K-type star · orange
51 Ori
51 Ori is an orange in the constellation Orion 294 ly from Earth. Its surface is about 4,422 K, about 0.8 times the Sun's surface temperature, and it shines at 77.34× the Sun's brightness. At magnitude 4.9 it is bright enough to see with the naked eye; the light you see left it 294 years ago.
Also catalogued as HR 1963 · HD 37984 · HIP 26885
4,422 K
temperature
4.90
apparent magnitude
77.34× ☉
luminosity vs Sun
K1III
spectral type
Distance & comparison with our Sun
294 years
at light speed from Earth
0.77×
as hot as the Sun
77.34×
the Sun's light output
0.13
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.