Alzirr
Also known as ξ Gem · HR 2484
Alzirr is a red giant branch star in the constellation Gemini, about 60 light-years from Earth.
Facts
| Type | Red giant branch star (spectral type F5IV-V) |
|---|---|
| Constellation | Gemini |
| Position (J2000) | 6h 45m 17s, +12° 53′ |
| Distance | 60 light-years (its light set off about 60 years ago) |
| Brightness | magnitude 3.36 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Studied in | 237 scientific papers (SIMBAD) |
When and how to see it
Alzirr is highest in the sky at midnight in December. From India (about 20° N) it climbs to about 83° above the horizon; from 50° N, to about 53°. 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 Gemini
Everything in Gemini · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits