Kepler-87
Kepler-87 is a star slightly more massive than the Sun and it is nearing the end of its main-sequence period. Planetary system  
Kepler-87 hosts four planets, two confirmed (Kepler-87b, Kepler-87c and two unconfirmed (Kepler-87d, Kepler-87e). It is the farthest system from the Sun with two unconfirmed planet candidates at 4021 light-years. References 

Cygnus (constellation)
G-type subgiants
Planetary systems with two confirmed planets
Kepler objects of interest