRS 1009-45
Nova Vela 1993
10h13m36.3s
-4504'32"
10,000
K8 V
6.8449
(2,100,000)
4.20.6?
(0.6?)
80
XTE J1118+480
KV Uma
11h18m10.79s
+4802'11.2"
14
K7-M0 V
4.0783
(1,700,000)
6.50.4
(0.3)
120
GRS 1124-683
Nova Muscae 1991
11h26m26.7s
-6840'33"
3,000 20
K5 V
10.3825
(3,400,000)
7.30.9
(1.0)
140
GS 1354-645
BW Cir
13h58m09.92s
-6444'04.9"
16.9
4U 1543-47
IL Lup
15h47m08.6s
-4740'09"
13,000 17
A2 V
26.7938
(7,200,000)
9.41.0
(2.7)
170
XTE J1550-564 15h50m58.78s
-5628'35.0"
8,500 16.0
K3 III
37.044
(8,600,000)
9.61.2
(0.9)
180
A1524-617
KZ TrA
16h32m16.8s
-6727'43"
18.5
4U 1630-47
Nor X-1
16h34m01.61s
-4723'32"
33,000
XTE J1650-500 16h50m01.0s
-4957'45"
?
G/K
5.09
(2,100,000)
8.2
?
150
GRO J1655-40
Nova Sco 1994
16h54m00.2s
-3950'45"
10,000 14.4
F4IV
62.926
(11,000,000)
6.30.3
(2.4)
120
GRS 1659-487
GX 339-4
17h02m49.4s
-4847'22"
13,000
F8-G2 III
14.8
(3,800,000)
5.80.5
?
110
H 1705-250
Nova Oph 1977
17h08m14.2s
-2505'32"
33,000 21
K5 V
12.5
(3,700,000)
7.01.3
(0.3?)
130
XTE J1709-267 17h09m
-2642'
GRS 1716-249
V2293 Oph
17h19m36.9s
-2501'03"
7,500
M0-5 V
>4.9
?
>90
XTE J1720-318 17h20m
-3148'
KS 1730-31 17h30m
-31
XTE J1739-302 17h39m
-3012'
GRS 1737-31 17h40m09s
-3102'24"
H 1741-322 17h41m
-32
EXS 1737.9-2952
17h41m06s
-2953'
30,000
GRS 1739-278 17h42m00.03s
-2744'52.7"
32,000 23.2
>F5 V
1E 1740.7-2942
17h44m03s
-2943'25"
30,000 304.8
(<20,000,000)
H 1743-32 17h45m02s
-3213'36"
XTE J17464-3213 17h46m15.61s
-3213'59.9"
XTE J1748-288 17h48m
-2848'
RX J1749.8-3312 17h49m50.6s
-3111'55"
XTE J1755-324 17h55m
-3224'
4U 1755-338
V4134 Sgr
17h58m40.0s
-3348'27"
18.8
4.4
(<1,400,000)
GRS 1758-258
18h01m12.3s
-2544'36"
26,000 K 442.8
(<30,000,000)
SAX J1805.5-246 18h05m34s
-2030'48"
XTE J1806-246 18h06m
-2436'
XTE J1819-254
V4641 Sgr
18h19m21.58s
-2524'25.1"
32,000
B9 III
67.6152
(13,000,000)
7.10.3
(3.1)
130
RX J1826.2-1450
LS 5039
18h26m15.03s
-1450'53.6"
11.23
O6.5 Vf
98.81
(<10,000,000)
EXO 1846-031 18h49m17.1s
-0303'43.7"
XTE J1856+053 18h56m39s
+0519'44"
XTE J1859+226
V404 Vul
18h58m41.5s
+2239'30"

G5
9.17
(3,500,000)
9.82.2
(<1.5)
180
XTE J1901+014 19h01m41s
+0126'18"
XTE J1908+094 19h08m53.077s
+0923'04.90"
SS433
V1343 Aql
19h11m49.48s
+0458'57.8"
16,000 14.2
A I
314.09
(51,000,000)
115
(19)
200
GRS 1915+105
XN Aql 1992
19h15m11.6s
+1056'45"
39,000
K-M III
820
(77,000,000)
144
(1.5)
260
4U 1918+146 19h20m17s
+1442'19"
Cygnus X-1
HDE 226868
19h58m21.7s
+3512'06"
7,000 8.9
09.7 Iab
134.396
(33,000,000)
165
(31)
300
4U 1957+115
V1408 Aql
19h59m24.0s
+1142'30"
18.7
9.3
(<2,000,000)
GS 2000+250
Nova Vul 1988
20h02m49.6s
+2514'11"
6,500 21
K5 V
8.2582
(2,900,000)
7.50.3
(0.3)
140
XTE J2012+381 20h12m37.7s
+3811'01"
GS 2023+338
V404 Cygni
20h24m03.8s
+3352'04"
8,000 12.7
K0 III
155.31
(23,000,000)
11.71.7
(0.6)
220
2S 2318+62 23h18m
+62

Isolated stellar-mass black holes
detectable due to gravitational lensing of background light (black hole mass, 3-20 solar masses)

candidate des.
visible star des.
R.A.
dec.
distance
(light years)
black hole mass
(MSun)
black hole
circumference
(km)
SN 1997D
(in NGC 1536)
04h11m06s
-5629'
46,000,000 3 55
MACHO-98-BLG-6 17h57m32.8s
-2842'45"
6,500 6 110
MACHO-96-BLG-5 18h05m02.5s
-2742'17"
6,500? 6 110
MACHO-99-BLG-22
OGLE-1999-BUL-32
18h05m05.35s
-2834'42.5"
3-100 60-1,900

Intermediate mass black holes
massive black holes in galactic cores or star clusters (black hole mass, 100 to 100,000 solar masses)

galaxy des. R.A.
dec.
distance
(light years)
galaxy type black hole mass
(MSun)
black hole
circumference
(km)
M-110
NGC 205
00h40m25s
+4141'16"
2,300,000 E6 90,000 1,700,000
M-31 G1
NGC 224
00h42m44s
+4116'08"
(cluster) 20,000 370,000
NGC 253 00h47m33s
-2517'18"
10,000,000 S5 100-10,000 2,000-200,000
NGC 253 00h47m33s
-2517'18"
10,000,000 S5 100-10,000 2,000-200,000
NGC 253 00h47m33s
-2517'18"
10,000,000 S5 100-10,000 2,000-200,000
NGC 253 00h47m33s
-2517'18"
10,000,000 S5 100-10,000 2,000-200,000
M-33 Triangulum
NGC 598
01h33m51s
+3039'36"
2,600,000 Scd 50,000 900,000
NGC 1313 X-1 03h18m19.99s
-6629'10.97"
12,000,000 S 100-1,000 2,000-20,000
NGC 1313 X-2 03h18m22.34s
-6636'03.68"
12,000,000 S 100-1,000 2,000-20,000
M-82
NGC 3034
09h55m54s
+6940'57"
12,000,000 P 460 8,500
M-15
NGC 7078
21h29m58.3s
+1210'01"
33,000 (cluster) 3,200 60,000

Galactic core black holes
supermassive black holes in galactic cores (black hole mass, millions to billions of solar masses)

galaxy des. R.A.
dec.
distance
(light years)
galaxy type black hole mass
(MSun)
black hole
circumference
(AU)
M-32
NGC 221
00h42m41.9s
+4051'52"
2,600,000 E2 2,500,000 0.3
M-31 Andromeda
NGC 224
00h42m44.3s
+4116'10"
2,500,000 Sb 45,000,000 5.5
NGC 821 02h08m21.14s
+1059'41.7"
79,000,000 E6 37,000,000 4.5
3C 66B 02h23m11.4s
+4300'31"
280,000,000 1,000,000,000 120
3C 66B 02h23m11.4s
+4300'31"
280,000,000 1,000,000,000 120
NGC 1023 02h40m23.90s
+3903'46.3"
37,000,000 S0 44,000,000 5.5
M-77
NGC 1068
02h42m40.7s
-0000'47"
49,000,000 Sb 15,000,000 1.9
NGC 1097 02h46m19.06s
-3016'29.7"
47,000,000 SB 5,000,000 0.6
Fornax A
NGC 1316
03h22m41.6s
-3712'34"
53,000,000 Sab
NGC 1566 04h20m00.7s
-5456'17"
50,000,000 S(B)b+
PKS 0521-365 05h22m57.98s
-3627'30.9"
670,000,000 450,000,000 55
PKS 0548-322 05h50m40.5s
-3216'16"
840,000,000 140,000,000 17
EXO 0706.1+5913 07h10m30.1s
+5908'21"
1,500,000,000 180,000,000 20
APM 08279+5255 08h31m41.60s
+5245'16.8"
12,000,000,000
NGC 2778 09h12m24.35s
+3501'39.4"
75,000,000 E 14,000,000 1.7
NGC 2787 09h19m18.90s
+6912'11.9'
24,000,000 SB(r)0+ 41,000,000 5
M-81
NGC 3031
09h55m33s
+6903'55"
13,000,000 SA(s)ab 68,000,000 8
NGC 3079 10h01m58.53s
+5540'50.1"
S5
Spindle
NGC 3115
10h05m13.98s
-0743'06.9"
32,000,000 E6 1,000,000,000 120
NGC 3245 10h27m18.52s
+2830'24.8"
68,000,000 SB(s)b 210,000,000 26
NGC 3377 10h47m42.40s
+1359'08.3"
37,000,000 E5 100,000,000 12
M-105
NGC 3379
10h47m49.60s
+1234'53.9"
35,000,000 E1 100,000,000 12
NGC 3384 10h48m16.90s
+1237'42.9"
38,000,000 SB(s)0- 16,000,000 2
Mrk 421 11h04m27s
+3812'32"
370,000,000 190,000,000 25
NGC 3608 11h16m59.07s
+1808'54.6"
75,000,000 E2 190,000,000 25
Mrk 180 11h36m26s
7009'29"
550,000,000 160,000,000 20
NGC 3894 11h48m50.36s
+5924'56.4"
E4
NGC 3998 11h55m20s
+5544'06"
70,000,000 S0 20,000,000 2.5
NGC 4151 12h10m32.579s
+3924'20.63"
50,000,000 P 10,000,000 1.2
M-106
NGC 4258
12h18m57.5s
+4718'14"
23,000,000 Sb+ 39,000,000 4.8
NGC 4261 12h19m23.2s
+0549'29"
100,000,000 E2 520,000,000 65
NGC 4291 12h20m17.71s
+7522'17.9"
85,000,000 E 310,000,000 40
NGC 4350 12h23m57.78s
+1641'33.4"
L
NGC 4342 12h23m40.31s
+0702'52.5"
50,000,000 S0 300,000,000 40
M-84
NGC 4374
12h25m03.7s
+1253'13"
50,000,000 E1 1,300,000,000 160
NGC 4438 12h27m45.6s
+1300'32"
Sap
NGC 4459 12h29m00.03s
+1358'42.8"
52,000,000 E2 70,000,000 9
NGC 4473 12h29m48.87s
+1325'45.7"
51,000,000 E5 110,000,000 14
NGC 4486B 12h30m31.85s
+1229'26.0"
50,000,000 E0 570,000,000 70
M-87 Virgo A
NGC 4486
12h30m49.5s
+1223'28"
52,000,000 E1 3,000,000,000 370
NGC 4579 12h35m12s
+1205'36"
55,000,000 S 2,000,000 0.25
NGC 4564 12h36m26.99s
+1126'21.5"
49,000,000 E6 56,000,000 7
NGC 4596 12h39m55.9s
+1010'35"
55,000,000 78,000,000 10
M-104 Sombrero
NGC 4594
12h39m59.3s
-1137'23"
30,000,000 Sb- 500,000,000 60
M-60
NGC 4649
12h43m39.7s
+1133'10"
55,000,000 E1 2,000,000,000 250
NGC 4697 12h48m35.91s
-0548'03.1"
38,000,000 E6 170,000,000 21
NGC 4742 12h51m47.92s
-1027'17.1"
51,000,000 E4 14,000,000 1.7
NGC 4791 12h54m43.97s
+0803'10.7"
200,000,000 25
NGC 4945 13h05m27.6s
-4929'03"
12,000,000 Scd 1,400,000 0.17
NGC 5033 13h11m08s
+3651'48"
61,000,000 S 510,000,000 60
Centaurus A
NGC 5128
13h25m27.7s
-4301'09"
10,000,000 S0 240,000,000 30
M-51 Whirlpool
NGC 5194
13h29m52.4s
+4711'41"
23,000,000 Sc
MCG-6-30-15 13h33m01.97s
-3402'44"
150,000,000 100,000,000 13
NGC 5845 15h06m00.90s
+0138'01.4"
84,000,000 E3 240,000,000 30
AP Lib 15h17m41.81s
-2422'19.5"
600,000,000 120,000,000 15
Arp 220 15h34m57.3s
+2330'12"
250,000,000 S?
NGC 6251 16h32m31.97s
+8232'16.5"
300,000,000 E2 530,000,000 65
Mrk 501 16h53m53s
+3945'36"
420,000,000 1,600,000,000 200
J1728.2+5013
=1 Zw 187
17h28m13.9s
+5013'10"
670,000,000 72,000,000 9
Milky Way 17h45m37.1991s
-2856'10.221"
26,000 Sb+ 3,000,000 0.4
3C 371 18h06m05.6s
+6949'28.1"
620,000,000 320,000,000 40
NGC 7052 21h18m33.13s
+2626'48.7"
190,000,000 E4 330,000,000 40
PKS 2201+044 22h04m17.7s
+0440'03"
330,000,000 130,000,000 16
IC 1459 22h57m11s
-3629'00"
43,000,000 E3 2,500,000,000 300
NGC 7457 23h01m00.05s
+3008'43.4"
43,000,000 Ep 3,500,000 0.4
1ES 2344+514 23h47m04.8s
+5142'18"
540,000,000 630,000,000 80