WOH S279

WOH S279 is a red supergiant located in the constellation of Dorado.[3] It is currently among the largest known stars with an radius of about 1,300 solar radii. If placed at the center of the solar system, its photosphere would engulf the orbit of Jupiter.[4]

WOH S279
Observation data
Epoch J2000      Equinox
Constellation Dorado (LMC)
Right ascension  05h 26m 01.1049s[1]
Declination −66° 16 19.058[1]
Apparent magnitude (V) 12.515[2]
Characteristics
Evolutionary stage Red supergiant
Spectral type M[3]
Apparent magnitude (B) 14.205[2]
Apparent magnitude (G) 11.8867[1]
Apparent magnitude (J) 8.990[2]
Apparent magnitude (H) 8.103[2]
Apparent magnitude (K) 7.748[2]
Astrometry
Radial velocity (Rv)304.84 ± 0.30[1] km/s
Proper motion (μ) RA: 1.635[1] mas/yr
Dec.: 0.369[1] mas/yr
Details
Radius1,298[4][lower-alpha 1] R
Luminosity228,000[4] L
Surface gravity (log g)+0.0[4] cgs
Temperature3,500[4] K
Other designations
WOH S279, 2MASS J05260108-6616191, MSX LMC 844, SP77 44-19, NGC 1948 WBT 2215
Database references
SIMBADdata

See also

Notes

  1. The radius is calculated with the Stefan-Boltzmann law, using the bolometric luminosity and effective temperature of WOH S279:

References

  1. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
  2. Zacharias, N. (2012). "The fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". VizieR On-line Data Catalog. Bibcode:2012yCat.1322....0Z.
  3. "Simbad (WOH 279)".
  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.
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