HD 59612

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HD 59612
Puppis constellation map.svg
Red circle.svg
Location of HD 59612 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis
Right ascension  07h 29m 51.41199s[1]
Declination −23° 01′ 27.4317″[1]
Apparent magnitude (V) 4.86[2]
Spectral type A5 Ib[3]
U−B color index +0.17[2]
B−V color index +0.24[2]
Radial velocity (Rv)35.00[4] km/s
Proper motion (μ) RA: −3.42[1] mas/yr
Dec.: 5.20[1] mas/yr
Parallax (π)1.05 ± 0.28[1] mas
Distanceapprox. 3,100 ly
(approx. 1,000 pc)
Absolute magnitude (MV)−5.10[5]
Mass12.9[3] M
Radius44[5] R
Luminosity10,864[5] L
Surface gravity (log g)1.78[3] cgs
Temperature8,620[3] K
Metallicity [Fe/H]+0.02[6] dex
Rotational velocity (v sin i)27[5] km/s
Age15[3] Myr
Other designations
BD-22°1897, CD-22°4587, CCDM J07299-2301AB, GC 10043, HD 59612, HIP 36431, HR 2874, SAO 173864, WDS J07299-2301AB
Database references

HD 59612 is a class A5Ib supergiant star in the constellation Puppis. Its apparent magnitude is 4.86[2] and it is approximately 3,100 light years away based on parallax.[1]

It has one companion, B, at magnitude 10.7 and separation 3.0".[7]


  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. ^ a b c d 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.
  3. ^ a b c d e Lyubimkov, Leonid S.; Lambert, David L.; Korotin, Sergey A.; Poklad, Dmitry B.; Rachkovskaya, Tamara M.; Rostopchin, Sergey I. (2011). "Nitrogen enrichment in atmospheres of A- and F-type supergiants". Monthly Notices of the Royal Astronomical Society. 410: 1774. arXiv:1009.0054. Bibcode:2011MNRAS.410.1774L. doi:10.1111/j.1365-2966.2010.17560.x.
  4. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  5. ^ a b c d Verdugo, E.; Talavera, A.; Gómez De Castro, A. I. (1999). "Understanding A-type supergiants. II. Atmospheric parameters and rotational velocities of Galactic A-type supergiants". Astronomy and Astrophysics. 346: 819. Bibcode:1999A&A...346..819V.
  6. ^ Gray, R. O.; Graham, P. W.; Hoyt, S. R. (2001). "The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. II. Basic Parameters of Program Stars and the Role of Microturbulence". The Astronomical Journal. 121 (4): 2159. Bibcode:2001AJ....121.2159G. doi:10.1086/319957.
  7. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry