car-te-sian star map
/kärˈtēZHən star mæp/
This system is analogous to a three-dimensional version of the familiar x-y plane used in mathematics, but it extends into the third dimension to account for the depth of space. Using a Cartesian system allows for precise and accurate representation of star positions, enabling calculations of distances, angles, and other spatial relationships between celestial objects.
Relationship to other coordinate systems:
While star charts commonly use spherical coordinates (right ascension and declination), the Cartesian system provides a way to represent the same information in a different format. It's essentially the Cartesian equivalent of the spherical coordinates, with the same fundamental x-y plane and primary direction.
Source: Cindy McKean