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 | |
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]