GRO J1655-40

Black Hole

A stellar-mass black hole in a binary system, notable for jets that appeared to move faster than light (an illusion of perspective).

Facts

TypeBlack Hole
Black hole typeStellar
Distance from Earth11,000 ly
Diameter37 km
Mass1.25 × 10^31 kg
Apparent magnitude14
Redshift0
HemisphereSouthern
Discovered1994

GRO J1655-40 in context

Its mass is 6.3 times the mass of the Sun.

The light reaching us from GRO J1655-40 tonight left it around 11,000 years ago.

It has been on record since 1994.

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