IC 10 is a nearby dwarf irregular galaxy that is home to the most massive known stellar black
hole – IC 10 X-1. IC 10 lies approximately 1.8 million light-years
away in the constellation Cassiopeia. It is
the only known starburst galaxy in the Local Group and is particularly
rich in Wolf-Rayet stars, one of which
is the companion of IC 10 X-1.
|IC 10. Credit: Adam
IC 10 was discovered by Lewis Swift in 1889 but not suspected of being extragalactic
until the 1930s.
||6.8' × 5.9'
||R.A. 00h 20m 17.3s,
Dec. +59° 18' 14"
||UGC 192, PGC 1305