func Test_GetSunRadiusForEarth(t *testing.T) {
	jd := calendarutil.ToJulianDateHMS(2016, 2, 16, 6, 6, 6.0)
	R := GetSunRadiusForEarth(jd)
	t.Log(R)
}
func Test_GetSunEclipticLatitudeForEarth(t *testing.T) {
	jd := calendarutil.ToJulianDateHMS(2016, 2, 16, 6, 6, 6.0)
	B := GetSunEclipticLatitudeForEarth(jd)
	t.Log(B)
}