K-type star · orange

31 Boo

31 Boo is an orange in the constellation Boötes 537 ly from Earth. Its surface is about 4,762 K, about 0.8 times the Sun's surface temperature, and it shines at 269× the Sun's brightness. At magnitude 4.9 it is bright enough to see with the naked eye; the light you see left it 537 years ago.

537 lybrightness mag 4.86G8IIIvar

Also catalogued as HR 5480 · HD 129312 · HIP 71832

4,762 K

temperature

4.86

apparent magnitude

269× ☉

luminosity vs Sun

G8IIIvar

spectral type

Distance & comparison with our Sun

537 years

at light speed from Earth

0.83×

as hot as the Sun

269×

the Sun's light output

-1.22

absolute magnitude

Explore from here · roam the neighborhood

31 BooK-type

Sky regionBoötesthis direction

Nearest stars

Bright stars in Boötes

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.9To see it no equipment neededLook toward Boötes

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.