HD 83332
Star in the constellation Antlia
From Wikipedia, the free encyclopedia
HD 83332 (HR 3830) is a solitary,[13] orange hued star located in the southern constellation Antlia. It has an apparent magnitude of 5.68,[3] making it faintly visible to the naked eye if viewed under ideal conditions. The star is located 285 light years[2] away based on its annual parallax shift, but is drifting away with a radial velocity of 30 km/s.[6]
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Antlia[1] |
| Right ascension | 09h 37m 00.2073s[2] |
| Declination | −25° 17′ 48.335″[2] |
| Apparent magnitude (V) | 5.68±0.01[3] |
| Characteristics | |
| Spectral type | K0 III[4] |
| B−V color index | +1.12[5] |
| Astrometry | |
| Radial velocity (Rv) | 30±2[6] km/s |
| Proper motion (μ) | RA: −63.114 mas/yr[2] Dec.: +36.255 mas/yr[2] |
| Parallax (π) | 11.4429±0.0711 mas[2] |
| Distance | 285 ± 2 ly (87.4 ± 0.5 pc) |
| Absolute magnitude (MV) | +0.78[1] |
| Details | |
| Mass | 1.6+0.6 −0.9[7] M☉ |
| Radius | 10.6[8] R☉ |
| Luminosity | 55[7] L☉ |
| Surface gravity (log g) | 2.40 ± 0.37[9] cgs |
| Temperature | 4,610±110[7] K |
| Metallicity [Fe/H] | +0.05[10] dex |
| Age | 2.67+0.28 −0.56[2] Gyr |
| Other designations | |
| 16 G. Antliae[11], CD−24°8272, CPD−24°4144, GC 13287, HD 83332, HIP 47187, HR 3830, SAO 177748[12] | |
| Database references | |
| SIMBAD | data |
HD 83332 has a classification of K0 III,[4] which suggests it is an evolved giant star. At present it has 1.6[7] times the mass of the Sun and at an age of 2.7 billion years,[2] has expanded to a radius of 10.6 R☉. It radiates at 55 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,610 K.[7] HD 83332 has a solar metallicity, 112% that of the Sun to be exact, and is a member of the thin disk.[10]