Posted on May 7, 2024May 7, 2024Solar Declination Angle For Soorya Kranti for any day is given by the formula = SIn -( 23.45)* cos( 365/360) *d+10 in Western Astronomy. It is Sin J – Sin L sin w in the Eastern. This is a more complicated formula and goes by d,the no of days elapsed, after 01 01.