Kepler-223

Kepler-223 (KOI-730, KIC 10227020) is a G5V star with an extrasolar planetary system discovered by the Kepler mission.

[5][3] The confirmed planetary system was first detected by the Kepler mission, and contains four planets.

[6] This system was initially believed to contain two co-orbital planets orbiting the star at approximately the same orbital distance every 9.8 days, with one permanently locked 60° behind the other in one of the two Trojan Lagrangian points.

However, follow-up study of the system revealed that an alternative configuration, with the four planets having orbital periods in the ratio 8:6:4:3 is better supported by the data.

This configuration does not contain co-orbital planets,[9] and has been confirmed by further observations.