K-type star · orange dwarf
Koeia
Koeia is an orange dwarf in the constellation Eridanus 75.1 ly from Earth. Its surface is about 3,968 K, about 0.7 times the Sun's surface temperature, and it shines at 0.04× the Sun's brightness. At magnitude 10.3 it is within reach of 4-6" (100-150 mm) telescope; the light you see left it 75 years ago.
Also catalogued as HIP 12961
3,968 K
temperature
10.25
apparent magnitude
0.04× ☉
luminosity vs Sun
M0
spectral type
Distance & comparison with our Sun
75 years
at light speed from Earth
0.69×
as hot as the Sun
0.04×
the Sun's light output
8.44
absolute magnitude
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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.