Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Caelum [1] |
Right ascension | 05h 03m 53.95236s [2] |
Declination | −41° 44′ 41.8259″ [2] |
Apparent magnitude (V) | 6.30±0.01 [3] |
Characteristics | |
Evolutionary stage | main sequence [2] |
Spectral type | F8 V [4] [5] |
U−B color index | +0.04 [6] |
B−V color index | +0.53 [6] |
Astrometry | |
Radial velocity (Rv) | 29.8±0.9 [7] km/s |
Proper motion (μ) | RA: +22.005 mas/yr [2] Dec.: +158.650 mas/yr [2] |
Parallax (π) | 31.6204±0.0176 mas [2] |
Distance | 103.15 ± 0.06 ly (31.63 ± 0.02 pc) |
Absolute magnitude (MV) | +3.79 [1] |
Details | |
Mass | 1.25 [8] M☉ |
Radius | 1.33±0.03 [9] R☉ |
Luminosity | 2.44±0.01 [2] 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 | |
27 G. Caeli [13] , CD−41°1690, CPD−41°621, GC 6204, HD 32820, HIP 23555, HR 1651, SAO 217153 [14] | |
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, [3] 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, [2] but is receding with a heliocentric radial velocity of 29.8 km/s . [7]
HD 32820 has a stellar classification of F8 V, [4] [5] 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 [2] 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]