Alicante 7

Alicante 7
Observation data (J2000 epoch)
Right ascension18h 44m 29.45s[1]
Declination−03° 30′ 02.4″[1]
Distance19.6 kly (6 kpc[2])
Apparent magnitude (V)not visible
Apparent dimensions (V)~7′[2]
Physical characteristics
Mass~10000[2] M☉
Radius~6 pc[a]
Estimated age16–20 myr
Other designationsRSGC5
Associations
ConstellationScutum
See also: Open cluster, List of open clusters

Alicante 7, also known as RSGC5, (Red Supergiant Cluster 5) is an open cluster rich in red supergiants found in the Scutum-Crux Arm of the Milky Way Galaxy, along with RSGC1, Stephenson 2, RSGC3, Alicante 8, and Alicante 10.[2] Alicante 7 contains 7 red supergiants, making it one of the most massive open clusters known.[3]

  1. ^ a b "Cl Alicante 7". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-10-05.
  2. ^ a b c d Negueruela, I.; González-Fernández, C.; Marco, A.; Clark, J. S. (1 April 2011). "A massive association around the obscured open cluster RSGC3". Astronomy & Astrophysics. 528: A59. arXiv:1102.0028. Bibcode:2011A&A...528A..59N. doi:10.1051/0004-6361/201016102. S2CID 53517711.
  3. ^ Origlia, L.; Dalessandro, E.; Sanna, N.; Mucciarelli, A.; Oliva, E.; Cescutti, G.; Rainer, M.; Bragaglia, A.; Bono, G. (2019). "Stellar population astrophysics (SPA) with the TNG". Astronomy & Astrophysics. 629: A117. arXiv:1908.07779. doi:10.1051/0004-6361/201936283. S2CID 201125229.


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