// Workers AI · dad joke modeWhat did 36 Persei say to its friend? You're a star to me.
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| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Perseus |
| Right ascension | 03h 32m 26.25926s[1] |
| Declination | 46° 03′ 24.7016″[1] |
| Apparent magnitude (V) | 5.32[2] |
| Characteristics | |
| Evolutionary stage | main sequence[3][1] |
| Spectral type | F4III[4] |
| U−B color index | −0.02[2] |
| B−V color index | +0.41[2] |
| Astrometry | |
| Radial velocity (Rv) | −47.5[5] km/s |
| Proper motion (μ) | RA: −53.125[1] mas/yr Dec.: −74.839[1] mas/yr |
| Parallax (π) | 26.0579±0.0776 mas[1] |
| Distance | 125.2 ± 0.4 ly (38.4 ± 0.1 pc) |
| Absolute magnitude (MV) | 2.50[6] |
| Details | |
| Mass | 1.40[7] M☉ |
| Radius | 2.17[7] R☉ |
| Luminosity | 8.3[7] L☉ |
| Surface gravity (log g) | 3.91[7] cgs |
| Temperature | 6,655[7] K |
| Metallicity [Fe/H] | 0.05[8] dex |
| Rotational velocity (v sin i) | 28.0[9] km/s |
| Age | 1.81[8] Gyr |
| Other designations | |
| 36 Per, NSV 1182, BD+45°778, FK5 2249, GC 4210, HD 21770, HIP 16499, HR 1069, SAO 38924[10] | |
| Database references | |
| SIMBAD | data |
36 Persei is a solitary,[11] variable star located 121 light years away from the Sun in the northern constellation of Perseus. It is visible to the naked eye as a dim, yellow-white hued point of light with a baseline apparent visual magnitude of 5.32.[2] The star is drifting closer to the Sun with a heliocentric radial velocity of −47.5 km/s,[5] and may come as close as 36.6 light-years in 661,000 years.[6]
The stellar classification of 36 Persei is F4III,[4] matching an aging giant star that has used up its core hydrogen. This object is used by astronomers as a spectral standard for stars with a similar class.[12] The star is a suspected variable of unknown type, ranging in visual magnitude from 5.29 down to 5.33,[13] and is a source of X-ray emission.[14] The star is 1.8 billion years old[8] with a projected rotational velocity of 28 km/s.[9] It has an estimated 1.4 times the mass of the Sun and has not yet expanded significantly, having 2.2 times the Sun's girth. The star is radiating 8.3 times the luminosity of the Sun from its photosphere at an effective temperature of 6,655 K.[7]
References
[edit]- 1 2 3 4 5 6 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 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ↑ Wallerstein, George; Bohm-Vitense, Erika; Vanture, Andrew D.; Gonzalez, Guillermo (1994). "The Lithium Content and Other Properties of F2-G5 Giants in the Hertzsprung Gap". The Astronomical Journal. 107: 2211. Bibcode:1994AJ....107.2211W. doi:10.1086/117031.
- 1 2 Ljunggren, B.; Oja, T. (1961). "The Uppsala spectral classification". Uppsala Astronomical Observatory Annual. 4 (10): 10. Bibcode:1961UppAn...4j...1L.
- 1 2 Casagrande, L.; et al. (June 2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey". Astronomy and Astrophysics. 530: A138. arXiv:1103.4651. Bibcode:2011A&A...530A.138C. doi:10.1051/0004-6361/201016276. S2CID 56118016.
- 1 2 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. Vizier catalog entry
- 1 2 3 4 5 6 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.
- 1 2 3 Aguilera-Gómez, Claudia; Ramírez, Iván; Chanamé, Julio (2018). "Lithium abundance patterns of late-F stars: An in-depth analysis of the lithium desert". Astronomy and Astrophysics. 614: A55. arXiv:1803.05922. Bibcode:2018A&A...614A..55A. doi:10.1051/0004-6361/201732209.
- 1 2 De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. S2CID 54046583. Vizier catalog entry
- ↑ "36 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-14.
- ↑ Eggleton, P. P.; Tokovinin, A. A. (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. S2CID 14878976.
- ↑ Garcia, B. (1989). "A list of MK standard stars". Bulletin d'Information du Centre de Données Stellaires. 36: 27. Bibcode:1989BICDS..36...27G.
- ↑ Samus, N. N.; et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports, 5.1, 61 (1): 80–88, Bibcode:2017ARep...61...80S, doi:10.1134/S1063772917010085, S2CID 125853869.
- ↑ Haakonsen, Christian Bernt; Rutledge, Robert E. (September 2009). "XID II: Statistical Cross-Association of ROSAT Bright Source Catalog X-ray Sources with 2MASS Point Source Catalog Near-Infrared Sources". The Astrophysical Journal Supplement. 184 (1): 138–151. arXiv:0910.3229. Bibcode:2009ApJS..184..138H. doi:10.1088/0067-0049/184/1/138. S2CID 119267456.
