Swift J1644+57
Also known as Swift J164449.3+573451
Swift J1644+57 is a galaxy in the constellation Draco.
A star torn apart by a black hole in 2011, which launched a jet towards us
Facts
| Type | Galaxy |
|---|---|
| Constellation | Draco |
| Position (J2000) | 16h 44m 47s, +57° 35′ |
| Redshift | z = 0.353 |
| Studied in | 553 scientific papers (SIMBAD) |
When and how to see it
Swift J1644+57 is highest in the sky at midnight in June. From India (about 20° N) it climbs to about 52° above the horizon; from 50° N, to about 82°.
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 Draco
Everything in Draco · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits