M-type star · red
54 Eri
54 Eri is a red in the constellation Eridanus 369 ly from Earth. Its surface is about 3,650 K, about 0.6 times the Sun's surface temperature, and it shines at 208× the Sun's brightness. At magnitude 4.3 it is bright enough to see with the naked eye; the light you see left it 369 years ago.
Also catalogued as HR 1496 · HD 29755 · HIP 21763
3,650 K
temperature
4.32
apparent magnitude
208× ☉
luminosity vs Sun
M3/M4III
spectral type
Distance & comparison with our Sun
369 years
at light speed from Earth
0.63×
as hot as the Sun
208×
the Sun's light output
-0.94
absolute magnitude
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VISIBLE TO THE NAKED EYE
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.