noun (n)

• an arrangement of parts or elements(noun.cognition)

  Synonym:
  configuration
  

  source: wordnet30
• a configuration of stars as seen from the earth(noun.object)

  source: wordnet30
• A cluster or group of fixed stars, or division of the heavens, designated in most cases by the name of some animal, or of some mythologial personage, within whose imaginary outline, as traced upon the heavens, the group is included.(noun)

  source: webster1913