HD 37646

Double star in the constellation Auriga
HD 37646
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 05h 41m 20.97707s[1]
Declination +29° 29′ 14.6958″[1]
Apparent magnitude (V) 6.43[2] (6.38/7.16)[3]
Characteristics
Spectral type B8IV + B9.5V[3]
U−B color index −0.39[2]
B−V color index −0.11[2]
Astrometry
Radial velocity (Rv)18.00±4.3[4] km/s
Proper motion (μ) RA: +15.94[1] mas/yr
Dec.: −26.95[1] mas/yr
Parallax (π)5.37 ± 0.81 mas[1]
Distanceapprox. 610 ly
(approx. 190 pc)
Details
HD 37646 A
Luminosity129[5] L☉
Temperature11,733[5] K
Rotational velocity (v sin i)130[6] km/s
Other designations
BD+29° 953, HD 37646, HIP 26781, HR 1945, SAO 77393.
Database references
SIMBADdata

HD 37646 is a double star in the northern constellation of Auriga. The pair have an angular separation of 26.005″.[3]

References

  1. ^ a b c d e 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
  2. ^ a b c Tolbert, Charles Ray (May 1964), "A UBV Study of 94 Wide Visual Binaries", Astrophysical Journal, 139: 1105, Bibcode:1964ApJ...139.1105T, doi:10.1086/147852
  3. ^ a b c Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976
  4. ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
  5. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352
  6. ^ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590

External links

  • HR 1945
  • CCDM J05414+2929
  • Image HD 37646
  • v
  • t
  • e
Constellation of Auriga
Stars
Bayer
Flamsteed
Variable
HR
HD
Other
Exoplanets
Star
clusters
NGC
Other
Nebulae
NGC
Other
Galaxies
Galaxy clusters
Category
Stub icon

This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it.

  • v
  • t
  • e