13. Altitude of Sun June 21st
Estimate Latitude
60 degrees N latitude
will have about a 30 degree
Angle of insolation
23.5 degrees N latitude
will have direct or a 90 degree
42 degrees N latitude Angle of insolation
will have about a 70 degree
angle of insolation
14. Seasons
March 21st
Dec 21st
June 21st
Sept 21st