import type { CatalogStar, ObservationOptions, ObservedStar, Observer } from "../types.js";
export declare function observeStar(star: CatalogStar, observer: Observer, options: ObservationOptions): ObservedStar;
export declare function observeCatalog(catalog: readonly CatalogStar[], observer: Observer, options: ObservationOptions & {
    readonly magnitudeLimit?: number;
    readonly horizonLimitDegrees?: number;
}): readonly ObservedStar[];
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