B-type star · blue-white star

HR 2446

HR 2446 is a blue-white star in the constellation Columba 1,144 ly from Earth. Its surface is about 11,779 K, about 2.0 times the Sun's surface temperature, and it shines at 553× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 1,144 years ago.

1,144 lybrightness mag 5.72B6IV

Also catalogued as HD 47500 · HIP 31637

11,779 K
temperature
5.72
apparent magnitude
553× ☉
luminosity vs Sun
B6IV
spectral type
Distance & comparison with our Sun
1,144 years
at light speed from Earth
2.04×
as hot as the Sun
553×
the Sun's light output
-2.01
absolute magnitude
Explore from here · roam the neighborhood
HR 2446B-type
Sky regionColumbathis direction
StarHR 247571 ly
StarHD 46347140 ly
StarHR 2170180 ly
StarPhactstar
StarWaznstar
Nearest stars
Bright stars in Columba
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Columba

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.