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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.
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 ...
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 ...
S, h — James South / John Herschel (joint 1824 catalogue of double stars) Shk — Romela Karapet Shakhbazian (compact groups of galaxies) (for example: Shakhbazian 1 (the 'Russian Cluster') at 10:54.8 / +40°28' in Ursa Major) Shorlin — (for example: open star cluster Shorlin 1 at 11:05:46 / -61°13'48" in Carina)
John Herschel: Pegasus 00 h 11 m: 21° 57′ 14.8/15 [3] NGC 32: Asterism: John Herschel: Pegasus 00 h 11 m: 18° 47′ 14 [4] NGC 33: Double star John Herschel: Pisces: 00 h 11 m: 03° 40′ 15 [5] NGC 44: Double Star John Herschel: Andromeda 00 h 13 m: 31° 18′ 14.6 [6] NGC 46: Star Edward Cooper: Pisces 00 h 21.9 m: 22° 25′ 11.8 [7] NGC ...
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The galaxy was discovered by astronomer John Herschel on November 29, 1837, [6] and is a member of the Fornax Cluster. [7] NGC 1373 is a host to a supermassive black hole with an estimated mass of 4.6 million solar masses. [8] 63 known globular clusters have been observed surrounding NGC 1373, [9] along with 13 observed planetary nebulae. [10]