A-type star · white star

55 UMa

55 UMa is a white star in the constellation Ursa Major 192 ly from Earth. Its surface is about 8,904 K, about 1.5 times the Sun's surface temperature, and it shines at 37.60× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 192 years ago.

192 lybrightness mag 4.76A2V

Also catalogued as HR 4380 · HD 98353 · HIP 55266

8,904 K

temperature

4.76

apparent magnitude

37.60× ☉

luminosity vs Sun

A2V

spectral type

Distance & comparison with our Sun

192 years

at light speed from Earth

1.54×

as hot as the Sun

37.60×

the Sun's light output

0.91

absolute magnitude

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55 UMaA-type

Sky regionUrsa Majorthis direction

Nearest stars

Bright stars in Ursa Major

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.8To 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.