It's 1/360 of a complete circle of longitude or latitude.
it is a latitude
The Arctic Circle is a line of latitude. As of 2012, it is approximately 66° 33' 44" N latitude.
The Antarctic Circle is the collection of all the points on earth that are 23.5 degreessouth of the equator ... 23.5 degrees south latitude.
Lines of latitude stay where they are and do not run anywhere. Every one of them forms a complete circle around the world.
Lines of latitude stay where they are and do not run anywhere. Every one of them forms a complete circle around the world.
They are both imaginary lines which circle the earth!
The Prime Meridian and the meridian of 180° longitude combine to forma great circle on the Earth. Each of them alone is a semi-circle.Every parallel of latitude also circles the Earth completely, but among those,only the equator is a great circle.
The Antarctic Circle is a line of latitude -- which moves, according to the Earth's wobble. As of 10 March 2016, it runs 66°33′46.1″ as a line of latitude and crosses all degrees of E and W longitude on Earth.
Latitude: N 36° 8' 33.9972" / Longitude: W 86° 52' 15.8268"
Lines of latitude and longitude are called great circles because they are the largest circles that can be drawn on a sphere, having a center at the sphere's center. Great circles are important for navigation as they represent the shortest distance between two points on the surface of a sphere.
The pattern of lines that circle the globe east-west are called lines of latitude, while the lines that circle the globe north-south are called lines of longitude. Together, they form a grid system that helps in locating points on the Earth's surface.