The document discusses several constellations visible from Earth: - The Ursa Major, or Great Bear, consists of seven stars and is visible year-round in the northern hemisphere. It has cultural significance around the world. - Ursa Minor, or Little Dipper, also has seven stars and includes Polaris, the pole star. It is dimmer and harder to spot than Ursa Major. - Orion is one of the most prominent constellations, depicting a hunter holding a shield and sword. It can be used to locate the bright star Sirius. - Scorpius is located in the southern hemisphere and shaped like a scorpion, consisting of seven stars visible in summer.