what is the antarctic circle
Antarctic Circle. The Antarctic (or Antarctica) Circle is one of the five major circles or parallels of latitude that mark maps of the Earth.Shown on the image above with a dashed red line, this parallel of latitude sits at approximately 66.33Â° south of the Equator.ntarctic Circle. The Antarctic (or Antarctica) Circle is one of the five major circles or parallels of latitude that mark maps of the Earth.