I want to describe a star-like structure as shown in the following figure. In the figure, the center object is surrounded by a number of other objects, and there are rays pointing from the center point to the surrounding objects.
The idea is that the center object can be represented by the set of the surrounding objects due to similar appearance.
I want to name this structure as a Radial Representation of the center object. Is word radial in appropriate usage? (I am writing a technical paper, and I want give this structure a proper name.)