Extreme object

GRS 1915+105

GRS 1915+105 is a black hole 28 000 light-years away, weighing 12.4 Suns.

For years the heaviest stellar black hole known in our galaxy, and the first thing in it seen throwing out matter apparently faster than light: a trick of geometry called superluminal motion.

Key facts

Kind

Black hole

Distance

28 000 light-years

Mass

12.40 Suns

See it from here

Too faint for the eye; a telescope, or a long photograph, shows it.

How the map draws it

Drawn as a ring at its measured distance; a black hole has no shape to draw and a pulsar is far too small — the kind of thing, not this exact one.