V803 Centauri

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V803 Cen

Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 13h 23m 44.54s[1]
Declination −41° 44′ 29.5″[1]
Apparent magnitude (V) 13.2[2] (var)
Spectral type pec
U−B color index -0.9 - -1.0[3]
B−V color index 0.0.1[3]
Variable type AM CVn[4]
Distance 347[4] pc
Absolute magnitude (MV) 5.93[4]
Mass 0.9-1.2/0.06-0.11[4] M
Other designations
V803 Centauri, V803 Cen, AE-1, 2MASS J13234454-4144294, AAVSO 1317-41.
Database references

V803 Centauri (V803 Cen) is a cataclysmic binary consisting of a dwarf helium star losing mass to a white dwarf. It is an example of the AM Canum Venaticorum (AM CVn) type of cataclysmic variable stars.[5]


  1. ^ a b Cutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C. 2246: 0. Bibcode:2003yCat.2246....0C. 
  2. ^ Samus', N. N.; Goranskii, V. P.; Durlevich, O. V.; Zharova, A. V.; Kazarovets, E. V.; Kireeva, N. N.; Pastukhova, E. N.; Williams, D. B.; Hazen, M. L. (2003). "An Electronic Version of the Second Volume of the General Catalogue of Variable Stars with Improved Coordinates". Astronomy Letters. 29 (7): 468. Bibcode:2003AstL...29..468S. doi:10.1134/1.1589864. 
  3. ^ a b Elvius, A. (1975). "Variable blue object with a peculiar spectrum". Astronomy and Astrophysics. 44: 117. Bibcode:1975A&A....44..117E. 
  4. ^ a b c d Solheim, J.-E. (2010). "AM CVn Stars: Status and Challenges". Publications of the Astronomical Society of the Pacific. 122 (896): 1133. Bibcode:2010PASP..122.1133S. doi:10.1086/656680. 
  5. ^ Patterson, Joseph; Walker, Stan; Kemp, Jonathan; O'Donoghue, Darragh; Bos, Marc; Stubbings, Rod (2000). "V803 Centauri: A Helium‐rich Dwarf Nova". Publications of the Astronomical Society of the Pacific. The University of Chicago Press on behalf of the Astronomical Society of the Pacific. 112 (771): 625–631. Bibcode:2000PASP..112..625P. JSTOR 316561. doi:10.1086/316561.