re sunrise sunset times in apr cbis ece drexel edu jpw cbis ece drexel edu joseph wetstein writes hello i am looking for a program or algorithm that can be used to compute sunrise and sunset times i would appreciate any advice i once thought it would be easiest fitting a sine to the times but not this gave discrepancy of upto six minutes if you fit a sine series you ll get a very good fit after just three or four terms though this presumably has to do with the eccentricity of the earths orbit simon tardell ff simon nada kth se v ga v gra cgs
