B-type star · blue-white star
Sigma Cas
Sigma Cas is a blue-white star in the constellation Cassiopeia. Its surface is about 11,107 K, about 1.9 times the Sun's surface temperature, and it shines at 97,274,722× the Sun's brightness. At magnitude 4.9 it is bright enough to see with the naked eye.
brightness mag 4.88B1V...
Also catalogued as HR 9071 · HD 224572 · HIP 118243
11,107 K
temperature
4.88
apparent magnitude
97,274,722× ☉
luminosity vs Sun
B1V...
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
1.92×
as hot as the Sun
97,274,722×
the Sun's light output
-15.12
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.