B-type star · blue-white star

HR 2704

HR 2704 is a blue-white star in the constellation Canis Major 1,843 ly from Earth. Its surface is about 12,650 K, about 2.2 times the Sun's surface temperature, and it shines at 1,472× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 1,843 years ago.

1,843 lybrightness mag 5.69B2V

Also catalogued as HD 54912 · HIP 34579

12,650 K

temperature

5.69

apparent magnitude

1,472× ☉

luminosity vs Sun

B2V

spectral type

Distance & comparison with our Sun

1,843 years

at light speed from Earth

2.19×

as hot as the Sun

1,472×

the Sun's light output

-3.07

absolute magnitude

Explore from here · roam the neighborhood

HR 2704B-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.