M-type star · red dwarf
Luyten's Star
Luyten's Star is a red dwarf in the constellation Canis Minor 12.4 ly from Earth. Its surface is about 3,687 K, about 0.6 times the Sun's surface temperature, and it shines at 0.001× the Sun's brightness. At magnitude 9.8 it is within reach of 4-6" (100-150 mm) telescope; the light you see left it 12 years ago.
Also catalogued as HIP 36208 · Gliese Gl 273
3,687 K
temperature
9.84
apparent magnitude
0.001× ☉
luminosity vs Sun
M5
spectral type
Distance & comparison with our Sun
12 years
at light speed from Earth
0.64×
as hot as the Sun
0.001×
the Sun's light output
11.94
absolute magnitude
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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.