B-type star · blue-white star
66 Oph
66 Oph is a blue-white star in the constellation Ophiuchus 651 ly from Earth. Its surface is about 11,573 K, about 2.0 times the Sun's surface temperature, and it shines at 421× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 651 years ago.
Also catalogued as HR 6712 · HD 164284 · HIP 88149
11,573 K
temperature
4.79
apparent magnitude
421× ☉
luminosity vs Sun
B2Ve
spectral type
Distance & comparison with our Sun
651 years
at light speed from Earth
2.01×
as hot as the Sun
421×
the Sun's light output
-1.71
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.