K-type star · orange
23 Oph
23 Oph is an orange in the constellation Ophiuchus 241 ly from Earth. Its surface is about 4,515 K, about 0.8 times the Sun's surface temperature, and it shines at 38.37× the Sun's brightness. At magnitude 5.2 it is bright enough to see with the naked eye; the light you see left it 241 years ago.
Also catalogued as HR 6280 · HD 152601 · HIP 82730
4,515 K
temperature
5.23
apparent magnitude
38.37× ☉
luminosity vs Sun
K2III
spectral type
Distance & comparison with our Sun
241 years
at light speed from Earth
0.78×
as hot as the Sun
38.37×
the Sun's light output
0.89
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.