HD 32515

Last updated
HD 32515
Observation data
Epoch J2000       Equinox J2000
Constellation Caelum [1]
Right ascension 05h 02m 22.8045s [2]
Declination −31° 46′ 16.8028″ [2]
Apparent magnitude  (V)5.90 ± 0.01 [3]
Characteristics
Spectral type K2 III [4]
B−V color index +1.17 [5]
Astrometry
Radial velocity (Rv)29 ± 4 [6] km/s
Proper motion (μ)RA: −6.866 [2] mas/yr
Dec.: +84.982 [2] mas/yr
Parallax (π)10.0579±0.0324  mas [2]
Distance 324 ± 1  ly
(99.4 ± 0.3  pc)
Absolute magnitude  (MV)+1.02 [1]
Details
Mass 1.52 [7]   M☉
Radius 11.9 [2]   R☉
Luminosity 56.3+2.6
−2.5 [8]   L☉
Surface gravity (log g)2.44+0.11
−0.10 [9]   cgs
Temperature 4540 ± 100 [8]   K
Metallicity [Fe/H]0.00 [8]   dex
Rotational velocity (v sin i)1.4±1.2 [10]  km/s
Age 4.59 [7]   Gyr
Other designations
26 G. Caeli, CD−31°2163, CPD−31°684, GC 6169, HD 32515, HIP 23446, HR 1635, SAO 195509
Database references
SIMBAD data

HD 32515 (HR 1635) is a solitary star located in the southern constellation Caelum. It has an apparent magnitude of 5.9, [3] making it faintly visible to the naked eye under ideal conditions. The star is situated at a distance of 326 light years [2] but is receding with a heliocentric radial velocity of 29.4  km/s . [6]

HD 32515 has a stellar classification of K2 III, [4] indicating that it is an early K-type giant star. HD 32515 has an angular diameter of 1.03±0.07  mas [11] (after limb darkening correction); this yields a diameter 11.9 times that of the Sun at its estimated distance. At present, it has 152% [7] of the Sun's mass and shines at 56.3 [8] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,540 K, [8] giving it an orange glow. HD 32515 has a similar metallicity [8] and age [7] to the Sun and spins slowly with a projected rotational velocity of 1.4  km/s

References

  1. 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. XHIP record for this object at VizieR.
  2. 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.
  3. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (1 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.
  4. 1 2 Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40.0° to -26.0°. Bibcode:1982mcts.book.....H.
  5. ↑ Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
  6. 1 2 Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053 . Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN   1063-7737. S2CID   119231169.
  7. 1 2 3 4 Luck, R. Earle (1 September 2015). "Abundances in the Local Region. I. G and K Giants". The Astronomical Journal. 150 (3): 88. arXiv: 1507.01466 . Bibcode:2015AJ....150...88L. doi:10.1088/0004-6256/150/3/88. ISSN   0004-6256. S2CID   118505114.
  8. 1 2 3 4 5 6 Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (1 January 2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv: 1910.12732 . Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360. ISSN   0004-6361. S2CID   204907220.
  9. ↑ Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevic, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (1 August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv: 1904.11302 . Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN   0004-6361. S2CID   131780028.
  10. ↑ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (1 January 2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv: 1312.3474 . Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. ISSN   0004-6361. S2CID   54046583.
  11. ↑ Lafrasse, Sylvain; Mella, Guillaume; Bonneau, Daniel; Duvert, Gilles; Delfosse, Xavier; Chesneau, Olivier; Chelli, Alain (16 July 2010). "Building the 'JMMC Stellar Diameters Catalog' using SearchCal". Optical and Infrared Interferometry II. Vol. 7734. pp. 77344E. arXiv: 1009.0137 . Bibcode:2010SPIE.7734E..4EL. doi:10.1117/12.857024. S2CID   32097037.
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