B-type star · blue-white star

57 Hya

57 Hya is a blue-white star in the constellation Hydra 447 ly from Earth. Its surface is about 10,213 K, about 1.8 times the Sun's surface temperature, and it shines at 81.36× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 447 years ago.

447 lybrightness mag 5.76B9.5V

Also catalogued as HR 5517 · HD 130274 · HIP 72378

10,213 K

temperature

5.76

apparent magnitude

81.36× ☉

luminosity vs Sun

B9.5V

spectral type

Distance & comparison with our Sun

447 years

at light speed from Earth

1.77×

as hot as the Sun

81.36×

the Sun's light output

0.07

absolute magnitude

Explore from here · roam the neighborhood

57 HyaB-type

Sky regionHydrathis direction

Nearest stars

Bright stars in Hydra

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.8To see it no equipment neededLook toward Hydra

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.