To find constellations youâll need a star chart, these give you a snapshot of what the night sky will look like at any one time and at any one location. The star chart above shows you how the night sky will look above most of the United States at 8 pm in late January.irst find the famous Big Dipper, which is part of the constellation Ursa Major and visible all year in the Northern hemisphere, draw an imaginary line through the outer two stars of the Big Dipperâs bowl and you will come to Polaris, which is the brightest star in the constellation of Ursa Minor.