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Star in the constellation of Antlia From Wikipedia, the free encyclopedia
HD 86267, also known as HR 3932, is a solitary[14] orange-hued star located in the southern constellation Antlia. It has an apparent magnitude of 5.82,[2] allowing it to be faintly seen with the naked eye. Parallax measurements place it a distance of 514 light years[1] and it is currently receding with a heliocentric radial velocity of 3.7 km/s.[5]
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Antlia |
Right ascension | 09h 56m 35.4937s[1] |
Declination | −33° 25′ 06.587″[1] |
Apparent magnitude (V) | 5.82±0.01[2] |
Characteristics | |
Evolutionary stage | RGB[1] |
Spectral type | K1 III[3] |
B−V color index | +1.2[4] |
Astrometry | |
Radial velocity (Rv) | 3.7±0.4[5] km/s |
Proper motion (μ) | RA: +34.064 mas/yr[1] Dec.: +22.102 mas/yr[1] |
Parallax (π) | 6.3494 ± 0.0453 mas[1] |
Distance | 514 ± 4 ly (157 ± 1 pc) |
Absolute magnitude (MV) | −0.15[6] |
Details | |
Mass | 1.73+1.24 −0.71[7] M☉ |
Radius | 19.7[8] R☉ |
Luminosity | 158±11[7] L☉ |
Surface gravity (log g) | 1.86[9] cgs |
Temperature | 4430±110[7] K |
Metallicity [Fe/H] | −0.15[10] dex |
Rotational velocity (v sin i) | <1[11] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 86267 has a stellar classification of K1 III,[3] indicating that it is a red giant. At present it has 1.73 times the mass of the Sun[7] but has expanded to 19.7 times its girth.[8] It shines with a luminosity of 158 L☉ from its enlarged photosphere at an effective temperature of 4,430 K.[7] It is a member of the old disk population, having a metallicity 71% that of the Sun.[10] The value means that it is metal deficient. Its current rotation rate is too low to be measured accurately.[11]