Alderamin (α Cephei) is the brightest star in the constellation Cepheus. It is 49 light-years (ly) away and has an apparent magnitude of 2.45 mag.
| Alderamin | |
|---|---|
| Constellation | Cepheus |
| Right ascension | 21h 18m 34.77s |
| Declination | +62° 35′ 8.1″ |
| Apparent magnitude | 2.45 mag |
| Distance | (49.046 ± 0.081) |
| Bayer designation | α Cephei |
| Bright Star Catalogue | HR 8162 |
| Hipparcos Catalogue | HIP 105199 |
| SAO Catalogue | SAO 19302 |
