WOH S281

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WOH S281 (also known as IRAS 05261-6614) is a red supergiant located in the constellation of Dorado.[1] It is also one of the largest known stars with a radius of 1,376 times that of the Sun. If it was placed at the center of the solar system, its photosphere would reach past the orbit of Jupiter.[2]

WOH S281
Observation data
Epoch J2000      Equinox
Constellation Dorado (LMC)
Right ascension  05h 26m 11.37s
Declination −66° 12′ 11.07″
Apparent magnitude (V) 14.17
Evolutionary stage Red supergiant
Spectral type M3
Apparent magnitude (K) 7.878
Apparent magnitude (R) 13.42
Apparent magnitude (B) 16.77
Apparent magnitude (G) 13.672
Apparent magnitude (J) 9.376
Apparent magnitude (H) 8.359
Radial velocity (Rv)309.64 km/s
Proper motion (μ) RA: 1.358 mas/yr
Dec.: 0.263 mas/yr
Radius1,376[2] R
Luminosity179,000[2] L
Surface gravity (log g)+0.5[2] cgs
Temperature3,200[2] K
Other designations
WOH S281, IRAS 05261-6614, 2MASS J05261135-6612111, UCAC2 2673201
Database references

References[change | change source]

  1. "Simbad (WOH 281)".
  2. 2.0 2.1 2.2 2.3 2.4 Groenewegen, Martin A. T.; Sloan, Greg C. (2018). "Luminosities and mass-loss rates of Local Group AGB stars and Red Supergiants". Astronomy & Astrophysics. 609: A114. arXiv:1711.07803. Bibcode:2018A&A...609A.114G. doi:10.1051/0004-6361/201731089. ISSN 0004-6361.