A-type star · white star

2 UMa

2 UMa is a white star in the constellation Ursa Major 152 ly from Earth. Its surface is about 8,109 K, about 1.4 times the Sun's surface temperature, and it shines at 12.35× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 152 years ago.

152 lybrightness mag 5.47A2m

Also catalogued as HR 3354 · HD 72037 · HIP 42080

8,109 K
temperature
5.47
apparent magnitude
12.35× ☉
luminosity vs Sun
A2m
spectral type
Distance & comparison with our Sun
152 years
at light speed from Earth
1.40×
as hot as the Sun
12.35×
the Sun's light output
2.12
absolute magnitude
Explore from here · roam the neighborhood
2 UMaA-type
Sky regionUrsa Majorthis direction
StarHR 310619 ly
Star22 UMa25 ly
StarNasti28 ly
StarAliothstar
StarDubhestar
Nearest stars
Bright stars in Ursa Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.5To 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.