B-type star · blue-white star
Omega Cas
Omega Cas is a blue-white star in the constellation Cassiopeia 701 ly from Earth. Its surface is about 11,311 K, about 2.0 times the Sun's surface temperature, and it shines at 414× the Sun's brightness. At magnitude 5.0 it is bright enough to see with the naked eye; the light you see left it 701 years ago.
Also catalogued as HR 548 · HD 11529 · HIP 9009
11,311 K
temperature
4.97
apparent magnitude
414× ☉
luminosity vs Sun
B8III
spectral type
Distance & comparison with our Sun
701 years
at light speed from Earth
1.96×
as hot as the Sun
414×
the Sun's light output
-1.69
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.