It covers the 48 constellations and their associated stars, providing detailed interpretations of their influence on personality and fate.

The method relies on very tight conjunctions ( orb) between fixed stars and natal planets or angles.

The most referenced and seminal text on this topic is The Fixed Stars and Constellations in Astrology (originally published 1923). Here is a review based on the available information: Overview & Key Features

The study of fixed stars adds nuance to natal chart interpretation, typically using stars that hold steady positions, moving less than 1∘1 raised to the composed with power in a lifetime.