We have seen that the stereographic projection of any circle of the sphere is itself a circle.
The employment of stereographic projection is also interesting.
Notwithstanding the facility of construction, the stereographic projection is not much used in map-making.
The kind of projection most extensively used is the “stereographic projection.”
The stereographic projection, however, represents the poles and zone-circles on a plane surface and not on a spherical surface.
A stereographic projection of a rhombohedral crystal is given in fig. 72.
To construct a stereographic projection of the sphere on the horizon of a given place.