What is another word for polar circle?
Pronunciation: [pˈə͡ʊlə sˈɜːkə͡l] (IPA) 
The polar circle, also known as the Arctic circle, is an imaginary line that runs parallel to the equator at a latitude of 66.5 degrees north. This line marks the boundary where the sun remains above the horizon for a full 24 hours during the summer solstice in the northern hemisphere. Other synonyms for the polar circle include the northern circle, the boreal circle, and the Tropic of Cancer. In the southern hemisphere, the equivalent line is called the Antarctic circle or the southern circle. These circles represent important points on the globe, marking the boundaries between different climate zones and seasonal patterns.
