HD 56456

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HD 56456
Puppis constellation map.svg
Red circle.svg

Location of HD 56456 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis
Right ascension 07h 14m 38.14062s[1]
Declination −48° 16′ 18.9420″[1]
Apparent magnitude (V) 4.76[2]
Spectral type B8.5Vn[3]
U−B color index -0.29[2]
B−V color index -0.10[2]
Radial velocity (Rv) +39.00[4] km/s
Proper motion (μ) RA: -4.40[1] mas/yr
Dec.: +0.01[1] mas/yr
Parallax (π) 8.66 ± 0.17[1] mas
Distance 377 ± 7 ly
(115 ± 2 pc)
Absolute magnitude (MV) -0.56[5]
Mass 3.39[6] M
Luminosity 220[6] L
Temperature 10,860[6] K
Rotational velocity (v sin i) 240[6] km/s
Other designations
CD-48°2807, CCDM J07146-4816A, GC 9635, GSC 08123-02767, HIP 35020, HR 2762, HD 56456, SAO 218567, WDS J07146-4816A
Database references

HD 56456 is a class B8.5V[3] (blue main-sequence) star in the constellation Puppis. Its apparent magnitude is 4.76[2] and it is approximately 377 light years away based on parallax.[1]

It has one companion, B, at magnitude 13.5 and separation 18".[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:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  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 Garrison, R. F.; Gray, R. O. (1994). "The late B-type stars: Refined MK classification, confrontation with stromgren photometry, and the effects of rotation". The Astronomical Journal. 107: 1556. Bibcode:1994AJ....107.1556G. doi:10.1086/116967. 
  4. ^ Kharchenko, N.V.; Scholz, R.-D.; Piskunov, A.E.; Röser, S.; Schilbach, E. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878Freely accessible. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. 
  5. ^ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971Freely accessible. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.  Vizier catalog entry
  6. ^ a b c d Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052Freely accessible. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691.  Vizier catalog entry
  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