 Fundamental plane (spherical coordinates)

The concept of the "fundamental plane" is commonly discussed in the context of astronomy and astrophysics, particularly in relation to galaxies. However, when it comes to spherical coordinates themselves, the term may not have a widely recognized or specific meaning. ### General Explanation: In spherical coordinates, a point in three-dimensional space is described by three parameters: 1. **Radial distance** (\( r \)): The distance from the origin to the point.