Prof Gregorio, >> As far as the Equation of Time is concerned, the last edition of the Explanatory Supplement to the Astronomical Almanac reports (pag. 484) the following algorithm:<<
Thank you for the algorithm. No matter how hard I try I cannot make the algorithm yield the correct results. I attribute this to my incorrect math assumptions. Could you or someone else walk thru the algorithm with a real date and time, (for example 12:00 July 27, 1980) to help me find my wrong thinking? Does "remove multiples of 3600" mean "reduce to the range of 0 to 3600 by adding/subtracting multiples of 3600"? Or is the range -3600 to 3600? What is ET expressed in? decimal hours? ++ron
