B-type star · blue-white star
21 Lyn
21 Lyn is a blue-white star in the constellation Lynx 274 ly from Earth. Its surface is about 10,138 K, about 1.8 times the Sun's surface temperature, and it shines at 87.82× the Sun's brightness. At magnitude 4.6 it is bright enough to see with the naked eye; the light you see left it 274 years ago.
Also catalogued as HR 2818 · HD 58142 · HIP 36145
10,138 K
temperature
4.61
apparent magnitude
87.82× ☉
luminosity vs Sun
A1V
spectral type
Distance & comparison with our Sun
274 years
at light speed from Earth
1.76×
as hot as the Sun
87.82×
the Sun's light output
-0.01
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.