Function calculateEclipseHalfDuration

calculateEclipseHalfDuration(
    diameter1: number,
    diameter2: number,
    latitude: number,
    moonMotionMin: number,
    sunMotionMin: number,
): number
Calculate half-duration (Sthiti) of eclipse in nadis.
Parameters
- diameter1: number
- diameter2: number
- latitude: number
- moonMotionMin: number
- sunMotionMin: number
Returns number