Gamma Pyxidis
 Location of γ Pyxidis (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Pyxis |
| Right ascension | 08h 50m 31.9233s |
| Declination | −27° 42′ 35.440″ |
| Apparent magnitude (V) | 4.026 |
| Characteristics | |
| Spectral type | K3III |
| U−B color index | +1.368 |
| B−V color index | +1.284 |
| Astrometry | |
| Radial velocity (Rv) | 24.5±0.7 km/s |
| Proper motion (μ) |
RA: −134.31 mas/yr Dec.: 87.89 mas/yr |
| Parallax (π) | 15.73 ± 0.17mas |
| Distance | 207 ± 2 ly (63.6 ± 0.7 pc) |
| Details | |
| Radius | 21.87 R☉ |
| Luminosity | 178 L☉ |
| Surface gravity (log g) | 2.35 cgs |
| Temperature | 4,270 K |
| Metallicity [Fe/H] | -0.05 dex |
| Age | 4.29±2.49 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gamma Pyxidis (Gamma Pyx, γ Pyxidis, γ Pyx) is a 4th magnitude star in the constellation Pyxis. It is classified as a giant star of composition similar to the Sun with an estimated diameter 3.7 times that of the Sun. It is located an estimated 207 light years from the Solar System.
Gamma Pyxidis is moving through the Galaxy at a speed of 54.2 km/s relative to the Sun. Its projected Galactic orbit carries it between 21,300 and 30,700 light years from the center of the Galaxy.
In Chinese, 天狗 (Tiān Gǒu), meaning Celestial Dog, refers to an asterism consisting of γ Pyxidis, e Velorum, f Velorum, β Pyxidis, α Pyxidis and δ Pyxidis. Consequently, γ Pyxidis itself is known as 天狗六 (Tiān Gǒu liù, English: the Sixth Star of Celestial Dog.)
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