LS Canis Majoris

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LS Canis Majoris
Observation data
Epoch J2000      Equinox J2000
Constellation Hercules
Right ascension 07h 01m 05.94614s[1]
Declination −25° 12′ 56.2847″[1]
Apparent magnitude (V) 5.625[2]
Spectral type B2/3III/IV[2]
Variable type Eclipsing binary
Radial velocity (Rv) 6.0[3] km/s
Proper motion (μ) RA: -4.79[1] mas/yr
Dec.: 4.54[1] mas/yr
Parallax (π) 3.20 ± 0.33 mas
Distance approx. 1,000 ly
(approx. 310 pc)
Other designations
LS CMa, CD-25° 3911, HD 52670, HIP 33804, SAO 172763, GC 9253
Database references

LS Canis Majoris is an eclipsing binary star located around 1018 light years from Earth in the constellation Canis Major.[2] The apparent magnitude ranges from 5.57 to 5.6. The component stars are blue-white giant stars of spectral types B2III or IV and B3III or IV respectively.[4]


  1. ^ a b c d van Leeuwen, F.; et al. (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 "LS Canis Majoris - Eclipsing Binary". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 2 March 2014. 
  3. ^ Kharchenko, N. V.; et al. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. Bibcode:2007AN....328..889K. arXiv:0705.0878Freely accessible. doi:10.1002/asna.200710776. 
  4. ^ Watson, Christopher (4 January 2010). "LS Canis Majoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 2 March 2014.