A-type star · white star
21 LMi
21 LMi is a white star in the constellation Leo Minor 92.1 ly from Earth. Its surface is about 8,241 K, about 1.4 times the Sun's surface temperature, and it shines at 11.11× the Sun's brightness. At magnitude 4.5 it is bright enough to see with the naked eye; the light you see left it 92 years ago.
Also catalogued as HR 3974 · HD 87696 · HIP 49593 · Gliese Gl 378.3
8,241 K
temperature
4.49
apparent magnitude
11.11× ☉
luminosity vs Sun
A7V
spectral type
Distance & comparison with our Sun
92 years
at light speed from Earth
1.43×
as hot as the Sun
11.11×
the Sun's light output
2.24
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.