package mercury import ( "b612.me/astro/internal/ephem" ) // Mercury 指定星历实例的计算模块 / computation module bound to an ephemeris instance. type Mercury struct{ inst *ephem.Instance } // NewWithInstance 创建指定星历实例的模块,nil 使用全局模型 / create a module; nil uses the global model. func NewWithInstance(inst *ephem.Instance) *Mercury { return &Mercury{inst: inst} } var defaultModule Mercury