Imai
Also known as δ Cru · HR 4656
Imai is a pulsating variable star in the constellation Crux, about 460 light-years from Earth.
Facts
| Type | Pulsating variable star (spectral type B2IV) |
|---|---|
| Constellation | Crux |
| Position (J2000) | 12h 15m 08s, −58° 44′ |
| Distance | 460 light-years (its light set off about 460 years ago) |
| Brightness | magnitude 2.75 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Studied in | 224 scientific papers (SIMBAD) |
When and how to see it
Imai is highest in the sky at midnight in March. From India (about 20° N) it climbs to about 11° 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