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HD 24160

From Wikipedia, the free encyclopedia

HD 24160

Location shown, annotated: g
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: −44.841[1] mas/yr
Dec.: −50.421[1] mas/yr
Parallax (π)15.0389 ± 0.2211 mas[1]
Distance217 ± 3 ly
(66.5 ± 1.0 pc)
Absolute magnitude (MV)0.13[2]
Details
Mass2.33[5] M☉
Radius11[6] R☉
Luminosity81.3[5] L☉
Surface gravity (log g)2.85±0.08[7] cgs
Temperature4,948±45[5] K
Metallicity [Fe/H]+0.08±0.02[7] dex
Age1.76[5] Gyr
Other designations
g Eri, CD−36°1467, FK5 143, HD 24160, HIP 17874, HR 1195, SAO 194559[8]
Database references
SIMBADdata

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 15.0 mas,[1] yielding a separation of 217 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]

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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Transcription

References

  1. ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
  2. ^ a b c d 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.
  3. ^ a b 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.
  4. ^ a b 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.
  5. ^ a b c d e f g 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.
  6. ^ a b 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.
  7. ^ a b 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.
  8. ^ "HD 24160". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-07-23.
  9. ^ 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.
  10. ^ 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.
This page was last edited on 14 April 2023, at 13:27
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