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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. Herschel Catalogue - Wikipedia

   en.wikipedia.org/wiki/Herschel_Catalogue

   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 400 Catalogue, a subset of the Herschels' catalogues for amateur astronomers

4. Herschel 400 Catalogue - Wikipedia

   en.wikipedia.org/wiki/Herschel_400_Catalogue

   In this letter Mr. Mullaney suggested that William Herschel's original catalogue of 2,500 objects would be an excellent basis for deep sky object selection for amateur astronomers looking for a challenge after completing the Messier Catalogue. The Herschel 400 is a subset of John Herschel's General Catalogue of Nebulae and Clusters published in ...

5. Wikipedia : WikiProject Astronomical objects/Catalogues

   en.wikipedia.org/.../Catalogues

   Wikipedia:WikiProject Astronomical objects/Catalogues/Abell Catalog of Planetary Nebulae; Wikipedia:WikiProject Astronomical objects/Catalogues/Atlas of Peculiar Galaxies; Wikipedia:WikiProject Astronomical objects/Catalogues/Bright Star Catalogue; Wikipedia:WikiProject Astronomical objects/Catalogues/Collinder catalog

6. General catalogue - Wikipedia

   en.wikipedia.org/wiki/General_Catalogue

   Boss General Catalogue, an astronomical catalogue compiled by Benjamin Boss and published in the U.S. in 1936; General Catalogue of Nebulae and Clusters, an astronomical catalogue by John Herschel expanding on the work of his father William Herschel

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 ...