B-type star · blue-white star

HR 5731

HR 5731 is a blue-white star in the constellation Draco 447 ly from Earth. Its surface is about 10,556 K, about 1.8 times the Sun's surface temperature, and it shines at 65.64× the Sun's brightness. At magnitude 6.0 it is bright enough to see with the naked eye; the light you see left it 447 years ago.

447 lybrightness mag 5.99A0sp...

Also catalogued as HD 137389 · HIP 75256

10,556 K
temperature
5.99
apparent magnitude
65.64× ☉
luminosity vs Sun
A0sp...
spectral type
Distance & comparison with our Sun
447 years
at light speed from Earth
1.83×
as hot as the Sun
65.64×
the Sun's light output
0.31
absolute magnitude
Explore from here · roam the neighborhood
HR 5731B-type
Sky regionDracothis direction
StarHR 555237 ly
StarHR 584139 ly
StarHR 558940 ly
StarEltaninstar
StarAthebynestar
Nearest stars
Bright stars in Draco
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 6.0To see it no equipment neededLook toward Draco

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.