F-type star · yellow-white star
21 Ori
21 Ori is a yellow-white star in the constellation Orion 202 ly from Earth. Its surface is about 6,817 K, about 1.2 times the Sun's surface temperature, and it shines at 24.43× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 202 years ago.
Also catalogued as HR 1746 · HD 34658 · HIP 24817
6,817 K
temperature
5.34
apparent magnitude
24.43× ☉
luminosity vs Sun
F5IIvar
spectral type
Distance & comparison with our Sun
202 years
at light speed from Earth
1.18×
as hot as the Sun
24.43×
the Sun's light output
1.38
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.