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HD 70555

Summary

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]

HD 70555
Location of HD 70555 (circled)
Observation data
Epoch J2000      Equinox J2000
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 mas[1]
Distance1,010 ± 80 ly
(310 ± 20 pc)
Absolute magnitude (MV)-2.60[5]
Details
Mass7.9[6] M☉
Luminosity2,230[5] L☉
Surface gravity (log g)1.67[7] cgs
Temperature4,265[8] K
Metallicity [Fe/H]-0.12[5] dex
Rotational velocity (v sin i)3.8[9] km/s
Other designations
w Puppis, CD-32°5185, FK5 1219, GC 11400, GSC 07126-03938, HIP 40945, HR 3282, HD 70555, SAO 199118
Database references
SIMBADdata

w Puppis should not be confused with W Puppis (Uppercase, Bayer designation),[10] or W Puppis (Uppercase, Variable star designation).[11]

References edit

  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. 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 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.
  4. ^ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336.
  5. ^ a b c 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. S2CID 119257644. Vizier catalog entry
  6. ^ 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. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873. Vizier catalog entry
  7. ^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv:1605.07384. Bibcode:2016A&A...591A.118S. doi:10.1051/0004-6361/201628497. S2CID 119258214.
  8. ^ 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. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352. Vizier catalog entry
  9. ^ 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. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. S2CID 54046583. Vizier catalog entry
  10. ^ W Puppis
  11. ^ W Puppis