K-type star · orange

Kochab

Kochab is an orange in the constellation Ursa Minor 131 ly from Earth. Its surface is about 3,847 K, about 0.7 times the Sun's surface temperature, and it shines at 209× the Sun's brightness. At magnitude 2.1 it is bright enough to see with the naked eye; the light you see left it 131 years ago.

131 lybrightness mag 2.07K4IIIvar

Also catalogued as Beta UMi · HR 5563 · HD 131873 · HIP 72607

3,847 K
temperature
2.07
apparent magnitude
209× ☉
luminosity vs Sun
K4IIIvar
spectral type
Distance & comparison with our Sun
131 years
at light speed from Earth
0.67×
as hot as the Sun
209×
the Sun's light output
-0.95
absolute magnitude
Explore from here · roam the neighborhood
KochabK-type
Sky regionUrsa Minorthis direction
StarHR 617319 ly
StarHR 626721 ly
StarHR 559622 ly
StarPherkadstar
StarEpsilon UMistar
Nearest stars
Bright stars in Ursa Minor
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 2.1To see it no equipment neededLook toward Ursa Minor

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.