K-type star · orange

43 Oph

43 Oph is an orange in the constellation Ophiuchus 819 ly from Earth. Its surface is about 3,721 K, about 0.6 times the Sun's surface temperature, and it shines at 417× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 819 years ago.

819 lybrightness mag 5.30K4/K5III

Also catalogued as HR 6459 · HD 157236 · HIP 85084

3,721 K
temperature
5.30
apparent magnitude
417× ☉
luminosity vs Sun
K4/K5III
spectral type
Distance & comparison with our Sun
819 years
at light speed from Earth
0.64×
as hot as the Sun
417×
the Sun's light output
-1.70
absolute magnitude
Explore from here · roam the neighborhood
43 OphK-type
Sky regionOphiuchusthis direction
StarHD 16037184 ly
StarHR 649485 ly
Star52 Oph99 ly
StarSabikstar
StarZeta Ophstar
Nearest stars
Bright stars in Ophiuchus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.3To 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.