Sun´s Eccentricity
Move Z until:
- arc(Spring-Summer) measures aprox. 93.1 degrees;
- arc(Summer-Autumn) mearures aprox. 91.2 degrees;
- arc(Autumn-Winter) measures aprox. 86.9 degrees;
- arc(Winter-Spring) measures aprox. 88.8 degrees.
When all conditions are respected:
- what is the lenght of [ZT]?
- what is the ratio between 60 and the lenght of [ZT]?