Type of Projection: This is an azimuthal projection, which means it maps the surface of a sphere onto a flat plane. It is also a perspective projection, conceptually created by projecting the globe’s features onto a plane using a single light source.
Placement of Light Source: The “light source” is located at the pole that is opposite the point of tangency (the central point) on the globe. This specific placement is key to the projection’s unique properties.
Name Breakdown:
- Stereographic: Refers to the perspective projection method.
- Equatorial: Indicates that the projection’s central point, or the point of tangency, is located on the Earth’s equator.
- Zenithal: A synonym for “azimuthal,” meaning it projects the globe onto a plane.
Primary Characteristic: The most significant characteristic of this projection is that it is conformal. This means it preserves local angles and shapes, making it useful for navigation and certain scientific applications.