A-type star · white star

HR 2791

HR 2791 is a white star in the constellation Puppis 463 ly from Earth. Its surface is about 9,812 K, about 1.7 times the Sun's surface temperature, and it shines at 140× the Sun's brightness. At magnitude 5.2 it is bright enough to see with the naked eye; the light you see left it 463 years ago.

463 lybrightness mag 5.24A0V

Also catalogued as HD 57240 · HIP 35393

9,812 K

temperature

5.24

apparent magnitude

140× ☉

luminosity vs Sun

A0V

spectral type

Distance & comparison with our Sun

463 years

at light speed from Earth

1.70×

as hot as the Sun

140×

the Sun's light output

-0.52

absolute magnitude

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HR 2791A-type

Sky regionPuppisthis direction

Nearest stars

Bright stars in Puppis

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VISIBLE TO THE NAKED EYE

Brightness mag 5.2To see it no equipment neededLook toward Puppis

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.