A-type star · white star

HR 817

HR 817 is a white star in the constellation Fornax 357 ly from Earth. Its surface is about 9,652 K, about 1.7 times the Sun's surface temperature, and it shines at 34.20× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 357 years ago.

357 lybrightness mag 6.21A1V

Also catalogued as HD 17168 · HIP 12786

9,652 K

temperature

6.21

apparent magnitude

34.20× ☉

luminosity vs Sun

A1V

spectral type

Distance & comparison with our Sun

357 years

at light speed from Earth

1.67×

as hot as the Sun

34.20×

the Sun's light output

1.01

absolute magnitude

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HR 817A-type

Sky regionFornaxthis direction

Nearest stars

Bright stars in Fornax

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BINOCULARS NEEDED

Brightness mag 6.2To see it 50 mm binocularsLook toward Fornax

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.