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Mattia Verga edited this page Apr 9, 2018
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OpenNGC is a database containing positions and main data of NGC (New General Catalogue) and IC (Index Catalogue) astronomical objects.
Unlike other similar databases which are released with license limitations, OpenNGC is released under CC-BY-SA-4.0 license.
Amateur astronomers can found data for some notable objects which are not part of NGC or IC catalogs in the Addendum directory.