HD 56456
  | |
| 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] |
| Characteristics | |
| Spectral type | B8.5Vn[3] |
| U−B color index | -0.29[2] |
| B−V color index | -0.10[2] |
| Astrometry | |
| 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 mas[1] |
| Distance | 377 ± 7 ly (115 ± 2 pc) |
| Absolute magnitude (MV) | -0.56[5] |
| Details | |
| 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 | |
| Database references | |
| SIMBAD | data |
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]
References
- ^ 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. Vizier catalog entry
- ^ 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.
- ^ 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.
- ^ 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:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776.
- ^ 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. Vizier catalog entry
- ^ a b c d Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. Vizier catalog entry
- ^ 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
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