Regulus (α Leonis) is the brightest star in the constellation Leo. It is 79 light-years (ly) away and has an apparent magnitude of 1.36 mag.
As a star close to the ecliptic, Regulus is quite often covered by the moon and very rarely by the planets Mercury and Venus. It also forms the Spring Triangle with the stars Arcturus and Spica.
| Regulus | |
|---|---|
| Constellation | Leo |
| Right ascension | 10h 08m 22.31s |
| Declination | +11° 58′ 2″ |
| Apparent magnitude | 1.36 mag |
| Distance | (79.30 ± 0.67) ly |
| Bayer designation | α Leonis |
| Bright Star Catalogue | HR 3982 |
| Hipparcos Catalogue | HIP 49669 |
| SAO Catalogue | SAO 98967 |
