B-type star · blue-white star

HR 2231

HR 2231 is a blue-white star in the constellation Orion 654 ly from Earth. Its surface is about 11,993 K, about 2.1 times the Sun's surface temperature, and it shines at 130× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 654 years ago.

654 lybrightness mag 6.07B6V

Also catalogued as HD 43285 · HIP 29728

11,993 K
temperature
6.07
apparent magnitude
130× ☉
luminosity vs Sun
B6V
spectral type
Distance & comparison with our Sun
654 years
at light speed from Earth
2.08×
as hot as the Sun
130×
the Sun's light output
-0.44
absolute magnitude
Explore from here · roam the neighborhood
HR 2231B-type
Sky regionOrionthis direction
StarHR 217445 ly
StarHD 4278759 ly
StarHR 247486 ly
StarHatysastar
StarTabitstar
Nearest stars
Bright stars in Orion
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.1To see it 50 mm binocularsLook toward Orion

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.