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Calculates the date of next phase
fnnction Next_Phase(date:TDateTime; phase:TMoonPhase): TDateTime;
Description Calculates the date of the next phase of the given type after the date given.
Reference This function is based upon chapters 49 (47) of "Astronomical Algorithms" for the major phases, and chapters 47 (45) and 25 (24) for the minor ones. |