B-type star · blue-white star

HR 2266

HR 2266 is a blue-white star in the constellation Canis Major 796 ly from Earth. Its surface is about 12,754 K, about 2.2 times the Sun's surface temperature, and it shines at 324× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 795 years ago.

796 lybrightness mag 5.51B2/B3V

Also catalogued as HD 43955 · HIP 29941

12,754 K
temperature
5.51
apparent magnitude
324× ☉
luminosity vs Sun
B2/B3V
spectral type
Distance & comparison with our Sun
795 years
at light speed from Earth
2.21×
as hot as the Sun
324×
the Sun's light output
-1.43
absolute magnitude
Explore from here · roam the neighborhood
HR 2266B-type
Sky regionCanis Majorthis direction
StarHR 224950 ly
Star19 Lep57 ly
StarHR 224259 ly
StarAdharastar
StarWezenstar
Nearest stars
Bright stars in Canis Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.5To 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.