HD 68402
HD 68402 is a solitary star located in the circumpolar constellation Volans. With an apparent magnitude of 9.09, it is invisible to the naked eye but can be seen with an amateur telescope. This star is located at a distance of 256 light years based on its parallax shift but is drifting away at a rate of 11.60 km/s.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Volans |
| Right ascension | 08h 05m 23.69129s |
| Declination | −74° 24′ 37.4873″ |
| Apparent magnitude (V) | 9.09 ± 0.02 |
| Characteristics | |
| Spectral type | G5 IV/V |
| B−V color index | +0.68 |
| Astrometry | |
| Radial velocity (Rv) | 11.60 ± 0.49 km/s |
| Proper motion (μ) | RA: −78.195 mas/yr Dec.: +78.973 mas/yr |
| Parallax (π) | 12.7204 ± 0.0101 mas |
| Distance | 256.4 ± 0.2 ly (78.61 ± 0.06 pc) |
| Absolute magnitude (MV) | +4.66 |
| Details | |
| Mass | 1.12 ± 0.05 M☉ |
| Radius | 1.02 ± 0.05 R☉ |
| Luminosity | 1.17+0.06 −0.07 L☉ |
| Surface gravity (log g) | 4.43 ± 0.04 cgs |
| Temperature | 5,907 ± 68 K |
| Metallicity [Fe/H] | +0.29 ± 0.10 dex |
| Rotational velocity (v sin i) | 2.9 ± 0.2 km/s |
| Age | 1 ± 0.9 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 68402 has a classification of G5 IV/V, which indicates that it is a G5 star with the characteristics of a subgiant and main-sequence star. Contrary to its classification, it is actually a G1 dwarf. At present it is slightly more massive than the Sun and has a similar radius to the latter. It radiates at 1.17 times the luminosity of the Sun from its photosphere at an effective temperature of 5,907 K, which gives it a yellow hue. At an age of 1 billion years HD 68402 has a projected rotational velocity of almost 3 km/s and is metal rich like most planetary hosts (1.94 times to be exact).