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2. Catalogue of Nebulae and Clusters of Stars - Wikipedia

   en.wikipedia.org/wiki/Catalogue_of_Nebulae_and...

   This catalogue originated the usage of letters and catalogue numbers as identifiers. The capital "H" followed with the catalogue entry number represented the item. [4] In 1864, the CN was expanded into the General Catalogue of Nebulae and Clusters of Stars (GC) by John Herschel (William's son). [5] The GC contained 5,079 entries.

3. List of astronomical catalogues - Wikipedia

   en.wikipedia.org/.../List_of_astronomical_catalogues

   Download as PDF; Printable version; ... (A catalogue of nebulae and clusters of stars in the ... h — James South / John Herschel (joint 1824 catalogue of double ...

4. Herschel Catalogue - Wikipedia

   en.wikipedia.org/wiki/Herschel_Catalogue

   Catalogue of Nebulae and Clusters of Stars catalogued by William and Caroline Herschel; Catalogues published by John Herschel. General Catalogue of Nebulae and Clusters of Stars, catalogued by John Herschel; J.L.E. Dreyer's New General Catalogue and Index Catalogues, which expanded on the William, Caroline, John Herschel catalogues; Herschel ...

5. Category:Astronomical catalogues - Wikipedia

   en.wikipedia.org/wiki/Category:Astronomical...

   Download as PDF; Printable version; In other projects ... Catalogue of Nebulae and Clusters of Stars; ... Herschel 400 Catalogue;

6. Herschel 400 Catalogue - Wikipedia

   en.wikipedia.org/wiki/Herschel_400_Catalogue

   The Herschel 400 is a subset of John Herschel's General Catalogue of Nebulae and Clusters published in 1864 of 5,000 objects, and hence also of the New General Catalogue. The catalogue forms the basis of the Astronomical League's Herschel 400 club. In 1997, another subset of 400 Herschel objects was selected by the Rose City Astronomers of ...

7. Nebulae and Star Clusters - Wikipedia

   en.wikipedia.org/wiki/Nebulae_and_Star_Clusters

   Nebulae become visible if the gas glows, or if the cloud reflects starlight or obscures light from more distant objects. The catalogues that it may refer to: Catalogue des nébuleuses et des amas d'étoiles (Messier "M" catalogue) first published 1771; Catalogue of Nebulae and Clusters of Stars (William Herschel 'CN'/"H" catalogue) first ...

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9. New General Catalogue - Wikipedia

   en.wikipedia.org/wiki/New_General_Catalogue

   The New General Catalogue of Nebulae and Clusters of Stars (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies , star clusters and emission nebulae .