B-type star · blue-white star

Iota CrB

Iota CrB is a blue-white star in the constellation Corona Borealis 312 ly from Earth. Its surface is about 10,795 K, about 1.9 times the Sun's surface temperature, and it shines at 81.06× the Sun's brightness. At magnitude 5.0 it is bright enough to see with the naked eye; the light you see left it 312 years ago.

312 lybrightness mag 4.98A0p...

Also catalogued as HR 5971 · HD 143807 · HIP 78493

10,795 K

temperature

4.98

apparent magnitude

81.06× ☉

luminosity vs Sun

A0p...

spectral type

Distance & comparison with our Sun

312 years

at light speed from Earth

1.87×

as hot as the Sun

81.06×

the Sun's light output

0.08

absolute magnitude

Explore from here · roam the neighborhood

Iota CrBB-type

Sky regionCorona Borealisthis direction

Nearest stars

Bright stars in Corona Borealis

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.0To see it no equipment neededLook toward Corona Borealis

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.