B-type star · blue-white star

Mu Eri

Mu Eri is a blue-white star in the constellation Eridanus 522 ly from Earth. Its surface is about 12,449 K, about 2.2 times the Sun's surface temperature, and it shines at 555× the Sun's brightness. At magnitude 4.0 it is bright enough to see with the naked eye; the light you see left it 522 years ago.

522 lybrightness mag 4.01B5IV

Also catalogued as HR 1520 · HD 30211 · HIP 22109

12,449 K

temperature

4.01

apparent magnitude

555× ☉

luminosity vs Sun

B5IV

spectral type

Distance & comparison with our Sun

522 years

at light speed from Earth

2.16×

as hot as the Sun

555×

the Sun's light output

-2.01

absolute magnitude

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Mu EriB-type

Sky regionEridanusthis direction

Nearest stars

Bright stars in Eridanus

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VISIBLE TO THE NAKED EYE

Brightness mag 4.0To see it no equipment neededLook toward Eridanus

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.