Names and Boundaries of Constellations
The sky was arbitrarily divided into constellations by historic astronomers, according to perceived patterns in the sky. At first, only the shapes of the patterns were defined, and the names and numbers of constellations varied from one star map to another. Despite being scientifically meaningless, they do provide useful reference points in the sky for human beings, including astronomers. In 1930, the boundaries of these constellations were fixed by Eugène Joseph Delporte and adopted by the IAU, so that now every point on the celestial sphere belongs to a particular constellation.
Read more about this topic: Astronomical Naming Conventions
Famous quotes containing the words names and/or boundaries:
“It was a poetic recreation to watch those distant sails steering for half-fabulous ports, whose very names are a mysterious music to our ears.... It is remarkable that men do not sail the sea with more expectation. Nothing was ever accomplished in a prosaic mood.”
—Henry David Thoreau (1817–1862)
“Ideas are not thoughts; the thought respects the boundaries that the idea ignores thereby failing to realize itself.”
—Franz Grillparzer (1791–1872)