FGK dwarfs from LAMOST DR7 and Gaia DR3 and Kepler

The empirical relations between rotation period, chromospheric activity, and age can be used to estimate stellar age. To calibrate these relations, we present a catalog,...自转周期（rotation period）、色球活动（chromospheric activity）与年龄之间的经验关系可用于估算恒星年龄（stellar age）。为校准此类经验关系，我们提供了一份星表（catalog），……