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Star in the constellation Eridanus From Wikipedia, the free encyclopedia
HD 24160 is a single[9] star in the equatorial constellation of Eridanus. It has the Bayer designation g Eridani. It is visible to the naked eye with an apparent visual magnitude of 4.17.[2] The distance to HD 24160 can be estimated from its annual parallax shift of 14.98 mas,[1] yielding a separation of 218 light years. It is moving further from the Earth with a heliocentric radial velocity of +2 km/s.[4] This object is a coronal member of the Ursa Major Moving Group of stars that share a common motion through space.[10]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Eridanus |
Right ascension | 03h 49m 27.24527s[1] |
Declination | −36° 12′ 34.8771″[1] |
Apparent magnitude (V) | 4.17[2] |
Characteristics | |
Spectral type | G7 III[3] |
B−V color index | 0.927±0.045[2] |
Astrometry | |
Radial velocity (Rv) | +2.0±0.7[4] km/s |
Proper motion (μ) | RA: −45.547(77) mas/yr[1] Dec.: −49.503(108) mas/yr[1] |
Parallax (π) | 14.9781 ± 0.0915 mas[1] |
Distance | 218 ± 1 ly (66.8 ± 0.4 pc) |
Absolute magnitude (MV) | 0.13[2] |
Details | |
Mass | 2.33[5] M☉ |
Radius | 11[6] R☉ |
Luminosity | 81.3[5] L☉ |
Surface gravity (log g) | 2.85±0.08[7] cgs |
Temperature | 4,948±45[5] K |
Metallicity [Fe/H] | +0.08±0.02[7] dex |
Age | 1.76[5] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
At the age of 1.76 billion years old, HD 24160 is an evolved G-type giant star with a stellar classification of G7 III,[3] having consumed the hydrogen at its core and tracked away from the main sequence. It has 2.33[5] times the mass of the Sun and has expanded to about 11[6] times the Sun's radius. The star is radiating 81.3[5] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,948 K.[5]
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