LS Canis Majoris

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LS Canis Majoris
LSCMaLightCurve.png
A light curve for LS Canis Majoris from BRITE nanosatellite data, adapted from Ratajczak et al. (2019)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Canis Major
Right ascension 07h 01m 05.94614s[2]
Declination −25° 12′ 56.2847″[2]
Apparent magnitude (V) 5.625[3]
Characteristics
Spectral type B2/3III/IV[3]
Variable type Eclipsing binary
Astrometry
Radial velocity (Rv)6.0[4] km/s
Proper motion (μ) RA: -4.79[2] mas/yr
Dec.: 4.54[2] mas/yr
Parallax (π)3.20 ± 0.33 mas
Distanceapprox. 1,000 ly
(approx. 310 pc)
Other designations
LS CMa, CD-25° 3911, HD 52670, HIP 33804, SAO 172763, GC 9253
Database references
SIMBADdata

LS Canis Majoris is an eclipsing binary star located around 1018 light years from Earth in the constellation Canis Major.[3] The apparent magnitude ranges from 5.57 to 5.6. The orbital period of binary pair and the period of light variation is 70.048 days.[1] The component stars are blue-white giant stars of spectral types B2III or IV and B3III or IV respectively.[5]

References[]

  1. ^ a b Ratajczak, M.; Pigulski, A.; Pavlovski, K. (May 2019). "Tracking massive pairs". Contributions of the Astronomical Observatory Skalnaté Pleso. 49 (2): 252–257. Retrieved 15 November 2021.
  2. ^ a b c d 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.
  3. ^ a b c "LS Canis Majoris - Eclipsing Binary". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 2 March 2014.
  4. ^ 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. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. S2CID 119323941.
  5. ^ Watson, Christopher (4 January 2010). "LS Canis Majoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 2 March 2014.


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