The patterns of stars seen in the sky are usually called constellations, although more acurately, a group of stars that forms a pattern in the sky is called an asterism. Astronomers use the term constellation to refer to an area of the sky.

How do you identify a star pattern?

The best way to learn them all is to observe throughout the year and study the individual stars in each constellation. To identify the constellations, most observers use star charts, which can be found online and in astronomy books. Others use planetarium software such as Stellarium or an astronomy app.

Why are star patterns useful?

Constellations are useful because they can help people to recognize stars in the sky. By looking for patterns, the stars and locations can be much easier to spot. The constellations had uses in ancient times. They were used to help keep track of the calendar.