B-type star · blue-white star

55 Ori

55 Ori is a blue-white star in the constellation Orion 1,049 ly from Earth. Its surface is about 13,465 K, about 2.3 times the Sun's surface temperature, and it shines at 646× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 1,049 years ago.

1,049 lybrightness mag 5.36B2IV-V

Also catalogued as HR 2031 · HD 39291 · HIP 27658

13,465 K

temperature

5.36

apparent magnitude

646× ☉

luminosity vs Sun

B2IV-V

spectral type

Distance & comparison with our Sun

1,049 years

at light speed from Earth

2.33×

as hot as the Sun

646×

the Sun's light output

-2.18

absolute magnitude

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55 OriB-type

Sky regionOrionthis direction

Nearest stars

Bright stars in Orion

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VISIBLE TO THE NAKED EYE

Brightness mag 5.4To see it no equipment neededLook toward Orion

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.