The constellation Ursa Minor (Little Bear for those who prefer the vernacular) contains Polaris, the star which will point you north–if you have a mostly cloudless night.
It also contains a helpful guidepost for judging the magnitudes of other stars in your northern sky. And a test for your eyesight.
Sometimes Ursa Minor is also referred to as the “Little Dipper” and the four stars for “holding water” are each 2nd, 3rd, 5th, and 4th magnitude, moving clockwise from Kochab, the brightest of them and designated β on the chart to the left. (A detailed explanation of apparent magnitude is here.) If you can see all four stars, your seeing is pretty good.