B-type star · blue-white star
HR 6990
HR 6990 is a blue-white star in the constellation Sagittarius 493 ly from Earth. Its surface is about 10,355 K, about 1.8 times the Sun's surface temperature, and it shines at 96.92× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 493 years ago.
Also catalogued as HD 171961 · HIP 91405
10,355 K
temperature
5.78
apparent magnitude
96.92× ☉
luminosity vs Sun
B8III
spectral type
Distance & comparison with our Sun
493 years
at light speed from Earth
1.79×
as hot as the Sun
96.92×
the Sun's light output
-0.12
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.