HD 24160
Star in the constellation Eridanus
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HD 24160 is a single[10] 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.[1] The distance to HD 24160 can be estimated from its annual parallax shift of 14.98 mas,[2] yielding a separation of 218 light years. It is moving further from the Earth with a heliocentric radial velocity of +2 km/s.[5] This object is a coronal member of the Ursa Major Moving Group of stars that share a common motion through space.[11]
 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus[1] |
| Right ascension | 03h 49m 27.24527s[2] |
| Declination | −36° 12′ 34.8771″[2] |
| Apparent magnitude (V) | 4.17[1] |
| Characteristics | |
| Evolutionary stage | red clump[3] |
| Spectral type | G7 III[4] |
| B−V color index | 0.927±0.045[1] |
| Astrometry | |
| Radial velocity (Rv) | +2.0±0.7[5] km/s |
| Proper motion (μ) | RA: −45.547(77) mas/yr[2] Dec.: −49.503(108) mas/yr[2] |
| Parallax (π) | 14.9781±0.0915 mas[2] |
| Distance | 218 ± 1 ly (66.8 ± 0.4 pc) |
| Absolute magnitude (MV) | 0.13[1] |
| Details | |
| Mass | 2.33[6] M☉ |
| Radius | 11[7] R☉ |
| Luminosity | 81.3[6] L☉ |
| Surface gravity (log g) | 2.85±0.08[8] cgs |
| Temperature | 4,948±45[6] K |
| Metallicity [Fe/H] | +0.08±0.02[8] dex |
| Age | 1.76[6] Gyr |
| Other designations | |
| g Eri, CD−36°1467, FK5 143, HD 24160, HIP 17874, HR 1195, SAO 194559[9] | |
| Database references | |
| SIMBAD | data |
At the age of 1.76 billion years old, HD 24160 is an evolved G-type giant with a stellar classification of G7 III,[4] having consumed the hydrogen at its core and tracked away from the main sequence. It has 2.33[6] times the mass of the Sun and has expanded to about 11[7] times the Sun's radius. The star is radiating 81.3[6] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,948 K.[6]