Astronomy:HD 56456
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Short description: Star in the constellation Puppis
  | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[1] mas |
| 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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 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.
- ↑ 3.0 3.1 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. doi:10.1086/116967. Bibcode: 1994AJ....107.1556G.
- ↑ 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. doi:10.1002/asna.200710776. Bibcode: 2007AN....328..889K.
- ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. Vizier catalog entry
- ↑ 6.0 6.1 6.2 6.3 Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics 537: A120. doi:10.1051/0004-6361/201117691. Bibcode: 2012A&A...537A.120Z. 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. doi:10.1086/323920. Bibcode: 2001AJ....122.3466M. Vizier catalog entry
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