Corvus
Crv · genitive Corvi · southern sky
At a glance
- Catalogued stars
- 28
- Visible to the eye
- 28 stars
- Brightest star
- Gienah (2.58)
- Best seen
- March
- Declination span
- -24.7° to -16.5°
- Nearest star
- Alchiba · 48.7 ly
Visible from everywhere south of about 65°N.
When and where to look for Corvus
Corvus crosses the meridian — its highest point in the sky — at local midnight around March, which makes the months from February to April the easiest time to find it in the evening. It spans declinations -24.7° to -16.5°, so visible from everywhere south of about 65°N.
The quickest way to find it is to open the live AR sky map and point your phone at the sky — if Corvus is above your horizon right now, its figure is drawn in the position it genuinely occupies above you.
Brightest stars in Corvus
| Star | Mag | Type | Distance |
|---|---|---|---|
| Gienah4Gam Crv | 2.58 | B8III | 153.6 ly |
| Kraz9Bet Crv | 2.65 | G5II | 145.7 ly |
| Algorab7Del Crv | 2.94 | B9.5V | 86.9 ly |
| 2Eps Crv | 3.02 | K2III | 317.9 ly |
| Alchiba1Alp Crv | 4.02 | F0IV/V | 48.7 ly |
| 8Eta Crv | 4.30 | F2V | 59.6 ly |
Magnitude runs backwards: lower numbers are brighter, and anything below about 6.5 is beyond the naked eye under a dark sky.
What Corvus is made of
The catalogue lists 28 stars within Corvus, of which 28 are magnitude 6.5 or brighter — the limit of what an unaided eye picks up under a genuinely dark sky. The rest need binoculars or a telescope.
Spectral make-up
Spectral class is a temperature ordering, running from O at around 30,000 K down to M below 3,500 K. A constellation is a direction, not a group, so this is simply what happens to lie along that line of sight.
The closest catalogued star in this direction is Alchiba at 48.7 light years. The most distant is HD 104337 at roughly 3,167 light years — stars that appear side by side here are nothing of the sort.