B-type star · blue-white star

HR 6494

HR 6494 is a blue-white star in the constellation Ophiuchus 738 ly from Earth. Its surface is about 10,002 K, about 1.7 times the Sun's surface temperature, and it shines at 181× the Sun's brightness. At magnitude 6.0 it is bright enough to see with the naked eye; the light you see left it 738 years ago.

738 lybrightness mag 5.98B9.5IV

Also catalogued as HD 157955 · HIP 85442

10,002 K
temperature
5.98
apparent magnitude
181× ☉
luminosity vs Sun
B9.5IV
spectral type
Distance & comparison with our Sun
738 years
at light speed from Earth
1.73×
as hot as the Sun
181×
the Sun's light output
-0.79
absolute magnitude
Explore from here · roam the neighborhood
HR 6494B-type
Sky regionOphiuchusthis direction
StarHD 16037171 ly
Star43 Oph85 ly
StarHR 666898 ly
StarSabikstar
StarZeta Ophstar
Nearest stars
Bright stars in Ophiuchus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 6.0To see it no equipment neededLook toward Ophiuchus

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.