Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Apus |
Right ascension | 14h 08m 27.1634s[1] |
Declination | −74° 51′ 01.0329″[1] |
Apparent magnitude (V) | 6.02[2] |
Characteristics | |
Spectral type | G2/3 IV[3] |
U−B color index | +0.06[4] |
B−V color index | +0.58[4] |
Astrometry | |
Radial velocity (Rv) | −21.11±0.16[5] km/s |
Proper motion (μ) | RA: −243.574[1] mas/yr Dec.: +179.540[1] mas/yr |
Parallax (π) | 34.1491 ± 0.0256 mas[1] |
Distance | 95.51 ± 0.07 ly (29.28 ± 0.02 pc) |
Absolute magnitude (MV) | +3.75[2] |
Details[6] | |
Mass | 1.08+0.02 −0.01 M☉ |
Radius | 1.58+0.03 −0.05[5] R☉ |
Luminosity | 2.87±0.01[5] L☉ |
Surface gravity (log g) | 4.10±0.03 cgs |
Temperature | 5,943±50 K |
Metallicity [Fe/H] | −0.15±0.04 dex |
Rotational velocity (v sin i) | 3.1±1[7] km/s |
Age | 6.83+0.39 −0.57 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HD 122862 (HR 5279) is a solitary star in the southern circumpolar constellation Apus. It has an apparent magnitude of 6.02,[2] allowing it to be faintly seen with the naked eye under ideal conditions. The star is relatively close at a distance of 95 light years,[1] but is approaching the Sun with a radial velocity of −21.11 km/s.[5]
HD 122862 is a G-type subgiant[3] with 1.08 times the mass of the Sun[6] and a diameter of 1.58 R☉.[5] It shines at 2.87 times the luminosity of the Sun[5] from its photosphere at an effective temperature of 5,943 K,[6] giving it a yellow glow. HD 122862 has an iron abundance 71% that of the Sun[6] and, at an age of 6.83 billion years,[6] it spins slowly with a projected rotational velocity of 3.1 km/s.[7]