•How
 close to the North Pole do we need to go before the Summer Solstice sun becomes
 a “circumpolar star” and is above the horizon all day?
 •Within 23.5o of the pole:    THE ARCTIC CIRCLE
 •
 •How close to the equator do we need to get
 before the Summer Solstice sun passes directly
 rather than somewhat to the south:
 •Within 23.5o of the equator:  The TROPICS