Acrux
Also known as α Cru · HR 4730
Acrux is a star in the constellation Crux.
Facts
| Type | Star (spectral type B0.5IV) |
|---|---|
| Constellation | Crux |
| Position (J2000) | 12h 26m 35s, −63° 05′ |
| Brightness | magnitude 1.28 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Studied in | 150 scientific papers (SIMBAD) |
When and how to see it
Acrux is highest in the sky at midnight in March. From India (about 20° N) it climbs to about 7° 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 Crux
Everything in Crux · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits