B-type star · blue-white star

HR 2819

HR 2819 is a blue-white star in the constellation Canis Major 1,326 ly from Earth. Its surface is about 12,712 K, about 2.2 times the Sun's surface temperature, and it shines at 995× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 1,326 years ago.

1,326 lybrightness mag 5.40B3V

Also catalogued as HD 58155 · HIP 35795

12,712 K
temperature
5.40
apparent magnitude
995× ☉
luminosity vs Sun
B3V
spectral type
Distance & comparison with our Sun
1,326 years
at light speed from Earth
2.20×
as hot as the Sun
995×
the Sun's light output
-2.65
absolute magnitude
Explore from here · roam the neighborhood
HR 2819B-type
Sky regionCanis Majorthis direction
StarHR 2786140 ly
StarHR 2968170 ly
StarHR 2911180 ly
StarAdharastar
StarWezenstar
Nearest stars
Bright stars in Canis Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.4To 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.