/**
 * Options for solar time calculation (currently empty, reserved for future options)
 */
export interface SolarTimeOptions {
}
/**
 * Result of solar time calculation
 */
export interface SolarTimeResult {
    /**
     * Local Solar Time - ISO 8601 string with timezone (e.g., "2025-11-01T13:17:52-05:00")
     */
    LST: string;
    /**
     * Time Correction - Minutes to adjust from standard time to solar time
     */
    TC: number;
    /**
     * Equation of Time - Earth's orbit eccentricity correction in minutes
     */
    EoT: number;
    /**
     * Day Angle - Position in Earth's orbit in degrees
     */
    B: number;
    /**
     * Local Standard Time Meridian - Reference longitude for the time zone
     */
    LSTM: number;
    /**
     * Solar Declination - Angle between sun and equatorial plane in degrees
     * Range: -23.45° to +23.45°
     */
    declination: number;
}
/**
 * Result of sun position calculation
 */
export interface SunPositionResult {
    /**
     * Sunrise time as ISO 8601 string, null if sun doesn't rise (polar night)
     */
    sunrise: string | null;
    /**
     * Sunset time as ISO 8601 string, null if sun doesn't set (midnight sun)
     */
    sunset: string | null;
    /**
     * Solar noon time as ISO 8601 string - when sun is highest
     */
    solarNoon: string;
    /**
     * Solar azimuth angle in degrees (0° = North, 90° = East, 180° = South, 270° = West)
     * Range: 0° to 360°
     */
    azimuth: number;
    /**
     * Solar elevation/altitude angle in degrees above horizon
     * Range: -90° to +90° (negative = below horizon)
     */
    elevation: number;
    /**
     * Solar zenith angle in degrees from vertical
     * Range: 0° to 180° (complement of elevation)
     */
    zenith: number;
}