Constellation
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Constellations
A Constellation is a group of stars. Together, the stars look like a picture. Some examples of constellations are the Big Dipper (Ursa Major), Orion, and Andromeda.
People began to make constellations to help to remember which and how stars were located. The way to make constellations is different in areas, but today astronomy has a fixed set of 88 constellations. This set is based on Greek set and later some southern constellations were added, for example Antlia - the air pump. Most constellations have names that come from Greek mythology, like Orion or Andromeda.
Twelve constellations make the Zodiac where the Sun seems to rotate in a year. There is also a thirteenth constellation Ophiuchus - the carrier of a serpent, which the Sun goes through. However, most people do not think that it is in the Zodiac.
