A-type star · white star

15 UMa

15 UMa is a white star in the constellation Ursa Major 94.0 ly from Earth. Its surface is about 7,539 K, about 1.3 times the Sun's surface temperature, and it shines at 11.89× the Sun's brightness. At magnitude 4.5 it is bright enough to see with the naked eye; the light you see left it 94 years ago.

94.0 lybrightness mag 4.46Am

Also catalogued as HR 3619 · HD 78209 · HIP 44901 · Gliese GJ 3534

7,539 K

temperature

4.46

apparent magnitude

11.89× ☉

luminosity vs Sun

spectral type

Distance & comparison with our Sun

94 years

at light speed from Earth

1.31×

as hot as the Sun

11.89×

the Sun's light output

2.16

absolute magnitude

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15 UMaA-type

Sky regionUrsa Majorthis direction

Nearest stars

Bright stars in Ursa Major

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VISIBLE TO THE NAKED EYE

Brightness mag 4.5To 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.