B-type star · blue-white star
HR 2800
HR 2800 is a blue-white star in the constellation Canis Major 2,490 ly from Earth. Its surface is about 12,945 K, about 2.2 times the Sun's surface temperature, and it shines at 2,021× the Sun's brightness. At magnitude 6.0 it is bright enough to see with the naked eye; the light you see left it 2,490 years ago.
Also catalogued as HD 57593 · HIP 35611
12,945 K
temperature
6.00
apparent magnitude
2,021× ☉
luminosity vs Sun
B3V
spectral type
Distance & comparison with our Sun
2,490 years
at light speed from Earth
2.24×
as hot as the Sun
2,021×
the Sun's light output
-3.41
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
VISIBLE TO THE NAKED EYE
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.