PDS 456
PDS 456 is a quasar in the constellation Serpens.
Most luminous quasar in the nearby universe
Facts
| Type | Quasar |
|---|---|
| Constellation | Serpens |
| Position (J2000) | 17h 28m 19s, −14° 15′ |
| Brightness | magnitude 14.03 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Redshift | z = 0.184 |
| Studied in | 389 scientific papers (SIMBAD) |
When and how to see it
PDS 456 is highest in the sky at midnight in June. From India (about 20° N) it climbs to about 56° above the horizon; from 50° N, to about 26°. 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 Serpens
Everything in Serpens · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits