F-type star · yellow-white star
20 Oph
20 Oph is a yellow-white star in the constellation Ophiuchus 104 ly from Earth. Its surface is about 6,490 K, about 1.1 times the Sun's surface temperature, and it shines at 12.41× the Sun's brightness. At magnitude 4.6 it is bright enough to see with the naked eye; the light you see left it 104 years ago.
Also catalogued as HR 6243 · HD 151769 · HIP 82369
6,490 K
temperature
4.64
apparent magnitude
12.41× ☉
luminosity vs Sun
F7IV
spectral type
Distance & comparison with our Sun
104 years
at light speed from Earth
1.12×
as hot as the Sun
12.41×
the Sun's light output
2.12
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.