Astronomy:HD 63922
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Short description: Binary star system in the constellation Puppis
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 49m 14.29536s[1] |
| Declination | −46° 22′ 23.5422″[1] |
| Apparent magnitude (V) | 4.11[2] |
| Characteristics | |
| Spectral type | B0III[3] |
| U−B color index | −1.01[2] |
| B−V color index | −0.18[2] |
| Astrometry | |
| Radial velocity (Rv) | +24.00[4] km/s |
| Proper motion (μ) | RA: −4.37[1] mas/yr Dec.: +8.66[1] mas/yr |
| Parallax (π) | 1.98 ± 0.28[1] mas |
| Distance | approx. 1,600 ly (approx. 510 pc) |
| Absolute magnitude (MV) | −4.37[5] |
| Details | |
| Mass | 19.3[6] M☉ |
| Luminosity | 3209[5] L☉ |
| Surface gravity (log g) | 3.95[7] cgs |
| Temperature | 31,200[7] K |
| Metallicity [Fe/H] | +0.16[5] dex |
| Rotational velocity (v sin i) | 49[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 63922 is a class B0III[3] (blue giant) star in the constellation Puppis. Its apparent magnitude is 4.11[2] and it is approximately 1600 light years away based on parallax.[1]
It is a multiple star; the primary has one close companion, Ab, at 0.3" separation and magnitude 7.19, and a more distant one, B, at 59.1" and 8.79 magnitude.[8]
A loose agglomerate of stars around P Puppis was identified in 2008 as a young open cluster. Ten member stars were identified, including P Puppis itself and the naked-eye stars QS Puppis and HD 63578.[9] The cluster is part of the Vela OB2 association and at least 32 members have since been identified. It is thought that the cluster is only about 10 million years old.[10]
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 3.2 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050. Bibcode: 1995yCat.5050....0H.
- ↑ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication (Carnegie Institution for Science). Bibcode: 1953GCRV..C......0W.
- ↑ 5.0 5.1 5.2 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
- ↑ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society 410 (1): 190–200. doi:10.1111/j.1365-2966.2010.17434.x. Bibcode: 2011MNRAS.410..190T. Vizier catalog entry
- ↑ 7.0 7.1 Nieva, M.-F.; Przybilla, N. (2012). "Present-day cosmic abundances". Astronomy & Astrophysics 539: A143. doi:10.1051/0004-6361/201118158. Bibcode: 2012A&A...539A.143N.
- ↑ 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
- ↑ Caballero, J.A.; Dinis, L. (2008). "A revisit to agglomerates of early-type Hipparcos stars". Astronomische Nachrichten 329 (8): 801–834. doi:10.1002/asna.200811024. Bibcode: 2008AN....329..801C.
- ↑ Armstrong, Joseph J.; Wright, Nicholas J.; Jeffries, R. D.; Jackson, R. J.; Cantat-Gaudin, Tristan (2022). "The structure and 3D kinematics of vela OB2". Monthly Notices of the Royal Astronomical Society 517 (4): 5704–5720. doi:10.1093/mnras/stac3101. Bibcode: 2022MNRAS.517.5704A.
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