28 Aurigae
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 48m 51.819s |
| Declination | +39° 32′ 01.02″ |
| Apparent magnitude (V) | 6.8 |
| Characteristics | |
| Spectral type | G1 III-IV |
| Apparent magnitude (G) | 6.59 |
| U−B color index | +0.41 |
| B−V color index | +0.81 |
| Astrometry | |
| Radial velocity (Rv) | 15.15±1.00 km/s |
| Proper motion (μ) | RA: 0.189±0.035 mas/yr Dec.: −26.013±0.022 mas/yr |
| Parallax (π) | 5.2120±0.0306 mas |
| Distance | 626 ± 4 ly (192 ± 1 pc) |
| Absolute magnitude (MV) | +0.32 |
| Details | |
| Mass | 1.6 M☉ |
| Radius | 10.3 R☉ |
| Luminosity | 74 L☉ |
| Surface gravity (log g) | 3.45 cgs |
| Temperature | 5,443 K |
| Metallicity [Fe/H] | −0.16 dex |
| Age | 500 Myr |
| Other designations | |
| BD+39°1416, HD 38604, HIP 27458, SAO 58460, Gaia DR3 191509366212532352 | |
| Database references | |
| SIMBAD | data |
28 Aurigae (28 Aur) is a star in the constellation Auriga. Its apparent magnitude is 6.80. It is a giant star which has exhausted its core hydrogen and expanded to ten times the size of the Sun. Despite being slightly cooler than the sun at 5,443 K it is 74 times more luminous. It is located about 626 ly away.
28 Aurigae is one of the few faint Flamsteed stars which is not in the Bright Star Catalogue. It is included in the Hipparcos catalogue and its parallax was calculated to be 4.99±0.57 mas. Its Gaia Data Release 3 parallax is larger and more precise at 5.2120±0.0306
References
- 1 2 3 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. XHIP record for this object at VizieR.
- 1 2 3 4 5 6 7 8 9 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 3 4 Oja, T. (1984). "UBV photometry of stars whose positions are accurately known". Astronomy and Astrophysics Supplement Series. 57: 357. Bibcode:1984A&AS...57..357O.
- 1 2 3 4 Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G.; Valentini, M.; Torralba Elipe, G.; Steinmetz, M.; Pantaleoni-González, M.; Malhotra, S.; Jiménez-Arranz, Ó.; Enke, H.; Casamiquela, L.; Ardèvol, J. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics. 691: A98. arXiv:2407.06963. Bibcode:2024A&A...691A..98K. doi:10.1051/0004-6361/202451427.
- ↑ Stassun, Keivan G.; et al. (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.
- ↑ Kordopatis, G.; Schultheis, M.; McMillan, P. J.; Palicio, P. A.; De Laverny, P.; Recio-Blanco, A.; Creevey, O.; Álvarez, M. A.; Andrae, R.; Poggio, E.; Spitoni, E.; Contursi, G.; Zhao, H.; Oreshina-Slezak, I.; Ordenovic, C.; Bijaoui, A. (2023). "Stellar ages, masses, extinctions, and orbital parameters based on spectroscopic parameters of Gaia DR3". Astronomy and Astrophysics. 669: A104. arXiv:2206.07937. Bibcode:2023A&A...669A.104K. doi:10.1051/0004-6361/202244283.
- ↑ Bidelman, W. P. (1990). "Flamsteed stars not contained in the Yale "Catalogue of Bright Stars"". Bulletin d'Information du Centre de Données Stellaires. 38: 13. Bibcode:1990BICDS..38...13B.
- ↑ Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
