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George Willis Ritchey image of what he called the Great Nebula in Cygnus (In modern times the Veil Nebula); taken with the two-foot reflecting telescope with 3 hours exposure at the Yerkes Observatory in 1901. The nebula was discovered on 5 September 1784 by William Herschel. He described the western end of the nebula as "Extended; passes thro ...
Herschel's discoveries were supplemented by those of Caroline Herschel (11 objects) and his son John Herschel (1754 objects) and published by him as General Catalogue of Nebulae and Clusters in 1864. This catalogue was later edited by John Dreyer , supplemented with discoveries by many other 19th-century astronomers, and published in 1888 as ...
William Herschel proves it is a very small object, calculating it to be only 320 km in diameter, and not a planet. He proposes the name asteroid, and soon other similar bodies are being found. He proposes the name asteroid, and soon other similar bodies are being found.
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.
William Herschel's model of the Milky Way, 1785. 1781 – Charles Messier and his assistant Pierre Méchain publish the first catalogue of 110 nebulae and star clusters, the most prominent deep-sky objects that can easily be observed from Earth's Northern Hemisphere, in order not to be confused with ordinary Solar System's comets. [73]
The William Herschel's 40-foot (12 m) telescope 1781 – Charles Messier and his assistant Pierre Méchain publish the first catalogue of 110 nebulae and star clusters , the most prominent deep-sky objects that can easily be observed from Earth's Northern Hemisphere , in order not to be confused with ordinary Solar System's comets .
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Pages in category "Discoveries by William Herschel" The following 200 pages are in this category, out of approximately 399 total. This list may not reflect recent changes .