V354 Cephei
Star in the constellation Cepheus / From Wikipedia, the free encyclopedia
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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).[7] If it were placed in the center of the Solar System, it would extend to between the orbits of Mars and Jupiter.
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Cepheus |
Right ascension | 22h 33m 34.636s[1] |
Declination | +58° 53′ 47.12″[1] |
Apparent magnitude (V) | 10.82 to 11.35[2] |
Characteristics | |
Spectral type | M2.5 Iab[3] – M3.5 Ib[4] |
B−V color index | +3.18[5] |
Variable type | Lc[2] |
Astrometry | |
Proper motion (μ) | RA: –3.151[1] mas/yr Dec.: –2.398[1] mas/yr |
Parallax (π) | 0.2161 ± 0.0388 mas[1] |
Distance | 13,100+2,030 −1,600 ly (4,019+623 −490 pc)[6] |
Absolute magnitude (MV) | –7.57 (variable)[5] |
Absolute bolometric magnitude (Mbol) | -8.51[7] |
Details | |
Radius | 1,139[7][lower-alpha 1] R☉ |
Luminosity | 76,000[8] – 199,500[7][lower-alpha 2] L☉ |
Surface gravity (log g) | –0.5[5] cgs |
Temperature | 3,615[7] K |
Other designations | |
Database references | |
SIMBAD | data |
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