WOH S279

Last updated
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
Radius 1,298 [4] [lower-alpha 1]   R
Luminosity 228,000 [4]   L
Surface gravity (log g)+0.0 [4]   cgs
Temperature 3,500 [4]   K
Other designations
WOH S279, 2MASS J05260108-6616191, MSX LMC 844, SP77 44-19, NGC 1948 WBT 2215
Database references
SIMBAD data

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]

Contents

See also

Notes

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

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References

  1. 1 2 3 4 5 6 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. 1 2 3 4 5 Zacharias, N. (2012). "The fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". VizieR On-line Data Catalog. Bibcode:2012yCat.1322....0Z.
  3. 1 2 "Simbad (WOH 279)".
  4. 1 2 3 4 5 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. S2CID   59327105.