K-type star · orange

39 Eri

39 Eri is an orange in the constellation Eridanus 242 ly from Earth. Its surface is about 4,397 K, about 0.8 times the Sun's surface temperature, and it shines at 54.20× the Sun's brightness. At magnitude 4.9 it is bright enough to see with the naked eye; the light you see left it 242 years ago.

242 lybrightness mag 4.87K3III

Also catalogued as HR 1318 · HD 26846 · HIP 19777

4,397 K

temperature

4.87

apparent magnitude

54.20× ☉

luminosity vs Sun

K3III

spectral type

Distance & comparison with our Sun

242 years

at light speed from Earth

0.76×

as hot as the Sun

54.20×

the Sun's light output

0.52

absolute magnitude

Explore from here · roam the neighborhood

39 EriK-type

Sky regionEridanusthis direction

Nearest stars

Bright stars in Eridanus

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.9To see it no equipment neededLook toward Eridanus

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.