A-type star · white star

40 Aur

40 Aur is a white star in the constellation Auriga 341 ly from Earth. Its surface is about 7,788 K, about 1.3 times the Sun's surface temperature, and it shines at 68.87× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 341 years ago.

341 lybrightness mag 5.35A4m

Also catalogued as HR 2143 · HD 41357 · HIP 28946

7,788 K
temperature
5.35
apparent magnitude
68.87× ☉
luminosity vs Sun
A4m
spectral type
Distance & comparison with our Sun
341 years
at light speed from Earth
1.35×
as hot as the Sun
68.87×
the Sun's light output
0.26
absolute magnitude
Explore from here · roam the neighborhood
40 AurA-type
Sky regionAurigathis direction
StarHR 211531 ly
StarHR 209639 ly
StarHR 185053 ly
StarMenkalinanstar
StarMahasimstar
Nearest stars
Bright stars in Auriga
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.3To see it no equipment neededLook toward Auriga

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.