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"I recognized the blue world spinning in the middle of the most beautiful star constellation in a thousand galaxies. Alderaan."
―Princess Leia Organa[src]

A constellation was an arrangement of stars as viewed from a planet, also containing other celestial objects visible within the area. These objects rarely had any astrophysical relationship to each other, however; they merely appeared close together when viewed from the observer's planet.

Constellations were mapped by astronomers.