There isn't a fixed number of stars in a supercluster. It's a vast structure encompassing many galaxies, each with its own vast number of stars.

Here's a breakdown:

* Galaxies: A typical galaxy contains billions to trillions of stars.

* Superclusters: A supercluster can contain dozens to hundreds of galaxies.

Therefore, the number of stars in a supercluster would be the sum of stars in all the galaxies it contains. This can range from tens of trillions to hundreds of trillions of stars.

Here are some important points to consider:

* Superclusters are constantly evolving: Galaxies within a supercluster are moving and interacting, so the number of stars can change over time.

* Observational limitations: We haven't observed all the galaxies in every supercluster, so our estimates are based on the galaxies we can see.

* Dark matter: Superclusters also contain a significant amount of dark matter, which doesn't emit light but contributes to the gravitational structure of the supercluster.

Therefore, while we can give a broad estimate, the exact number of stars in a supercluster is constantly changing and difficult to pinpoint with complete accuracy.