S Antliae
S Antliae is a W Ursae Majoris-type eclipsing binary star in Antlia.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Antlia |
| Right ascension | 09h 32m 18.3865s |
| Declination | −28° 37′ 39.968″ |
| Apparent magnitude (V) | 6.27 to 6.83 |
| Characteristics | |
| Spectral type | A9V |
| B−V color index | 0.33 |
| Variable type | Eclipsing binary W UMa type |
| Astrometry | |
| Parallax (π) | 12.5121 ± 0.0491 mas |
| Distance | 261 ± 1 ly (79.9 ± 0.3 pc) |
| Absolute magnitude (MV) | 1.963 |
| Orbit | |
| Period (P) | 0.648 days |
| Semi-major axis (a) | 3.405 R☉ |
| Inclination (i) | 69.49° |
| Details | |
| A | |
| Mass | 0.79 M☉ |
| Radius | 1.46 R☉ |
| Luminosity | 7.07 L☉ |
| Temperature | 7,800 K |
| B | |
| Mass | 0.47 M☉ |
| Radius | 1.13 R☉ |
| Luminosity | 3.32 L☉ |
| Temperature | 7,340 K |
| Age | 1.9 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.