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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.
NGC 1166 was discovered by the renowned astronomer John Herschel during his survey of the southern skies in 1834. Herschel's extensive cataloging of nebulae and galaxies led to the inclusion of NGC 1166 in the New General Catalogue (NGC), where it is listed among other deep-sky objects. [citation needed]
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 ...
The original New General Catalogue was compiled during the 1880s by John Louis Emil Dreyer using observations from William Herschel and his son John, among others.Dreyer had already published a supplement to Herschel's General Catalogue of Nebulae and Clusters (GC), [2] containing about 1,000 new objects.
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 ...
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 ...
LBN — Lynds' Catalogue of Bright Nebulae; Lbz — P. Labitzke (double stars) LDN — Lynds' Catalogue of Dark Nebulae; LDS — Luyten Double Star catalogue; LEDA — Lyon-Meudon Extragalactic Database; Lederman — (telescopic asterisms) Le Gentil — (for example: Le Gentil 3 in Cygnus, at 21:08 / +51°40') (dark nebula)
NGC 6453 was discovered by John Herschel on June 8, 1837, [7] [1] [6] while he was observing from the Cape of Good Hope in South Africa. [8] He included the cluster as "h 3708" in his 1864 Catalogue of Nebulae and Clusters of Stars, and Danish-Irish astronomer John Dreyer later added the cluster to his New General Catalogue as object number 6453. [6]