public void KTest(double year, double expectedK)
        {
            double k = AASMoonPhases.K(year);

            Assert.Equal(expectedK, k);
        }
        public void TruePhaseTest(double k, double expectedTruePhase)
        {
            double truePhase = AASMoonPhases.TruePhase(k);

            Assert.Equal(expectedTruePhase, truePhase);
        }