HD 37017

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V1046 Orionis
Observation data
Epoch J2000      Equinox J2000
Constellation Orion
Right ascension 05h 35m 21.86623s[1]
Declination −04° 29′ 39.0250″[1]
Apparent magnitude (V) 6.553[2]
Spectral type B1.5 Vp He strong[3]
U−B color index −0.79[4]
B−V color index −0.14[4]
Radial velocity (Rv) +32±2[5] km/s
Proper motion (μ) RA: 1.25[1] mas/yr
Dec.: 0.48[1] mas/yr
Parallax (π) 2.63 ± 0.73[1] mas
Distance approx. 1,200 ly
(approx. 400 pc)
Mass 8.50±0.53[2] M
Luminosity 3,754[2] L
Temperature 23,700[2] K
Rotational velocity (v sin i) 165[3] km/s
Other designations
BD-04° 1183, HD 37017, HIP 26233, HR 1890, SAO 132317.[6]
Database references

HD 37017, also known as V1046 Orionis, is a spectroscopic binary in the equatorial constellation of Orion. The two stars orbit each other with a period of 18.6556 days and an eccentricity of 0.31.[7] The system is part of star cluster NGC 1981.[8]


  1. ^ a b c d e van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752Freely accessible, doi:10.1051/0004-6361:20078357 
  2. ^ a b c d Hohle, M. M.; et al. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten, 331 (4): 349–360, Bibcode:2010AN....331..349H, arXiv:1003.2335Freely accessible, doi:10.1002/asna.200911355 
  3. ^ a b Abt, Helmut A.; et al. (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590 
  4. ^ a b Walker, M. F. (February 1969), "Studies of extremely young clusters. V. Stars in the vicinity of the Orion nebula", Astrophysical Journal, 155: 447, Bibcode:1969ApJ...155..447W, doi:10.1086/149881 
  5. ^ Blaauw, A.; et al. (April 1963), "Radial Velocities of B-Type Stars in the Nearest Associations.", Astrophysical Journal, 137: 791, Bibcode:1963ApJ...137..791B, doi:10.1086/147556 
  6. ^ "V1046 Ori -- Spectroscopic binary", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2015-06-25 
  7. ^ Ducati, J. R.; et al. (January 2011), "The mass ratio and initial mass functions in spectroscopic binaries", Astronomy and Astrophysics, 525: 9, Bibcode:2011A&A...525A..26D, doi:10.1051/0004-6361/200913895, A26 
  8. ^ Maia, F. F. S.; et al. (September 2010), "Characterization and photometric membership of the open cluster NGC1981", Monthly Notices of the Royal Astronomical Society, 407 (3): 1875–1886, Bibcode:2010MNRAS.407.1875M, arXiv:1005.3047Freely accessible, doi:10.1111/j.1365-2966.2010.17034.x 

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