HD 58425
| Observation data Epoch J2000.0 Equinox ICRS | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 07h 30m 52.66467s |
| Declination | +68° 27′ 56.3270″ |
| Apparent magnitude (V) | 5.64±0.01 |
| Characteristics | |
| Evolutionary stage | red giant branch |
| Spectral type | K2 III |
| B−V color index | +1.11 |
| Astrometry | |
| Radial velocity (Rv) | 58.6±0.2 km/s |
| Proper motion (μ) | RA: −2.031 mas/yr Dec.: −42.687 mas/yr |
| Parallax (π) | 6.9858±0.2644 mas |
| Distance | 470 ± 20 ly (143 ± 5 pc) |
| Absolute magnitude (MV) | −0.05 |
| Details | |
| Mass | 1.74±0.52 M☉ |
| Radius | 24.7 R☉ |
| Luminosity | 199+24 −22 L☉ |
| Surface gravity (log g) | 2.4±0.1 cgs |
| Temperature | 4,479±62 K |
| Metallicity [Fe/H] | −0.42±0.04 dex |
| Age | 3.55+0.52 −0.46 Gyr |
| Other designations | |
| AG+68°343, BD+68°480, FK5 284, GC 9985, HD 58425, HIP 36528, HR 2830, SAO 14211 | |
| Database references | |
| SIMBAD | data |
HD 58425, also known as HR 2830, is an astrometric binary (100% chance) located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orange point of light at an apparent magnitude of 5.64. Based on parallax measurements from Gaia DR3, the system is estimated to be 470 light years away from Earth. It appears to be rapidly receding from the Sun, having a heliocentric radial velocity of 58.6 km/s.
The visible component is an evolved, RGB star with a stellar classification of K2 III. It has 1.74 times the mass of the Sun and is said to be 3.55 billion years old. At this age, the object has expanded to 24.7 times the radius of the Sun and now radiates nearly 200 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,479 K. HD 58425 A has an iron abundance only 38% that of the Sun's, making it metal deficient.
References
- 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.
- 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.
- 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.
- 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.
- ↑ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. Bibcode:1970Priv.........0H.
- 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.
- 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.
- 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.
- 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.
- 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.
- ↑ "HD 58425". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 September 2022.
- ↑ 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.
- ↑ 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.
