B-type star · blue-white star

HR 2249

HR 2249 is a blue-white star in the constellation Canis Major 778 ly from Earth. Its surface is about 12,838 K, about 2.2 times the Sun's surface temperature, and it shines at 203× the Sun's brightness. At magnitude 6.0 it is bright enough to see with the naked eye; the light you see left it 778 years ago.

778 lybrightness mag 5.97B2/B3V

Also catalogued as HD 43544 · HIP 29771

12,838 K
temperature
5.97
apparent magnitude
203× ☉
luminosity vs Sun
B2/B3V
spectral type
Distance & comparison with our Sun
778 years
at light speed from Earth
2.22×
as hot as the Sun
203×
the Sun's light output
-0.92
absolute magnitude
Explore from here · roam the neighborhood
HR 2249B-type
Sky regionCanis Majorthis direction
StarHR 226650 ly
StarHR 224263 ly
StarHD 4439469 ly
StarAdharastar
StarWezenstar
Nearest stars
Bright stars in Canis Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 6.0To 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.