A-type star · white star

Tania Borealis

Tania Borealis is a white star in the constellation Ursa Major 138 ly from Earth. Its surface is about 9,777 K, about 1.7 times the Sun's surface temperature, and it shines at 64.51× the Sun's brightness. At magnitude 3.5 it is bright enough to see with the naked eye; the light you see left it 138 years ago.

138 lybrightness mag 3.45A2IV

Also catalogued as Lambda UMa · HR 4033 · HD 89021 · HIP 50372

9,777 K

temperature

3.45

apparent magnitude

64.51× ☉

luminosity vs Sun

A2IV

spectral type

Distance & comparison with our Sun

138 years

at light speed from Earth

1.69×

as hot as the Sun

64.51×

the Sun's light output

0.33

absolute magnitude

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Tania BorealisA-type

Sky regionUrsa Majorthis direction

Nearest stars

Bright stars in Ursa Major

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 3.5To 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.