A-type star · white star

HR 6421

HR 6421 is a white star in the constellation Draco 140 ly from Earth. Its surface is about 8,041 K, about 1.4 times the Sun's surface temperature, and it shines at 9.82× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 140 years ago.

140 lybrightness mag 5.54F0IV

Also catalogued as HD 156295 · HIP 84183

8,041 K

temperature

5.54

apparent magnitude

9.82× ☉

luminosity vs Sun

F0IV

spectral type

Distance & comparison with our Sun

140 years

at light speed from Earth

1.39×

as hot as the Sun

9.82×

the Sun's light output

2.37

absolute magnitude

Explore from here · roam the neighborhood

HR 6421A-type

Sky regionDracothis direction

Nearest stars

Bright stars in Draco

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.5To see it no equipment neededLook toward Draco

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.