B-type star · blue-white star

Aludra

Aludra is a blue-white star in the constellation Canis Major 1,989 ly from Earth. Its surface is about 11,295 K, about 2.0 times the Sun's surface temperature, and it shines at 33,916× the Sun's brightness. At magnitude 2.5 it is bright enough to see with the naked eye; the light you see left it 1,989 years ago.

1,989 lybrightness mag 2.45B5Ia

Also catalogued as Eta CMa · HR 2827 · HD 58350 · HIP 35904

11,295 K
temperature
2.45
apparent magnitude
33,916× ☉
luminosity vs Sun
B5Ia
spectral type
Distance & comparison with our Sun
1,989 years
at light speed from Earth
1.96×
as hot as the Sun
33,916×
the Sun's light output
-6.48
absolute magnitude
Explore from here · roam the neighborhood
AludraB-type
Sky regionCanis Majorthis direction
Star29 CMa190 ly
StarHR 2704230 ly
StarHR 2743270 ly
StarAdharastar
StarWezenstar
Nearest stars
Bright stars in Canis Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 2.5To see it no equipment neededLook toward Canis 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.