Astrophysical x-ray source
astronomical object emitting X-rays
RX J1131
L 43-72
4C +37.11
Vela Pulsar
Great Annihilator
GRO J1719-24
RX J0720.4-3125
Beta Camelopardalis
LS 5039
Arp 299
LP 655-48
M82 X-2
P13 (black hole)
MACS0416.1-2403
EX Lupi
BAT99-116
Markarian 205
Abell 2597
Holmberg 15A
R136c
R136a3
Abell 2061
Abell 671
Markarian 421
M85-HCC1
bullet cluster
1RXS J160929.1−210524
Z Camelopardalis
Puppis A
Markarian 1498
Ophiuchus Supercluster
Abell 1033
Alpha Camelopardalis
Kappa Centauri
3C 321
3C 273
Sagittarius A*
Sagittarius A
Abell 400
Chi Carinae
Andromeda Galaxy
Markarian 573
V357 Carinae
l Centauri
Vela X-1
Leo Cluster
3C 9
M33 X-7
I Carinae
Virgo Cluster