There isn't a constellation that is made up of *only* 10 stars. Constellations are large areas of the sky that contain many stars, often dozens or even hundreds.

However, some constellations have a prominent asterism, which is a smaller group of stars within the constellation that forms a recognizable pattern.

For example:

* Ursa Minor (Little Dipper) has 7 prominent stars, including Polaris (the North Star).

* Orion is known for its belt, which consists of 3 stars.

It's possible that you are thinking of a particular asterism, but without more information, it's difficult to pinpoint the constellation you're referring to.