M-type star · red
Nu¹ Boo
Nu¹ Boo is a red in the constellation Boötes 838 ly from Earth. Its surface is about 3,664 K, about 0.6 times the Sun's surface temperature, and it shines at 555× the Sun's brightness. At magnitude 5.0 it is bright enough to see with the naked eye; the light you see left it 838 years ago.
Also catalogued as HR 5763 · HD 138481 · HIP 75973
3,664 K
temperature
5.04
apparent magnitude
555× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
838 years
at light speed from Earth
0.63×
as hot as the Sun
555×
the Sun's light output
-2.01
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.