Draft:V Cygni

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Draft:V Cygni
V Cygni
Observation data
Epoch J2000      Equinox ICRS
Constellation Cygnus
Right ascension 20h 41m 18.27s[1]
Declination +48° 08′ 28.8″[1]
Apparent magnitude (V) 7.70
Characteristics
Evolutionary stage Asymptotic giant branch[2]
Spectral type C7,4eJ
Variable type Mira[3]
Astrometry
Radial velocity (Rv)3[1] km/s
Proper motion (μ) RA: -7.239[1] mas/yr
Dec.: -13.582[1] mas/yr
Parallax (π)2.1819±0.1609 mas
Distance420[4] pc
Details
Radius770[4] R☉
Luminosity6,600[4] L☉
Temperature1,875[4] K
Other designations
V Cygni, Nova Cygni 1974, 2MASS J20411826+4808288, ASASSN-V J204118.25+480829.2, TIC 286094845, HIP 102082, IRAS 20396+4757, IRC +50338, Gaia DR3 2167591280437990656[1]
Database references
SIMBADdata

V Cygni (also known as Nova Cygni 1974) is a carbon star in the constellation Cygnus. It is a Mira variable with an apparent magnitude that varies between 7.7 and 13.9.[3]

References

  1. ^ a b c d e f "V Cygni". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2026-06-15.
  2. ^ Safonov, Boris S.; Zheltoukhov, Sergey G.; Tatarnikov, Andrey M.; Strakhov, Ivan A.; Shenavrin, Victor I. (2025-02-12). "Disk in the Circumstellar Envelope of Carbon Mira V Cygni". The Astronomical Journal. 169 (3): 140. arXiv:2501.10092. Bibcode:2025AJ....169..140S. doi:10.3847/1538-3881/adaaf3.
  3. ^ a b "VSX : Detail for V Cyg". vsx.aavso.org. Retrieved 2026-02-22.
  4. ^ a b c d Lombaert, R.; Decin, L.; Royer, P.; de Koter, A.; Cox, N. L. J.; González-Alfonso, E.; Neufeld, D.; De Ridder, J.; Agúndez, M.; Blommaert, J. A. D. L.; Khouri, T. (April 2016). "Constraints on the H2O formation mechanism in the wind of carbon-rich AGB stars". Astronomy and Astrophysics. 588: A124. arXiv:1601.07017. Bibcode:2016A&A...588A.124L. doi:10.1051/0004-6361/201527049. ISSN 0004-6361. S2CID 62787287.

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