K-type star · orange dwarf

HR 6857

HR 6857 is an orange dwarf in the constellation Ophiuchus 153 ly from Earth. Its surface is about 4,550 K, about 0.8 times the Sun's surface temperature, and it shines at 13.07× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 153 years ago.

153 lybrightness mag 5.41K2III

Also catalogued as HD 168387 · HIP 89772

4,550 K

temperature

5.41

apparent magnitude

13.07× ☉

luminosity vs Sun

K2III

spectral type

Distance & comparison with our Sun

153 years

at light speed from Earth

0.79×

as hot as the Sun

13.07×

the Sun's light output

2.06

absolute magnitude

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HR 6857K-type

Sky regionOphiuchusthis direction

Nearest stars

Bright stars in Ophiuchus

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.4To 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.