B-type star · blue-white star

HR 8731

HR 8731 is a blue-white star in the constellation Lacerta 822 ly from Earth. Its surface is about 11,607 K, about 2.0 times the Sun's surface temperature, and it shines at 404× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 822 years ago.

822 lybrightness mag 5.34B4IIIpe

Also catalogued as HD 217050 · HIP 113327

11,607 K
temperature
5.34
apparent magnitude
404× ☉
luminosity vs Sun
B4IIIpe
spectral type
Distance & comparison with our Sun
822 years
at light speed from Earth
2.01×
as hot as the Sun
404×
the Sun's light output
-1.67
absolute magnitude
Explore from here · roam the neighborhood
HR 8731B-type
Sky regionLacertathis direction
StarHR 870548 ly
StarHR 8682110 ly
StarHR 8744110 ly
StarStelliostar
Star1 Lacstar
Nearest stars
Bright stars in Lacerta
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.3To see it no equipment neededLook toward Lacerta

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.