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Home: Astronomy: Amateur: Deep Sky Observing
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- List of Common Deep Sky Catalogs
http://www.seds.org/messier/xtra/supp/cats.html
General, supernova remnants, planetary nebulae, diffuse nebulae, dark nebulae, open clusters, globular clusters, galaxies, clusters of galaxies, double stars, and references.
- The NGC/IC Project
http://www.ngcic.org/
An attempt to correctly identify all the original objects, starting with the original discoverer's notes and working forward in time to encompass the work of contemporary astronomers, both professional and amateur.
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