A constellation is made up of stars, a troupe is made up of:

Explanation

A constellation is a grouping of stars that forms a pattern or shape in the night sky. It is a term used in astronomy to describe an apparent connection or arrangement of stars as seen from Earth. On the other hand, a troupe refers to a group or company of performers, typically actors, who work together in theatrical or artistic productions. Therefore, the analogy would be that just as a constellation is made up of stars, a troupe is made up of actors.