F-type star · yellow-white star
18 Com
18 Com is a yellow-white star in the constellation Coma Berenices 201 ly from Earth. Its surface is about 6,649 K, about 1.2 times the Sun's surface temperature, and it shines at 21.44× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 201 years ago.
Also catalogued as HR 4753 · HD 108722 · HIP 60941
6,649 K
temperature
5.47
apparent magnitude
21.44× ☉
luminosity vs Sun
F5III
spectral type
Distance & comparison with our Sun
201 years
at light speed from Earth
1.15×
as hot as the Sun
21.44×
the Sun's light output
1.52
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.