B-type star · blue-white star
Kappa¹ Sgr
Kappa¹ Sgr is a blue-white star in the constellation Sagittarius 216 ly from Earth. Its surface is about 10,100 K, about 1.7 times the Sun's surface temperature, and it shines at 21.92× the Sun's brightness. At magnitude 5.6 it is bright enough to see with the naked eye; the light you see left it 216 years ago.
Also catalogued as HR 7779 · HD 193571 · HIP 100469
10,100 K
temperature
5.60
apparent magnitude
21.92× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
216 years
at light speed from Earth
1.75×
as hot as the Sun
21.92×
the Sun's light output
1.50
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.