Alioth (ε Ursae Maioris) is the brightest star in the constellation Ursa Major. Alioth has an apparent magnitude of 1.8 mag and is about 83 light-years (ly) away.
It is slightly brighter than Dubhe and Alkaid, making it the brightest star in the constellation Ursa Major, as well as one of the 50 brightest stars in the night sky.
| Alioth | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 12h 54m 1.75s |
| Declination | +55° 57′ 35.4″ |
| Apparent magnitude | 1.77 mag |
| Distance | (82.6 ± 0.4) ly |
| Bayer designation | ε Ursae Maioris |
| Bright Star Catalogue | HR 4905 |
| Hipparcos Catalogue | HIP 62956 |
| SAO Catalogue | SAO 28553 |
