export declare function getMeanAnomaly(T: number): number;
export declare function getEccentricity(T: number): number;
export declare function getLongitudeOfPerihelionOfOrbit(T: number): number;
export declare function getMeanObliquityOfEcliptic(T: number): number;
export declare function getTrueObliquityOfEcliptic(T: number): number;
export declare function getNutationInLongitude(T: number): number;
export declare function getNutationInObliquity(T: number): number;