/**
 * CSV parser and catalog store for OpenNGC data.
 */
import { type CelestialObject } from "../types.js";
/** Indexed catalog store for fast lookups. */
export interface CatalogStore {
    /** All objects keyed by primary name (e.g., "NGC0224", "IC0001", "Mel022"). */
    all: Map<string, CelestialObject>;
    /** Objects keyed by primary name — same as all. */
    byName: Map<string, CelestialObject>;
    /** Objects keyed by Messier designation (e.g., "M31"). */
    byMessier: Map<string, CelestialObject>;
    /** Objects keyed by lowercase common name (e.g., "andromeda galaxy"). */
    byCommonName: Map<string, CelestialObject>;
}
/** Get the shared catalog instance (lazy-loaded singleton). */
export declare function getCatalog(): Promise<CatalogStore>;
/** Load both NGC.csv and addendum.csv, build indexed catalog store. */
export declare function loadCatalog(): Promise<CatalogStore>;
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