Long-term photometry and spectroscopy of EE Cep

EE Cep is an unusual long-period (5.6yr) eclipsing binary discovered during the mid-twentieth century. It undergoes almost-grey eclipses that vary in terms of both depth and...仙王座EE（EE Cep）是一颗反常的长周期（5.6年）食双星（eclipsing binary），于20世纪中期被发现。该天体存在近乎中性灰的食相，且食的深度与……均存在变化。