Which statements describe constellations?
Answer:
Constellations are named patterns of stars seen in the night sky. These patterns are usually based on mythology, historical events, or simply to create a recognizable shape. They are not necessarily the brightest stars in the sky, but they are distinctive groupings. Astronomers use these constellations as a way to divide the sky into different sections to help locate and identify celestial objects.
Moreover, constellations have been used for navigational purposes for centuries. Sailors used certain constellations to determine their position at sea before the invention of advanced navigation technology. While constellations can be observed from different parts of the world, they are not exclusive to the southern hemisphere but can be seen from both hemispheres, each hemisphere having its own unique set of constellations.