public void UranusPerihelionTest(double year, double expectedPerihelion)
        {
            long   k          = AASPlanetPerihelionAphelion.UranusK(year);
            double perihelion = AASPlanetPerihelionAphelion.UranusPerihelion(k);

            Assert.Equal(expectedPerihelion, perihelion);
        }
        public void SaturnAphelionTest(double year, double expectedAphelion)
        {
            long   k        = AASPlanetPerihelionAphelion.SaturnK(year);
            double aphelion = AASPlanetPerihelionAphelion.SaturnAphelion(k);

            Assert.Equal(expectedAphelion, aphelion);
        }
        public void EarthPerihelionTest(long k, bool bBarycentric, double expectedPerihelion)
        {
            double perihelion = AASPlanetPerihelionAphelion.EarthPerihelion(k, bBarycentric);

            Assert.Equal(expectedPerihelion, perihelion);
        }
        public void VenusKTest(double year, long expectedK)
        {
            long k = AASPlanetPerihelionAphelion.VenusK(year);

            Assert.Equal(expectedK, k);
        }