Close-up of the black-hole system GRO J1655-40 (ground-based image): In this one-degree view the black-hole system GRO J1655-40 is marked with a red circle. An arrow indicates the motion of the black hole over the next 100 000 years.
In this one-degree view the black-hole system GRO J1655-40 is marked with a red circle. An arrow indicates the motion of the black hole over the next 100 000 years.