Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
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Constellation | Caelum |
Right ascension | 05 03 53.95236 |
Declination | −41° 44′ 41.8259″ |
Apparent magnitude (V) | 6.30±0.01 |
Characteristics | |
Spectral type | F8 V |
U−B color index | +0.04 |
B−V color index | +0.53 |
Astrometry | |
Radial velocity (Rv) | 29.8±0.9 km/s |
Proper motion (μ) | RA: +22.005 mas/yr Dec.: +158.650 mas/yr |
Parallax (π) | 31.6204 ± 0.0176 mas |
Distance | 103.15 ± 0.06 ly (31.63 ± 0.02 pc) |
Absolute magnitude (MV) | +3.79 |
Details | |
Mass | 1.25 M☉ |
Radius | 1.33±0.03 R☉ |
Luminosity | 2.44±0.01 L☉ |
Surface gravity (log g) | 4.25 cgs |
Temperature | 6,227±68 K |
Metallicity | −0.04 dex |
Rotational velocity (v sin i) | 8 km/s |
Age | 3.46 Gyr |
Other designations | |
27 G. Caeli[13], CD−41°1690, CPD−41°621, GC 6204, HD 32820, HIP 23555, HR 1651, SAO 217153 | |
Database references | |
SIMBAD | data |
HD 32820, also known as HR 1651, is a yellowish-white hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 6.3, placing it near the limit of naked eye visibility. The object is located relatively close at a distance of 103 light years based on parallax measurements from Gaia DR3, but is receding with a heliocentric radial velocity of 29.8 km/s.
HD 32820 has a stellar classification of F8 V, indicating that it is an ordinary F-type main-sequence star that is generating energy via hydrogen fusion at its core. It has 125% the mass of the Sun and 133% of its radius. It radiates double the luminosity of the Sun from its photosphere at an effective temperature of 6,227 K. HD 32820 is said to be 3.46 billion years old, slightly younger than the Sun, and has a near solar iron abundance. The star spins modestly with a projected rotational velocity of 8 km/s and is chromospherically inactive
References
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- ^ 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.
- ^ Malaroda, S. (August 1975). "Study of the F-type 1 MK spectral types". The Astronomical Journal. 80: 637. Bibcode:1975AJ.....80..637M. doi:10.1086/111786. ISSN 0004-6256.
- ^ Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2 June 2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637. eISSN 1538-3881. ISSN 0004-6256.
- ^ Cousins, A. W. J.; Lagerwey, H.C.; Shillington, F. A.; Stobie, R. S. (1969). "Photometry of Three δ Scuti Variables". Monthly Notes of the Astronomical Society of Southern Africa. 28: 25. Bibcode:1969MNSSA..28...25C. ISSN 0024-8266.
- ^ Steinmetz, Matthias; et al. (27 July 2020). "The Sixth Data Release of the Radial Velocity Experiment (Rave). II. Stellar Atmospheric Parameters, Chemical Abundances, and Distances". The Astronomical Journal. 160 (2): 83. arXiv:2002.04512. Bibcode:2020AJ....160...83S. doi:10.3847/1538-3881/ab9ab8. eISSN 1538-3881.
- 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.
- ^ Mortier, A.; Santos, N. C.; Sousa, S.; Israelian, G.; Mayor, M.; Udry, S. (March 2013). "On the functional form of the metallicity-giant planet correlation". Astronomy & Astrophysics. 551: A112. arXiv:1302.1851. Bibcode:2013A&A...551A.112M. doi:10.1051/0004-6361/201220707. eISSN 1432-0746. ISSN 0004-6361.
- ^ Masana, E.; Jordi, C.; Ribas, I. (10 April 2006). "Effective temperature scale and bolometric corrections from 2MASS photometry". Astronomy & Astrophysics. 450 (2): 735–746. arXiv:astro-ph/0601049. Bibcode:2006A&A...450..735M. doi:10.1051/0004-6361:20054021. eISSN 1432-0746. ISSN 0004-6361.
- Allende Prieto, C.; Lambert, D. L. (December 1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. ISSN 0004-6361.
- ^ Ibukiyama, A.; Arimoto, N. (21 October 2002). "HIPPARCOS age-metallicity relation of the solar neighbourhood disc stars". Astronomy & Astrophysics. 394 (3): 927–941. arXiv:astro-ph/0207108. Bibcode:2002A&A...394..927I. doi:10.1051/0004-6361:20021157. eISSN 1432-0746. ISSN 0004-6361.
- ^ Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (16 April 2004). "The Geneva-Copenhagen survey of the Solar neighbourhood". Astronomy & Astrophysics. 418 (3): 989–1019. arXiv:astro-ph/0405198. Bibcode:2004A&A...418..989N. doi:10.1051/0004-6361:20035959. eISSN 1432-0746. ISSN 0004-6361.
- Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
- "HD 28454". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved October 6, 2022.
- Pace, G. (22 February 2013). "Chromospheric activity as age indicator". Astronomy & Astrophysics. 551: L8. arXiv:1301.5651. Bibcode:2013A&A...551L...8P. doi:10.1051/0004-6361/201220364. eISSN 1432-0746. ISSN 0004-6361.
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