B-type star · blue-white star

HR 8434

HR 8434 is a blue-white star in the constellation Cepheus 645 ly from Earth. Its surface is about 11,424 K, about 2.0 times the Sun's surface temperature, and it shines at 95.41× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 645 years ago.

645 lybrightness mag 6.38A0III

Also catalogued as HD 210071 · HIP 109124

11,424 K

temperature

6.38

apparent magnitude

95.41× ☉

luminosity vs Sun

A0III

spectral type

Distance & comparison with our Sun

645 years

at light speed from Earth

1.98×

as hot as the Sun

95.41×

the Sun's light output

-0.10

absolute magnitude

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HR 8434B-type

Sky regionCepheusthis direction

Nearest stars

Bright stars in Cepheus

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BINOCULARS NEEDED

Brightness mag 6.4To see it 50 mm binocularsLook toward Cepheus

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.