import type { EquatorialCoordinate } from "../types.js";
export declare function angularSeparationDegrees(left: EquatorialCoordinate, right: EquatorialCoordinate): number;
export declare function positionAngleDegrees(from: EquatorialCoordinate, to: EquatorialCoordinate): number;
export declare function airmassFromAltitude(altitudeDegrees: number): number;
export declare function formatRightAscension(rightAscensionDegrees: number, precision?: number): string;
export declare function formatDeclination(declinationDegrees: number, precision?: number): string;
export declare function parseRightAscension(value: string): number;
export declare function parseDeclination(value: string): number;
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