Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Caelum |
Right ascension | 04h 43m 09.29298s[1] |
Declination | −30° 45′ 56.0166″[1] |
Apparent magnitude (V) | 5.66±0.01[2] |
Characteristics | |
Evolutionary stage | red giant branch[1] |
Spectral type | K3 III[3] |
U−B color index | +1.60[4] |
B−V color index | +1.39[4] |
Astrometry | |
Radial velocity (Rv) | −3.8±2.9[5] km/s |
Proper motion (μ) | RA: −30.790 mas/yr[1] Dec.: −67.724 mas/yr[1] |
Parallax (π) | 5.326 ± 0.0417 mas[1] |
Distance | 612 ± 5 ly (188 ± 1 pc) |
Absolute magnitude (MV) | −0.8[6] |
Details | |
Mass | 1.16[7] M☉ |
Radius | 41.62[8] R☉ |
Luminosity | 299±5[9] L☉ |
Surface gravity (log g) | 1.40[7] cgs |
Temperature | 4,262±122[10] K |
Metallicity [Fe/H] | +0.01[11] dex |
Rotational velocity (v sin i) | <1[12] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 30080, also known as HR 1509, is a solitary,[15] orange hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 5.66,[2] allowing it to be faintly visible to the naked eye. Parallax measurements from Gaia DR3 place the object at a distance of 612 light years. It appears to be approaching the Solar System with a heliocentric radial velocity of −3.8 km/s.[5] Eggen (1989) lists it as a member of the thick disk population.[11]
HD 30080 is an evolved red giant with a stellar classification of K3 III.[3] It is currently on the red giant branch,[1] generating energy by fusing a hydrogen shell around an inert helium core. It has 116% the mass of the Sun[7] but has expanded to 41.6 times its girth.[8] It radiates 299 times the luminosity of the Sun[9] from its enlarged photosphere at an effective temperature of 4,262 K.[10] HD 30080 has a solar metallicity[11] and spins slowly with a projected rotational velocity of <1 km/s.[12]