Answer the following question given this paragraph: 

Humans have been studying the night sky for thousands of years. Knowing the motions of stars helped people keep track of seasons. With this information they could know when to plant crops. Stars were so important that the patterns they made in the sky were named. These patterns are called constellations . Even now, constellations help astronomers know where they are looking in the night sky.


Q: What are observable patterns of stars found in the night sky called?


A:
constellations