K-type star · orange
20 Boo
20 Boo is an orange in the constellation Boötes 187 ly from Earth. Its surface is about 4,255 K, about 0.7 times the Sun's surface temperature, and it shines at 33.17× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 187 years ago.
Also catalogued as HR 5370 · HD 125560 · HIP 70027
4,255 K
temperature
4.84
apparent magnitude
33.17× ☉
luminosity vs Sun
K3III
spectral type
Distance & comparison with our Sun
187 years
at light speed from Earth
0.74×
as hot as the Sun
33.17×
the Sun's light output
1.05
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.