B-type star · blue-white star

Iota CMa

Iota CMa is a blue-white star in the constellation Canis Major 2,509 ly from Earth. Its surface is about 10,986 K, about 1.9 times the Sun's surface temperature, and it shines at 9,290× the Sun's brightness. At magnitude 4.4 it is bright enough to see with the naked eye; the light you see left it 2,509 years ago.

2,509 lybrightness mag 4.36B3Ib/II

Also catalogued as HR 2596 · HD 51309 · HIP 33347

10,986 K

temperature

4.36

apparent magnitude

9,290× ☉

luminosity vs Sun

B3Ib/II

spectral type

Distance & comparison with our Sun

2,509 years

at light speed from Earth

1.90×

as hot as the Sun

9,290×

the Sun's light output

-5.07

absolute magnitude

Explore from here · roam the neighborhood

Iota CMaB-type

Sky regionCanis Majorthis direction

StarHR 2699310 ly

StarHR 2831350 ly

StarOmicron² CMa410 ly

StarAdharastar

StarWezenstar

Nearest stars

Bright stars in Canis Major

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.4To 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.