K-type star · orange

4 UMa

240 ly1 known planetbrightness mag 4.6K1 III
4415 K
temperature
18.11 R☉
radius
1.23 M☉
mass
115 L☉
luminosity
How long to get there · 240 ly away

At light speed, about 240 years to reach this system.

See the full survival timeline (jet to folding spacetime) →
Size vs the Sun
Sun4 UMa is 18.11× the Sun’s width
How it compares with our Sun
0.76×
as hot as the Sun
18.11×
the Sun's width
1.23×
the Sun's mass
115×
the Sun's light output
Worlds orbiting this star
Explore from here · roam the neighborhood

Zoom out: system → (soon) galaxy arm, and the host black hole at the galaxy's heart.

Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.6To see it no equipment needed

Illustration generated from 4 UMa's temperature, not a photograph.