Gamma Apodis
Gamma Apodis (γ Aps, γ Apodis) is the Bayer designation for a star in the southern circumpolar constellation of Apus. From parallax measurements, the distance to this star can be estimated as 150 ± 4 light-years (46.0 ± 1.2 pc). It is visible to the naked eye with an apparent visual magnitude of 3.86. A stellar classification of G9 III identifies it as a giant star in the later stages of its evolution. It is an active X-ray source with a luminosity of 1.607 × 1030 erg s−1, making it one of the 100 strongest stellar X-ray sources within 50 parsecs of the Sun.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 16h 33m 27.08379s |
| Declination | −78° 53′ 49.7372″ |
| Apparent magnitude (V) | 3.86 |
| Characteristics | |
| Spectral type | G9 III |
| U−B color index | +0.62 |
| B−V color index | +0.91 |
| Astrometry | |
| Radial velocity (Rv) | +5.7 km/s |
| Proper motion (μ) | RA: –126.122 ± 0.688 mas/yr Dec.: –78.699 ± 0.667 mas/yr |
| Parallax (π) | 21.7674 ± 0.5542 mas |
| Distance | 150 ± 4 ly (46 ± 1 pc) |
| Absolute magnitude (MV) | +0.41 |
| Details | |
| Surface gravity (log g) | 3.5 cgs |
| Temperature | 5,040 K |
| Metallicity [Fe/H] | –0.05 dex |
| Rotational velocity (v sin i) | 2.7 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
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