B-type star · blue-white star
18 Ori
18 Ori is a blue-white star in the constellation Orion 443 ly from Earth. Its surface is about 10,277 K, about 1.8 times the Sun's surface temperature, and it shines at 99.63× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 443 years ago.
Also catalogued as HR 1718 · HD 34203 · HIP 24555
10,277 K
temperature
5.52
apparent magnitude
99.63× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
443 years
at light speed from Earth
1.78×
as hot as the Sun
99.63×
the Sun's light output
-0.15
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.