B-type star · blue-white star
10 CMa
10 CMa is a blue-white star in the constellation Canis Major. Its surface is about 12,048 K, about 2.1 times the Sun's surface temperature, and it shines at 70,469,307× the Sun's brightness. At magnitude 5.2 it is bright enough to see with the naked eye.
brightness mag 5.23B2V
Also catalogued as HR 2492 · HD 48917 · HIP 32292
12,048 K
temperature
5.23
apparent magnitude
70,469,307× ☉
luminosity vs Sun
B2V
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
2.09×
as hot as the Sun
70,469,307×
the Sun's light output
-14.77
absolute magnitude
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VISIBLE TO THE NAKED EYE
Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.