Cloverleaf Quasar
Also known as H1413+117
Cloverleaf Quasar is a quasar in the constellation Boötes.
Quasar lensed into four images
Facts
| Type | Quasar |
|---|---|
| Constellation | Boötes |
| Position (J2000) | 14h 15m 46s, +11° 29′ |
| Brightness | magnitude 17.23 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Redshift | z = 2.51969 |
| Studied in | 685 scientific papers (SIMBAD) |
When and how to see it
Cloverleaf Quasar is highest in the sky at midnight in April. From India (about 20° N) it climbs to about 81° above the horizon; from 50° N, to about 51°. To see it you need a large telescope or long-exposure photos.
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 Boötes
Everything in Boötes · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits