| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Antlia [2] |
| Right ascension | 10h 21m 09.11141s [3] |
| Declination | −34° 47′ 18.7444″ [3] |
| Apparent magnitude (V) | 8.2 - 14.0 [4] |
| Characteristics | |
| Evolutionary stage | AGB [5] |
| Spectral type | M7IIIe [4] |
| Variable type | Mira [4] |
| Astrometry | |
| Radial velocity (Rv) | 2.00 km/s |
| Proper motion (μ) | RA: −2.560 [3] mas/yr Dec.: +7.487 [3] mas/yr |
| Parallax (π) | 1.1397±0.0687 mas [3] |
| Distance | 2,900 ± 200 ly (880 ± 50 pc) |
| Details | |
| Mass | 3.2 [6] M☉ |
| Radius | 620 [7] R☉ |
| Luminosity | 24,000 [8] L☉ |
| Surface gravity (log g) | 1.25 [6] cgs |
| Temperature | 3,293 [9] K |
| Other designations | |
| 2MASS J10210911-3447188, HIP 50697 | |
| Database references | |
| SIMBAD | data |
V Antliae (V Ant) is a Mira variable star in the constellation Antlia. It varies in brightness between magnitudes 8.2 and 14.0 with a period of 303 days. [4] Even at its brightest, it is far too faint to be seen with the naked eye.
V Antliae's variability was discovered by examining Harvard College Observatory photographic plates, and was announced by Henrietta S. Leavitt and Edward C. Pickering in 1913. [10]
1612 MHz OH maser emission was first detected from this star in 1973. [11] The star's water vapor emission line at 22 GHz was first observed at Haystack Observatory in 1973. [12]
