HD 32820

Last updated
HD 32820
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Caelum
Right ascension 05h 03m 53.95236s [1]
Declination −41° 44′ 41.8259″ [1]
Apparent magnitude  (V)6.30±0.01 [2]
Characteristics
Spectral type F8 V [3] [4]
U−B color index +0.04 [5]
B−V color index +0.53 [5]
Astrometry
Radial velocity (Rv)29.8±0.9 [6]  km/s
Proper motion (μ)RA: +22.005  mas/yr [1]
Dec.: +158.650  mas/yr [1]
Parallax (π)31.6204 ± 0.0176  mas [1]
Distance 103.15 ± 0.06  ly
(31.63 ± 0.02  pc)
Absolute magnitude  (MV)+3.79 [7]
Details
Mass 1.25 [8]   M☉
Radius 1.33±0.03 [9]   R☉
Luminosity 2.44±0.01 [1]   L☉
Surface gravity (log g)4.25 [10]   cgs
Temperature 6,227±68 [9]   K
Metallicity [Fe/H]−0.04 [11]   dex
Rotational velocity (v sin i)8 [12]  km/s
Age 3.46 [11]   Gyr
Other designations
27 G. Caeli [13] , CD−41°1690, CPD−41°621, GC  6204, HD  32820, HIP  23555, HR  1651, SAO  217153 [14]
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, [2] 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, [1] but is receding with a heliocentric radial velocity of 29.8  km/s . [6]

HD 32820 has a stellar classification of F8 V, [3] [4] 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 [8] and 133% of its radius. [9] It radiates double the luminosity of the Sun [1] from its photosphere at an effective temperature of 6,227  K . [9] HD 32820 is said to be 3.46 billion years old, [11] slightly younger than the Sun , and has a near solar iron abundance. [11] The star spins modestly with a projected rotational velocity of 8  km/s [12] and is chromospherically inactive [15]

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References

  1. 1 2 3 4 5 6 7 8 Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics . arXiv: 2208.00211 . doi: 10.1051/0004-6361/202243940 . Gaia DR3 record for this source at VizieR.
  2. 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.
  3. 1 2 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.
  4. 1 2 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.
  5. 1 2 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.
  6. 1 2 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.
  7. ↑ 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.
  8. 1 2 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.
  9. 1 2 3 4 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.
  10. ↑ 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.
  11. 1 2 3 4 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.
  12. 1 2 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.
  13. ↑ 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.
  14. ↑ "HD 28454". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved October 6, 2022.
  15. ↑ 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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