RSGC1-F02

RSGC1-F02 is a red supergiant located in the RSGC1 open cluster in the constellation of Scutum. Its radius was calculated to be between 1,499[1] and 1,549[3] times that of the Sun (the radius is calculated applying the Stefan-Bolzmann law), making it one of the largest stars discovered so far. This corresponds to a volume 3.37 and 3.72 billion times bigger than the Sun. If placed at the center of the Solar System, its photosphere would engulf the orbit of Jupiter.

RSGC1-F01

Open cluster RSGC1 in which RSGC-F02 is located.
Credit: Spitzer
Observation data
Epoch J2000      Equinox J2000
Constellation Scutum
Right ascension  18h 37m 55.28s[1]
Declination −6° 52′ 48.4″[1]
Characteristics
Apparent magnitude (J) 9.904[1]
Apparent magnitude (H) 6.695[1]
Details
Radius1,128[2] R☉
Luminosity215,000[2] - 363,000[1][3][4] L☉
Temperature3,700[2] K
Other designations
RSGC1-F02
Database references
SIMBADdata

See also

References
  1. Davies, Ben; Figer, Don F.; Law, Casey J.; Kudritzki, Rolf-Peter; Najarro, Francisco; Herrero, Artemio; MacKenty, John W. (2008). "The cool supergiant population of the massive young star cluster RSGC1". The Astrophysical Journal. 676 (2): 1016–1028. arXiv:0711.4757. Bibcode:2008ApJ...676.1016D. doi:10.1086/527350. ISSN 0004-637X. S2CID 15639297.
  2. Humphreys, Roberta M.; Helmel, Greta; Jones, Terry J.; Gordon, Michael S. (August 2020). "Exploring the Mass Loss Histories of the Red Supergiants". The Astronomical Journal: arXiv:2008.01108. arXiv:2008.01108.
  3. Fok, Thomas K. T.; Nakashima, Jun-ichi; Yung, Bosco H. K.; Hsia, Chih-Hao; Deguchi, Shuji (2012-11-20). "Maser Observations of Westerlund 1 and Comprehensive Considerations on Maser Properties of Red Supergiants Associated with Massive Clusters". The Astrophysical Journal. 760 (1): 65. arXiv:1209.6427. Bibcode:2012ApJ...760...65F. doi:10.1088/0004-637X/760/1/65. ISSN 0004-637X. S2CID 53393926.
  4. Emma Bensor (2020). "A new mass-loss rate prescription for red supergiants". Monthly Notices of the Royal Astronomical Society. 492 (4): 5994–6006. arXiv:2001.07222. Bibcode:2020MNRAS.492.5994B. doi:10.1093/mnras/staa255.


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