B-type star · blue-white star

HR 903

HR 903 is a blue-white star in the constellation Fornax 408 ly from Earth. Its surface is about 10,100 K, about 1.7 times the Sun's surface temperature, and it shines at 40.44× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 408 years ago.

408 lybrightness mag 6.32A0V

Also catalogued as HD 18735 · HIP 13947

10,100 K
temperature
6.32
apparent magnitude
40.44× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
408 years
at light speed from Earth
1.75×
as hot as the Sun
40.44×
the Sun's light output
0.83
absolute magnitude
Explore from here · roam the neighborhood
HR 903B-type
Sky regionFornaxthis direction
StarHR 97429 ly
StarHR 89343 ly
StarHR 80549 ly
StarDalimstar
StarBeta Forstar
Nearest stars
Bright stars in Fornax
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.3To see it 50 mm binocularsLook toward Fornax

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.