K-type star · orange

HR 4581

HR 4581 is an orange in the constellation Ursa Major 741 ly from Earth. Its surface is about 4,403 K, about 0.8 times the Sun's surface temperature, and it shines at 188× the Sun's brightness. At magnitude 6.0 it is bright enough to see with the naked eye; the light you see left it 741 years ago.

741 lybrightness mag 5.95K1III

Also catalogued as HD 104075 · HIP 58460

4,403 K

temperature

5.95

apparent magnitude

188× ☉

luminosity vs Sun

K1III

spectral type

Distance & comparison with our Sun

741 years

at light speed from Earth

0.76×

as hot as the Sun

188×

the Sun's light output

-0.83

absolute magnitude

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HR 4581K-type

Sky regionUrsa Majorthis direction

Nearest stars

Bright stars in Ursa Major

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 6.0To 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.