You're likely thinking of Ursa Major, also known as the Great Bear. While it's not technically a constellation of *seven* stars, it contains a very recognizable asterism called the Big Dipper which is made up of seven stars.

Here's how it works:

* The Pointer Stars: The two stars at the end of the Big Dipper's "bowl" are called the Pointer Stars.

* Finding North: Imagine a line drawn between the Pointer Stars and extend it upwards about five times the distance between them. This line will point you towards Polaris, the North Star.

* Compass Points: Once you've located Polaris, you can use it to find the other cardinal directions:

* South: Directly opposite Polaris

* East: To the right of Polaris (when facing North)

* West: To the left of Polaris (when facing North)

Important Note: This method is most accurate in the Northern Hemisphere.