There is no constellation with seven stars called "Seven Star Constellation". It's possible you're thinking of:

* Ursa Major (The Great Bear): This constellation is famous for its asterism, the "Big Dipper", which consists of seven bright stars.

* The Pleiades (M45): This star cluster is also called the "Seven Sisters" and is easily visible to the naked eye. It contains more than 1,000 stars, but seven are the brightest and most easily seen.

Do either of these constellations sound familiar?