A-type star · white star

Alcor

81.7 lybrightness mag 3.99A5V SB

Also catalogued as 80 UMa · HR 5062 · HD 116842 · HIP 65477 · Gliese GJ 3785

8,411 K

temperature

3.99

apparent magnitude

13.87× ☉

luminosity vs Sun

A5V SB

spectral type

Distance & comparison with our Sun

82 years

at light speed from Earth

1.46×

as hot as the Sun

13.87×

the Sun's light output

2.00

absolute magnitude

Explore from here · roam the neighborhood

AlcorA-type

Sky regionUrsa Majorthis direction

Nearest stars

79Zet UMa →3.0 ly apart
78 UMa →5.5 ly apart
Alioth →6.5 ly apart
HR 5148 →7.3 ly apart
HR 4867 →11 ly apart
Megrez →14 ly apart

Bright stars in Ursa Major

Alioth →mag 1.8
Dubhe →mag 1.8
Alkaid →mag 1.9
Merak →mag 2.3
Phecda →mag 2.4
52Psi UMa →mag 3.0
Tania Australis →mag 3.1
Talitha →mag 3.1

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.0To 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.