What is the name of the line on the globe that is equidistant from the poles is the longest parallel of the Earth?

Northern hemisphere, southern hemisphere, and between them – a line called the equatorial line, or – the equator. Yes, this line encircles our entire huge planet, and its name is very modest and short. The equator is not useless. For example, latitude in geography begins with it, and also, it divides our land in half. Thanks to this division, there is a northern and southern hemisphere. This line exists only on the globe and maps, in fact, it does not exist.