Concepts: stars, constellations
A constellation is a group of stars in the sky that form a fixed pattern in relation to each other, as viewed from the Earth. Astronomers currently recognize 88 constellations in the Northern and Southern hemispheres. Our modern constellation system comes to us from the ancient Greeks. No one is sure exactly where, when or by whom this system was invented. The constellations are believed to be totally imaginary things that poets, farmers and astronomers have made up over the past 6,000 years.
The Little Dipper (Ursa Minor, The Little Bear) is a special constellation because the last star on the handle is the North Star (Polaris).
The North Star is important not because of its brightness, but because it is the only star that never appears to change its place in the sky. Even while the other stars and constellations are moving, Polaris stays put! If you are in the northern hemisphere, you can always tell which way is north if you can find the North Star.
The North Star is not visible in the southern hemisphere. Is there a star that is the equivalent of the North Star in the southern hemisphere?