10 Canis Majoris

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10 Canis Majoris
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Canis Major
Right ascension  06h 44m 28.467s[1]
Declination −31° 04′ 13.89″[1]
Apparent magnitude (V) +5.23
Spectral type B2IIIe
U−B color index −0.93
B−V color index −0.12
Variable type γ Cas
Radial velocity (Rv)+34 km/s
Proper motion (μ) RA: -3.20 ± 0.38[1] mas/yr
Dec.: 5.59 ± 0.51[1] mas/yr
Parallax (π)0.90 ± 0.46[1] mas
Distanceapprox. 4,000 ly
(approx. 1,100 pc)
Other designations
FT Canis Majoris, HR 2492, HD 48917, CD−30° 3484, HIP 32292, SAO 197149, GC 8827, CCDM 06445-3104
Database references

10 Canis Majoris is a star in the constellation Canis Major. It is approximately 4000 light years from Earth.

10 Canis Majoris is a blue-white B-type giant with a mean apparent magnitude of +5.23. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +5.13 to +5.44.


  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. Vizier catalog entry