K-type star · orange
Kaus Borealis
Kaus Borealis is an orange in the constellation Sagittarius 78.2 ly from Earth. Its surface is about 4,684 K, about 0.8 times the Sun's surface temperature, and it shines at 37.26× the Sun's brightness. At magnitude 2.8 it is bright enough to see with the naked eye; the light you see left it 78 years ago.
Also catalogued as Lambda Sgr · HR 6913 · HD 169916 · HIP 90496 · Gliese Gl 713.1
4,684 K
temperature
2.82
apparent magnitude
37.26× ☉
luminosity vs Sun
K1IIIb
spectral type
Distance & comparison with our Sun
78 years
at light speed from Earth
0.81×
as hot as the Sun
37.26×
the Sun's light output
0.92
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.