HD 61831

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HD 61831
Puppis constellation map.svg
Red circle.svg

Location of HD 61831 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis
Right ascension 07h 39m 27.33834s[1]
Declination −38° 18′ 28.8786″[1]
Apparent magnitude (V) 4.84[2]
Spectral type B2.5V[3]
U−B color index -0.66[2]
B−V color index -0.19[2]
Radial velocity (Rv) +26.40[4] km/s
Proper motion (μ) RA: -21.11[1] mas/yr
Dec.: +15.81[1] mas/yr
Parallax (π) 5.87 ± 0.16[1] mas
Distance 560 ± 20 ly
(170 ± 5 pc)
Absolute magnitude (MV) -1.51[5]
Mass 6.5[6] M
Luminosity 1,300[5] L
Temperature 16,849[5] K
Metallicity [Fe/H] 0.00[7] dex
Rotational velocity (v sin i) 138[3] km/s
Other designations
d1 Puppis, CD-38°3531, GC 10311, GSC 07644-02700, HIP 37297, HR 2961, HD 61831, SAO 198253
Database references

HD 61831 (d1 Puppis) is a class B2.5V[3] (blue dwarf) star in the constellation Puppis. Its apparent magnitude is 4.84[2] and it is approximately 556 light years away based on parallax.[1]


  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. Bibcode:2007A&A...474..653V. arXiv:0708.1752Freely accessible. doi:10.1051/0004-6361:20078357.  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 c 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 Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336. 
  5. ^ a b c Silaj, J.; Landstreet, J. D. (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. Bibcode:2014A&A...566A.132S. arXiv:1407.4531Freely accessible. doi:10.1051/0004-6361/201321468. 
  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: 190. Bibcode:2011MNRAS.410..190T. arXiv:1007.4883Freely accessible. doi:10.1111/j.1365-2966.2010.17434.x.  Vizier catalog entry
  7. ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. Bibcode:2012AstL...38..771G. arXiv:1606.08814Freely accessible. doi:10.1134/S1063773712120031.  Vizier catalog entry