T Antliae
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 |
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|---|---|
| Constellation | Antlia |
| Right ascension | 09h 33m 50.86s |
| Declination | −36° 36′ 56.8″ |
| Apparent magnitude (V) | 9.27 |
| Characteristics | |
| Spectral type | F6 Iab |
| Variable type | Cepheid |
| Astrometry | |
| Distance | 7498 ly (2300 pc) |
| Details | |
| Mass | 3? / 0.7 M☉ |
| Rotation | ~9 km/s |
| Age | ~79 Million years |
| Other designations | |
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T Ant.
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T Antliae (also abbreviated T Ant) is a Cepheid variable star 2.3 kiloparsecs away from the Sun in the constellation of Antlia. A yellow-white supergiant with a spectral type of F6Iab, it ranges between apparent magnitude 8.88 and 9.82 over a period of 5.9 days.[1]
Stellar system
The F-type supergiant also forms a binary system with an unseen stellar companion with putative mass of 70% Solar mass. Such a stellar component could likely take 42.4 years to complete its orbit around the Cepheid (semimajor axis around 10.8 Astronomical Units).[2]
