B-type star · blue-white star

HR 2855

HR 2855 is a blue-white star in the constellation Canis Major 1,250 ly from Earth. Its surface is about 12,178 K, about 2.1 times the Sun's surface temperature, and it shines at 703× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 1,250 years ago.

1,250 lybrightness mag 5.65B1II

Also catalogued as HD 58978 · HIP 36168

12,178 K

temperature

5.65

apparent magnitude

703× ☉

luminosity vs Sun

B1II

spectral type

Distance & comparison with our Sun

1,250 years

at light speed from Earth

2.11×

as hot as the Sun

703×

the Sun's light output

-2.27

absolute magnitude

Explore from here · roam the neighborhood

HR 2855B-type

Sky regionCanis Majorthis direction

Nearest stars

Bright stars in Canis Major

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.7To 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.