/**
 * Core data types for the astronomy-oracle MCP server.
 */
/** Map of OpenNGC object type codes to human-readable names. */
export declare const OBJECT_TYPES: {
    readonly "*": "Star";
    readonly "**": "Double Star";
    readonly "*Ass": "Stellar Association";
    readonly OCl: "Open Cluster";
    readonly GCl: "Globular Cluster";
    readonly "Cl+N": "Cluster + Nebula";
    readonly G: "Galaxy";
    readonly GPair: "Galaxy Pair";
    readonly GTrpl: "Galaxy Triplet";
    readonly GGroup: "Galaxy Group";
    readonly PN: "Planetary Nebula";
    readonly HII: "HII Region";
    readonly DrkN: "Dark Nebula";
    readonly EmN: "Emission Nebula";
    readonly Neb: "Nebula";
    readonly RfN: "Reflection Nebula";
    readonly SNR: "Supernova Remnant";
    readonly Nova: "Nova";
    readonly NonEx: "Non-Existent";
    readonly Dup: "Duplicate";
    readonly Other: "Other";
};
/** Valid object type codes from the OpenNGC catalog. */
export type ObjectTypeCode = keyof typeof OBJECT_TYPES;
/** A parsed celestial object from the catalog. */
export interface CelestialObject {
    name: string;
    type: ObjectTypeCode;
    typeName: string;
    ra: number;
    dec: number;
    constellation: string;
    magnitude: number | null;
    surfaceBrightness: number | null;
    majorAxis: number | null;
    minorAxis: number | null;
    positionAngle: number | null;
    hubbleType: string | null;
    messier: string | null;
    ngcCrossRef: string | null;
    icCrossRef: string | null;
    commonName: string | null;
    otherIdentifiers: string | null;
}
/** Supported catalog identifiers. */
export type Catalog = "messier" | "caldwell" | "ngc" | "ic";
/** Visibility information for an object at a given time and location. */
export interface VisibilityInfo {
    altitude: number;
    azimuth: number;
    riseTime: Date | null;
    transitTime: Date | null;
    setTime: Date | null;
    isCircumpolar: boolean;
    neverRises: boolean;
}
/** Time window within an observing session. */
export type SessionWindow = "evening" | "midnight" | "predawn";
/** An object scored and scheduled within an observing session. */
export interface SessionObject {
    object: CelestialObject;
    peakAltitude: number;
    transitTime: Date;
    window: SessionWindow;
    score: number;
}
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