Epoch J2000.0 Equinox J2000.0 (ICRS)
|Right ascension||22h 33m 34.64s|
|Declination||+58° 53′ 47.1″|
|Apparent magnitude (V)||10.82 to 11.35|
|B−V color index||2.8|
|Absolute magnitude (MV)||-7.6 (variable)|
|Surface gravity (log g)||−0.5 cgs|
V354 Cephei is a red supergiant star located within the Milky Way. It is an irregular variable located approximately 9,000 light-years away from our Sun, and is currently considered one of the largest known stars, with a radius estimate of 690-1,520 times that of the Sun, or 1,060,000,000 km at its greatest extent. Assuming the upper size estimate is correct, if it were placed in the center of our Solar System, it would extend to 7 AU, between the orbits of Jupiter and Saturn.
- V* V354 Cep -- Pulsating variable Star, database entry, SIMBAD. Accessed on line November 12, 2010.
- V354 Cep, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line November 12, 2010.
- V354 Cephei is in the Cep OB1 association, which has an adopted estimated distance modulus of 12.2. See Tables 1 and 2, Levesque et al. 2005.
- "The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought", Emily M. Levesque, Philip Massey, K. A. G. Olsen, Bertrand Plez, Eric Josselin, Andre Maeder, and Georges Meynet, The Astrophysical Journal 628, #2 (August 2005), pp. 973-985, doi:10.1086/430901, Bibcode: 2005ApJ...628..973L.
- Table 4, Levesque et al. 2005
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