a method that returns the earth radius in km . the value currently defaults to 6356.9 km if not set . concode_field_sep double earthRadius concode_elem_sep double GEOMETRIC_ZENITH concode_elem_sep double solarRadius concode_elem_sep double refraction concode_field_sep void setRefraction concode_elem_sep double getUTCSunrise concode_elem_sep double getSolarRadius concode_elem_sep Object clone concode_elem_sep double getRefraction concode_elem_sep AstronomicalCalculator getDefault concode_elem_sep void setSolarRadius concode_elem_sep double getUTCSunset concode_elem_sep String getCalculatorName concode_elem_sep void setEarthRadius concode_elem_sep double getElevationAdjustment concode_elem_sep double adjustZenith
double function ( ) { return earthRadius ; }