 Location shown, annotated: g | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 03 49 27.24527 |
| Declination | −36° 12′ 34.8771″ |
| Apparent magnitude (V) | 4.17 |
| Characteristics | |
| Spectral type | G7 III |
| B−V color index | 0.927±0.045 |
| Astrometry | |
| Radial velocity (Rv) | +2.0±0.7 km/s |
| Proper motion (μ) | RA: −45.547(77) mas/yr Dec.: −49.503(108) mas/yr |
| Parallax (π) | 14.9781 ± 0.0915 mas |
| Distance | 218 ± 1 ly (66.8 ± 0.4 pc) |
| Absolute magnitude (MV) | 0.13 |
| Details | |
| Mass | 2.33 M☉ |
| Radius | 11 R☉ |
| Luminosity | 81.3 L☉ |
| Surface gravity (log g) | 2.85±0.08 cgs |
| Temperature | 4,948±45 K |
| Metallicity | +0.08±0.02 dex |
| Age | 1.76 Gyr |
| Other designations | |
| g Eri, CD−36°1467, FK5 143, HD 24160, HIP 17874, HR 1195, SAO 194559 | |
| Database references | |
| SIMBAD | data |
HD 24160 is a single 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. The distance to HD 24160 can be estimated from its annual parallax shift of 14.98 mas, yielding a separation of 218 light years. It is moving further from the Earth with a heliocentric radial velocity of +2 km/s. This object is a coronal member of the Ursa Major Moving Group of stars that share a common motion through space.
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, having consumed the hydrogen at its core and tracked away from the main sequence. It has 2.33 times the mass of the Sun and has expanded to about 11 times the Sun's radius. The star is radiating 81.3 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,948 K.
References
- ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
- ^ Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373.
- ^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
- ^ Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88, S2CID 118505114.
- ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367 (2): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
- ^ Alves, S.; et al. (April 2015), "Determination of the spectroscopic stellar parameters for 257 field giant stars", Monthly Notices of the Royal Astronomical Society, 448 (3): 2749–2765, arXiv:1503.02556, Bibcode:2015MNRAS.448.2749A, doi:10.1093/mnras/stv189.
- "HD 24160". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-07-23.
- Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- Chupina, N. V.; et al. (June 2006), "Kinematic structure of the corona of the Ursa Major flow found using proper motions and radial velocities of single stars", Astronomy and Astrophysics, 451 (3): 909–916, Bibcode:2006A&A...451..909C, doi:10.1051/0004-6361:20054009.
