F-type star · yellow-white star

HR 391

HR 391 is a yellow-white star in the constellation Cassiopeia 192 ly from Earth. Its surface is about 6,591 K, about 1.1 times the Sun's surface temperature, and it shines at 8.61× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 192 years ago.

192 lybrightness mag 6.36F4V

Also catalogued as HD 8272 · HIP 6486

6,591 K

temperature

6.36

apparent magnitude

8.61× ☉

luminosity vs Sun

F4V

spectral type

Distance & comparison with our Sun

192 years

at light speed from Earth

1.14×

as hot as the Sun

8.61×

the Sun's light output

2.51

absolute magnitude

Explore from here · roam the neighborhood

HR 391F-type

Sky regionCassiopeiathis direction

Nearest stars

Bright stars in Cassiopeia

Can you see it tonight?

BINOCULARS NEEDED

Brightness mag 6.4To see it 50 mm binocularsLook toward Cassiopeia

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.