Well, it's not truly a circle, earth's axis tilt also changes. We could quite easily show small circles around the ecliptic poles, this refers to a "current" circle. (ArchaeoLines (untypical) or main program?)
Well, it's not truly a circle, earth's axis tilt also changes. We could quite easily show small circles around the ecliptic poles, this refers to a "current" circle. (ArchaeoLines (untypical) or main program?)