Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

HD 58425

From Wikipedia, the free encyclopedia
Binary star in the constellation Camelopardalis
HD 58425
Observation data
EpochJ2000.0      EquinoxJ2000.0 (ICRS)
ConstellationCamelopardalis[1]
Right ascension07h 30m 52.66467s[2]
Declination+68° 27′ 56.3270″[2]
Apparent magnitude (V)5.64±0.01[3]
Characteristics
Evolutionary stagered giant branch[2]
Spectral typeK2 III[4]
B−Vcolor index+1.11[5]
Astrometry
Radial velocity (Rv)58.6±0.2[6] km/s
Proper motion (μ)RA: −2.031mas/yr[2]
Dec.: −42.687mas/yr[2]
Parallax (π)6.9858±0.2644 mas[2]
Distance470 ± 20 ly
(143 ± 5 pc)
Absolute magnitude (MV)−0.05[1]
Details
Mass1.74±0.52[7] M
Radius24.7[8] R
Luminosity199+24
−22
[9] L
Surface gravity (log g)2.4±0.1[10] cgs
Temperature4,479±62[8] K
Metallicity[Fe/H]−0.42±0.04[10] dex
Age3.55+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
SIMBADdata

HD 58425, also known asHR 2830, is anastrometric binary[12] (100% chance[13]) located in the northerncircumpolar constellationCamelopardalis. It is faintly visible to thenaked eye as an orang point of light at anapparent magnitude of 5.64.[3] Based onparallax measurements fromGaia DR3, the system is estimated to be 470light years away fromEarth.[2] It appears to be rapidly receding from theSun, having a heliocentricradial velocity of58.6 km/s.[6]

The visible component is an evolved,RGB star with astellar classification of K2 III.[4] It has 1.74 times themass of the Sun and is said to be 3.55billion years old.[7] At this age, the object has expanded to 24.7 times theradius of the Sun[8] and now radiates nearly 200 times theluminosity of the Sun[9] from its enlargedphotosphere at aneffective temperature of4,479 K.[8] HD 58425 A has aniron abundance only 38% that of the Sun's,[10] making it metal deficient.

References

[edit]
  1. ^abAnderson, 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. ^abcdefVallenari, 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 atVizieR.
  3. ^abHøg, 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. ^abAdams, 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. ^abFamaey, 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. ^abcFeuillet, 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. ^abcdStassun, Keivan G.; et al. (9 September 2019)."The RevisedTESS 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. ^abCharbonnel, 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 theGaia 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. ^abcSprague, 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. Retrieved21 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.
Stars
Bayer
Flamsteed
Variable
HR
HD
Other
Exoplanets
Star clusters
Nebulae
Galaxies
NGC
Other
Galaxy clusters
Astronomical events
Retrieved from "https://en.wikipedia.org/w/index.php?title=HD_58425&oldid=1297205240"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2026 Movatter.jp