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KY Cygni

The red supergiant belongs to the same category as VV Cephei and the Garnet Star. In contrast to these its gigantic diameter is undisputable. Maybe it is bigger than the both.

Constellation: Cygnus
Distance: 5200 light-years
Spectral class: M4
Visual magnitude: 13.3
Luminosity: 300 000 * Sun
Mass: circa 25 * Sun
Diameter: 1500 * Sun

Back: List of big and giant stars part 2 		    KY Cygni
KY Cygni compared with Betelgeuse and the Solar System.
Graphic: Lowell Observatory
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