S Antliae
Star in the constellation Antlia / From Wikipedia, the free encyclopedia
S Antliae is a W Ursae Majoris-type eclipsing binary star in Antlia.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Antlia |
Right ascension | 09h 32m 18.3865s[2] |
Declination | −28° 37′ 39.968″[2] |
Apparent magnitude (V) | 6.27 to 6.83[3] |
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[2] |
Distance | 261 ± 1 ly (79.9 ± 0.3 pc) |
Absolute magnitude (MV) | 1.963[4] |
Orbit[5] | |
Period (P) | 0.648 days |
Semi-major axis (a) | 3.405 R☉ |
Inclination (i) | 69.49° |
Details[5] | |
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 |
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