RSGC1-F01

RSGC1-F01 is a red supergiant located in the RSGC1 open cluster in the constellation of Scutum. Its radius was calculated to be between 1,435[1] and 1,551[2] times that of the Sun (the radius is calculated by applying the Stefan-Bolzmann law), making it one of the largest stars discovered so far. This corresponds to a volume 2.95 and 3.73 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-F01 is located.
Credit: Spitzer
Observation data
Epoch J2000      Equinox J2000
Constellation Scutum
Right ascension  18h 37m 56.29s[1]
Declination −6° 52′ 32.2″[1]
Characteristics
Apparent magnitude (J) 9.748[1]
Apparent magnitude (H) 6.587[1]
Details
Radius1,435[1]–1,551[2] R☉
Luminosity257,000[2]–263,000[1] L☉
Temperature3,300[2]–3,450[1] K
Other designations
RSGC1-F01, 2MASS J18375629-0652322
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. doi:10.1086/527350. ISSN 0004-637X.
  2. 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. doi:10.1088/0004-637X/760/1/65. hdl:10722/181706. ISSN 0004-637X.


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