The Hellenistic period was an exciting time of cultural exchange, innovation and warfare, which came about in the wake of the death of Alexander the Great.
constellation, in astronomy, any of certain groupings of stars that were imagined at least by those who named them to form conspicuous configurations of objects or creatures in the sky. Constellations are useful in assisting astronomers and navigators to locate certain stars. From the earliest times the star groups known as constellations, the smaller groups (parts of constellations) known as asterisms, and also individual stars have received names connoting some meteorological phenomena or symbolizing religious or mythological beliefs. At one time it was held that the constellation names and myths were of Greek origin; this view has now been disproved, and an
Constellation, in astronomy, any of certain groupings of stars that were imagined at least by those who named them to form conspicuous configurations of objects or creatures in the sky. Constellations are useful in assisting astronomers and navigators to locate certain stars.