K-type star · orange
25 Com
25 Com is an orange in the constellation Coma Berenices 635 ly from Earth. Its surface is about 3,892 K, about 0.7 times the Sun's surface temperature, and it shines at 173× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 635 years ago.
Also catalogued as HR 4801 · HD 109742 · HIP 61571
3,892 K
temperature
5.70
apparent magnitude
173× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
635 years
at light speed from Earth
0.67×
as hot as the Sun
173×
the Sun's light output
-0.74
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.