V803 Centauri
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.
Three light curves for V803 Centauri, on three timescales, hours (plot A), days (plot B) and years (plot C). Adapted from Patterson et al. (2000), Kato et al. (2004) and Levitan et al. (2015) | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 23m 44.54s |
| Declination | −41° 44′ 29.54″ |
| Apparent magnitude (V) | 13.2 (var) |
| Characteristics | |
| Spectral type | pec |
| U−B color index | -0.9 - -1.0 |
| B−V color index | 0.0.1 |
| Variable type | AM CVn |
| Astrometry | |
| Proper motion (μ) | RA: -3.907 mas/yr Dec.: +11.978 mas/yr |
| Parallax (π) | 3.4885 ± 0.0599 mas |
| Distance | 930 ± 20 ly (287 ± 5 pc) |
| Absolute magnitude (MV) | 5.93 |
| Details | |
| White dwarf | |
| Mass | 0.9-1.2 M☉ |
| Donor star | |
| Mass | 0.06-0.11 M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
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