Alnair
Also known as α Gru · HR 8425
Alnair is a high proper motion star in the constellation Grus, about 100 light-years from Earth.
Facts
| Type | High proper motion star (spectral type B6V) |
|---|---|
| Constellation | Grus |
| Position (J2000) | 22h 08m 13s, −46° 57′ |
| Distance | 100 light-years (its light set off about 100 years ago) |
| Brightness | magnitude 1.71 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Studied in | 315 scientific papers (SIMBAD) |
When and how to see it
Alnair is highest in the sky at midnight in August. From India (about 20° N) it climbs to about 23° above the horizon; from 50° N it never rises. To see it you need the naked eye, even from a town.
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 Grus
Everything in Grus · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits