Chi Cygni
Star
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Chi Cygni is a Mira variable star in the constellation Cygnus, and also an S-type star. It is around 500 light years away.
χ Cygni is an asymptotic giant branch star, a very cool and luminous red giant nearing the end of its life. Wikipedia
Magnitude: -0.01
Constellation: Cygnus
Luminosity: 6,000 – 9,000 L☉
Radius: 348 – 480 R☉
Mass: 2.1+1.5; −0.7 M☉
Absolute magnitude (MV): −3.2 – +7.7
Apparent magnitude (V): 3.3 – 14.2