V354 Cephei
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cepheus |
| Right ascension | 22h 33m 34.636s |
| Declination | +58° 53′ 47.12″ |
| Apparent magnitude (V) | 10.82 to 11.35 |
| Characteristics | |
| Spectral type | M2.5 Iab – M3.5 Ib |
| B−V color index | +3.18 |
| Variable type | Lc |
| Astrometry | |
| Proper motion (μ) | RA: –3.151 mas/yr Dec.: –2.398 mas/yr |
| Parallax (π) | 0.2161±0.0388 mas |
| Distance | 12,700+2,200 −1,700 ly (3,900+680 −510 pc) |
| Absolute magnitude (MV) | –7.57 (variable) |
| Absolute bolometric magnitude (Mbol) | -8.51 |
| Details | |
| Radius | 1,139 R☉ |
| Luminosity | 76,000 – 199,500 L☉ |
| Surface gravity (log g) | –0.5 cgs |
| Temperature | 3,615 K |
| Other designations | |
| V354 Cep, 2MASS J22333464+5853470, IRAS 22317+5838 | |
| Database references | |
| SIMBAD | data |
V354 Cephei is a red supergiant star located within the Milky Way. It is an irregular variable located over 13,000 light-years away from the Sun. It has an estimated radius of 1,139 solar radii (792,000,000 km; 5.30 au). If it were placed in the center of the Solar System, it would extend to between the orbits of Mars and Jupiter.