B-type star · blue-white star
Sigma Ori
Sigma Ori is a blue-white star in the constellation Orion 1,073 ly from Earth. Its surface is about 13,348 K, about 2.3 times the Sun's surface temperature, and it shines at 2,927× the Sun's brightness. At magnitude 3.8 it is bright enough to see with the naked eye; the light you see left it 1,073 years ago.
Also catalogued as HR 1931 · HD 37468 · HIP 26549
13,348 K
temperature
3.77
apparent magnitude
2,927× ☉
luminosity vs Sun
O9.5V...
spectral type
Distance & comparison with our Sun
1,073 years
at light speed from Earth
2.31×
as hot as the Sun
2,927×
the Sun's light output
-3.82
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
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.