HD 71863
Star in the constellation Volans
From Wikipedia, the free encyclopedia
HD 71863 (HR 3346) is a solitary star in the southern circumpolar constellation Volans. It is faintly visible to the naked eye with an apparent magnitude of 5.94 and is located 408 light-years away based on parallax measurements. However, it is receding with a radial velocity of 19.1 km/s.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Volans |
| Right ascension | 08h 25m 51.5958s[1] |
| Declination | −64° 36′ 02.2300″[1] |
| Apparent magnitude (V) | 5.94±0.01[2] |
| Characteristics | |
| Spectral type | G8/K0 III[3] |
| U−B color index | +0.73[4] |
| B−V color index | +0.92[4] |
| Astrometry | |
| Radial velocity (Rv) | 19.1±3.1[5] km/s |
| Proper motion (μ) | RA: −14.486 mas/yr[1] Dec.: +14.924 mas/yr[1] |
| Parallax (π) | 7.9857±0.079 mas[1] |
| Distance | 408 ± 4 ly (125 ± 1 pc) |
| Absolute magnitude (MV) | +0.7[6] |
| Details[7] | |
| Mass | 2.65±0.18 M☉ |
| Radius | 11.06±0.26 R☉ |
| Luminosity | 69.6±1.8 L☉ |
| Surface gravity (log g) | 2.75±0.10 cgs |
| Temperature | 5,014±48 K |
| Metallicity [Fe/H] | 0.02±0.04 dex |
| Rotational velocity (v sin i) | 2.7±1.1[8] km/s |
| Other designations | |
| 28 G. Volantis, CD−64°328, CPD−64°878, GC 11564, HD 71863, HIP 41321, HR 3346, SAO 250226[9][10] | |
| Database references | |
| SIMBAD | data |
HD 71863 has a classification of G8/K0 III[3] — intermediate between a G8 and K0 giant star. It has 2.65 times the mass of the Sun but has expanded to 11 times it's girth.[7] It shines at 72 times the luminosity of the Sun[7] and rotates slowly, with a projected rotational velocity of 2.7 km/s.[8] With an effective temperature of 5,014 K,[7] it has a yellowish-orange hue. HD 71863 metallicity – elements heavier than helium – is at solar level.[7]
HD 71863 is located near a group of stars moving with a Carinae, but is just moving with them by coincidence, and has no relation to the group.[11]