Abell 1201 black hole
Abell 1201 black hole is an ultramassive black hole in a galaxy cluster's central galaxy in the constellation Leo, about 2.7 billion light-years (z = 0.169) from Earth.
One of the most massive black holes known, about 33 billion times the Sun's mass, in the giant galaxy at the heart of the galaxy cluster Abell 1201. It was weighed by how its gravity bends the light of a galaxy behind it (gravitational lensing), the first black hole found this way (Nightingale et al. 2023).
Facts
| Type | Ultramassive black hole in a galaxy cluster's central galaxy |
|---|---|
| Constellation | Leo |
| Position (J2000) | 11h 12m 54s, +13° 26′ |
| Distance | 2.7 billion light-years (z = 0.169) |
When and how to see it
Abell 1201 black hole is highest in the sky at midnight in March. From India (about 20° N) it climbs to about 83° above the horizon; from 50° N, to about 53°.
Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.
For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.
More in Leo
Data: · Deep Sky Monitor's own notes · Data sources & credits