Cel Pol

The top of that Polar Axis, where the North Pole is, is called the North Celestial Pole.

The bottom of the Polar Axis where the South Pole is, is called the South Celestial Pole.

Cutting through the middle of the Polar Axis, is the Celestial Equator. 

Laying almost on top of the Polar Axis, the Celestial Meridian is a line that follows the outside of the globe going from the top and bottoms points. (North Celestial to South Celestial.)