Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Caelum |
Right ascension | 05h 03m 53.95236s[1] |
Declination | −41° 44′ 41.8259″[1] |
Apparent magnitude (V) | 6.30±0.01[2] |
Characteristics | |
Spectral type | F8 V[3][4] |
U−B color index | +0.04[5] |
B−V color index | +0.53[5] |
Astrometry | |
Radial velocity (Rv) | 29.8±0.9[6] km/s |
Proper motion (μ) | RA: +22.005 mas/yr[1] Dec.: +158.650 mas/yr[1] |
Parallax (π) | 31.6204 ± 0.0176 mas[1] |
Distance | 103.15 ± 0.06 ly (31.63 ± 0.02 pc) |
Absolute magnitude (MV) | +3.79[7] |
Details | |
Mass | 1.25[8] M☉ |
Radius | 1.33±0.03[9] R☉ |
Luminosity | 2.44±0.01[1] L☉ |
Surface gravity (log g) | 4.25[10] cgs |
Temperature | 6,227±68[9] K |
Metallicity [Fe/H] | −0.04[11] dex |
Rotational velocity (v sin i) | 8[12] km/s |
Age | 3.46[11] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HD 32820, also known as HR 1651, is a yellowish-white hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 6.3,[2] placing it near the limit of naked eye visibility. The object is located relatively close at a distance of 103 light years based on parallax measurements from Gaia DR3,[1] but is receding with a heliocentric radial velocity of 29.8 km/s.[6]
HD 32820 has a stellar classification of F8 V,[3][4] indicating that it is an ordinary F-type main-sequence star that is generating energy via hydrogen fusion at its core. It has 125% the mass of the Sun[8] and 133% of its radius.[9] It radiates double the luminosity of the Sun[1] from its photosphere at an effective temperature of 6,227 K.[9] HD 32820 is said to be 3.46 billion years old,[11] slightly younger than the Sun, and has a near solar iron abundance.[11] The star spins modestly with a projected rotational velocity of 8 km/s[12] and is chromospherically inactive[15]