HD 129445
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Circinus |
| Right ascension | 14h 46m 03.06521s |
| Declination | –68° 45′ 45.8797″ |
| Apparent magnitude (V) | 8.80 |
| Characteristics | |
| Spectral type | G6 V |
| Apparent magnitude (B) | 9.556 |
| Apparent magnitude (J) | 7.531±0.023 |
| Apparent magnitude (H) | 7.243±0.027 |
| Apparent magnitude (K) | 7.167±0.026 |
| B−V color index | 0.756±0.002 |
| Astrometry | |
| Radial velocity (Rv) | +8.56±0.13 km/s |
| Proper motion (μ) | RA: –197.892 mas/yr Dec.: –57.069 mas/yr |
| Parallax (π) | 14.9136±0.0147 mas |
| Distance | 218.7 ± 0.2 ly (67.05 ± 0.07 pc) |
| Absolute magnitude (MV) | 4.73 |
| Details | |
| Mass | 1.06+0.03 −0.05 M☉ |
| Radius | 1.18±0.01 R☉ |
| Luminosity | 1.229+0.005 −0.004 L☉ |
| Surface gravity (log g) | 4.39±0.08 cgs |
| Temperature | 5,605+21 −34 K |
| Metallicity [Fe/H] | 0.36±0.10 dex |
| Rotational velocity (v sin i) | 1.4 km/s |
| Age | 4.94+3.77 −2.04 Gyr |
| Other designations | |
| CD–68°1403, HD 129445, HIP 72203, PPM 360965, LTT 5856, NLTT 38236 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 129445 (HIP 72203; LTT 5856) is a star located in the southern constellation Circinus. It has an apparent magnitude of 8.80, making it faintly visible in binoculars but not to the naked eye. The object is located relatively close at a distance of 219 light-years based on Gaia DR3 parallax measurements but it is drifting away with a spectroscopic radial velocity of 8.56 km/s. It has an absolute magnitude of +4.73, which is similar to the Sun's absolute magnitude of 4.83.