F-type star · yellow-white star

Theta UMa

Theta UMa is a yellow-white star in the constellation Ursa Major 44.0 ly from Earth. Its surface is about 6,504 K, about 1.1 times the Sun's surface temperature, and it shines at 8.53× the Sun's brightness. At magnitude 3.2 it is bright enough to see with the naked eye; the light you see left it 44 years ago.

44.0 lybrightness mag 3.17F6IV

Also catalogued as HR 3775 · HD 82328 · HIP 46853 · Gliese Gl 354A

6,504 K
temperature
3.17
apparent magnitude
8.53× ☉
luminosity vs Sun
F6IV
spectral type
Distance & comparison with our Sun
44 years
at light speed from Earth
1.13×
as hot as the Sun
8.53×
the Sun's light output
2.52
absolute magnitude
Explore from here · roam the neighborhood
Theta UMaF-type
Sky regionUrsa Majorthis direction
StarTalitha6.2 ly
Star36 UMa7.5 ly
StarPi¹ UMa12 ly
StarAliothstar
StarDubhestar
Nearest stars
Bright stars in Ursa Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 3.2To 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.