Astronomy:HD 70555
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Short description: Star in the constellation Puppis
Observation data Equinox J2000.0]] (ICRS) | |
---|---|
Constellation | Puppis |
Right ascension | 08h 21m 23.02665s[1] |
Declination | −33° 03′ 15.7147″[1] |
Apparent magnitude (V) | 4.83[2] |
Characteristics | |
Spectral type | K2.5II-III[3] |
U−B color index | +1.60[2] |
B−V color index | +1.45[2] |
Astrometry | |
Radial velocity (Rv) | +33.20[4] km/s |
Proper motion (μ) | RA: -11.11[1] mas/yr Dec.: +2.85[1] mas/yr |
Parallax (π) | 3.24 ± 0.25[1] mas |
Distance | 1,010 ± 80 ly (310 ± 20 pc) |
Absolute magnitude (MV) | -2.60[5] |
Details | |
Mass | 7.9[6] M☉ |
Luminosity | 2,230[5] L☉ |
Surface gravity (log g) | 1.67[7] cgs |
Temperature | 4,265[8] K |
Metallicity [Fe/H] | -0.12[5] dex |
Rotational velocity (v sin i) | 3.8[9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 70555 (w Puppis) is a class K2.5II-III[3] (orange giant) star in the constellation Puppis. Its apparent magnitude is 4.83[2] and it is approximately 1,010 light years away based on parallax.[1]
w Puppis should not be confused with W Puppis (Uppercase, Bayer designation),[10] or W Puppis (Uppercase, Variable star designation).[11]
References
- ↑ Jump up to: 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
- ↑ Jump up to: 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.
- ↑ Jump up to: 3.0 3.1 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.
- ↑ Jump up to: 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
- ↑ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics 591: A118. doi:10.1051/0004-6361/201628497. Bibcode: 2016A&A...591A.118S.
- ↑ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–357. doi:10.1111/j.1365-2966.2012.21873.x. Bibcode: 2012MNRAS.427..343M. Vizier catalog entry
- ↑ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics 561: A126. doi:10.1051/0004-6361/201220762. Bibcode: 2014A&A...561A.126D. Vizier catalog entry
- ↑ W Puppis
- ↑ W Puppis
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