HD 58425

Last updated
HD 58425
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Camelopardalis [1]
Right ascension 07h 30m 52.66467s [2]
Declination +68° 27′ 56.3270″ [2]
Apparent magnitude  (V)5.64±0.01 [3]
Characteristics
Evolutionary stage red giant branch [2]
Spectral type K2 III [4]
B−V color index +1.11 [5]
Astrometry
Radial velocity (Rv)58.6±0.2 [6] km/s
Proper motion (μ)RA: −2.031 mas/yr [2]
Dec.: −42.687 mas/yr [2]
Parallax (π)6.9858±0.2644  mas [2]
Distance 470 ± 20  ly
(143 ± 5  pc)
Absolute magnitude  (MV)−0.05 [1]
Details
Mass 1.74±0.52 [7]   M☉
Radius 24.7 [8]   R☉
Luminosity 199+24
−22 [9]   L☉
Surface gravity (log g)2.4±0.1 [10]   cgs
Temperature 4,479±62 [8]   K
Metallicity [Fe/H]−0.42±0.04 [10]   dex
Age 3.55+0.52
−0.46 [7]   Gyr
Other designations
AG+68°343, BD+68°480, FK5 284, GC 9985, HD 58425, HIP 36528, HR 2830, SAO 14211 [11]
Database references
SIMBAD data

HD 58425, also known as HR 2830, is an astrometric binary [12] (100% chance [13] ) located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orang point of light at an apparent magnitude of 5.64. [3] Based on parallax measurements from Gaia DR3, the system is estimated to be 470 light years away from Earth. [2] It appears to be rapidly receding from the Sun, having a heliocentric radial velocity of 58.6  km/s . [6]

The visible component is an evolved, RGB star with a stellar classification of K2 III. [4] It has 1.74 times the mass of the Sun and is said to be 3.55 billion years old. [7] At this age, the object has expanded to 24.7 times the radius of the Sun [8] and now radiates nearly 200 times the luminosity of the Sun [9] from its enlarged photosphere at an effective temperature of 4,479  K . [8] HD 58425 A has an iron abundance only 38% that of the Sun's, [10] making it metal deficient.

References

  1. 1 2 Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv: 1108.4971 . Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. eISSN   1562-6873. ISSN   1063-7737. S2CID   119257644.
  2. 1 2 3 4 5 6 7 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.
  3. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27 –L30. Bibcode:2000A&A...355L..27H. ISSN   0004-6361.
  4. 1 2 Adams, Walter S.; Joy, Alfred H.; Humason, Milton L.; Brayton, Ada Margaret (April 1935). "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars". The Astrophysical Journal. 81: 187. Bibcode:1935ApJ....81..187A. doi: 10.1086/143628 . eISSN   1538-4357. ISSN   0004-637X.
  5. ↑ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. Bibcode:1970Priv.........0H.
  6. 1 2 Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (January 2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165. arXiv: astro-ph/0409579 . Bibcode:2005A&A...430..165F. doi: 10.1051/0004-6361:20041272 . S2CID   17804304.
  7. 1 2 3 Feuillet, Diane K.; Bovy, Jo; Holtzman, Jon; Girardi, Léo; MacDonald, Nick; Majewski, Steven R.; Nidever, David L. (20 January 2016). "Determining Ages of APOGEE Giants with Known Distances". The Astrophysical Journal. 817 (1): 40. arXiv: 1511.04088 . Bibcode:2016ApJ...817...40F. doi: 10.3847/0004-637X/817/1/40 . eISSN   1538-4357.
  8. 1 2 3 4 Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv: 1905.10694 . Bibcode:2019AJ....158..138S. doi: 10.3847/1538-3881/ab3467 . eISSN   1538-3881.
  9. 1 2 Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy & Astrophysics. 633: A34. arXiv: 1910.12732 . Bibcode:2020A&A...633A..34C. doi: 10.1051/0004-6361/201936360 . eISSN   1432-0746. ISSN   0004-6361.
  10. 1 2 3 Sprague, Dani; et al. (8 March 2022). "APOGEE Net: An Expanded Spectral Model of Both Low-mass and High-mass Stars". The Astronomical Journal. 163 (4): 152. arXiv: 2201.03661 . Bibcode:2022AJ....163..152S. doi: 10.3847/1538-3881/ac4de7 . eISSN   1538-3881. ISSN   0004-6256.
  11. ↑ "HD 58425". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 21 September 2022.
  12. ↑ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv: 0806.2878 . Bibcode:2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x . eISSN   1365-2966. ISSN   0035-8711.
  13. ↑ Frankowski, A.; Jancart, S.; Jorissen, A. (19 December 2006). "Proper-motion binaries in the Hipparcos catalogue". Astronomy & Astrophysics. 464 (1): 377–392. arXiv: astro-ph/0612449 . Bibcode:2007A&A...464..377F. doi: 10.1051/0004-6361:20065526 . eISSN   1432-0746. ISSN   0004-6361.
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