A-type star · white star

31 UMa

31 UMa is a white star in the constellation Ursa Major 208 ly from Earth. Its surface is about 9,165 K, about 1.6 times the Sun's surface temperature, and it shines at 27.62× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 208 years ago.

208 lybrightness mag 5.27A3III

Also catalogued as HR 3917 · HD 85795 · HIP 48682

9,165 K

temperature

5.27

apparent magnitude

27.62× ☉

luminosity vs Sun

A3III

spectral type

Distance & comparison with our Sun

208 years

at light speed from Earth

1.59×

as hot as the Sun

27.62×

the Sun's light output

1.25

absolute magnitude

Explore from here · roam the neighborhood

31 UMaA-type

Sky regionUrsa Majorthis direction

StarHR 409637 ly

StarHR 380941 ly

StarTania Australis43 ly

StarAliothstar

StarDubhestar

Nearest stars

Bright stars in Ursa Major

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.3To see it no equipment neededLook toward Ursa Major

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.