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Messier Objects: Galaxies, Nebulae and Clusters in the Messier Catalogue | Hacker News Reader

Messier Objects: Galaxies, Nebulae and Clusters in the Messier Catalogue

messier-objects.com

1 point·NKosmatos··1 comment

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Additional links: https://en.wikipedia.org/wiki/Messier_object

https://en.wikipedia.org/wiki/Caldwell_catalogue

https://en.wikipedia.org/wiki/New_General_Catalogue

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