Starlike

Adjective

1. Resembling a star.

   "Pluto's starlike appearance in the telescope was an early clue that it was not the large Planet X astronomers had hoped for."

2. Resembling or characteristic of a celebrity or leading actor.
3. Convex; having the property that any line segment joining any mapped point to a specified point in the domain lies entirely in the domain.

   "the growth theorem for holomorphic starlike mappings"