B-type star · blue-white star

Lambda Per

Lambda Per is a blue-white star in the constellation Perseus 422 ly from Earth. Its surface is about 10,265 K, about 1.8 times the Sun's surface temperature, and it shines at 291× the Sun's brightness. At magnitude 4.3 it is bright enough to see with the naked eye; the light you see left it 422 years ago.

422 lybrightness mag 4.25A0IVn

Also catalogued as HR 1261 · HD 25642 · HIP 19167

10,265 K

temperature

4.25

apparent magnitude

291× ☉

luminosity vs Sun

A0IVn

spectral type

Distance & comparison with our Sun

422 years

at light speed from Earth

1.78×

as hot as the Sun

291×

the Sun's light output

-1.31

absolute magnitude

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Lambda PerB-type

Sky regionPerseusthis direction

Nearest stars

Bright stars in Perseus

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VISIBLE TO THE NAKED EYE

Brightness mag 4.3To see it no equipment neededLook toward Perseus

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.