P Cygni
Also known as P Cyg
P Cygni is a blue supergiant star in the constellation Cygnus, about 6,150 light-years from Earth.
Luminous blue variable star
Facts
| Type | Blue supergiant star (spectral type B1-2Ia-0ep) |
|---|---|
| Constellation | Cygnus |
| Position (J2000) | 20h 17m 47s, +38° 01′ |
| Distance | 6,150 light-years (its light set off about 6,150 years ago) |
| Brightness | magnitude 4.82 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Studied in | 1,208 scientific papers (SIMBAD) |
When and how to see it
P Cygni is highest in the sky at midnight in July. From India (about 20° N) it climbs to about 72° above the horizon; from 50° N, to about 78°. To see it you need the naked eye from a dark site.
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 Cygnus
- Cooling Tower Cluster (M29)
- Cygnus A
- Cygnus X-1
- Fireworks Galaxy
- M39 (NGC 7092)
- North America Nebula
- Pelican Nebula
- Veil Nebula
Everything in Cygnus · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits