I was thinking that the sun tracks a straight line across each latitude line. So at an equinox the sun will be directly above the equator for one earth revolution and the next day it will shift a few degrees and be tracking a higher latitude.
But that can't be right, we don't jump from one latitude to the next. The transition must be smooth from one latitude to the next. The latitude tracking lines would look more like a spiral cut ham.
So if I track the sun across my sky on any day, it is not moving exactly east to west but slightly skewed depending on the season.
Is this right? If so, what do you call that spiral line? brent --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
