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This chronological list of famous watchmakers is a list of those who influenced the development of horology or gained status by their creations. The list is sorted by the lifetimes of the watchmakers .
The list was compiled by Patrick Moore as a complement to the Messier catalogue. [ 1 ] While the Messier catalogue is used by amateur astronomers as a list of deep-sky objects for observation, Moore noted that Messier's list was not compiled for that purpose and excluded many of the sky's brightest deep-sky objects, [ 1 ] such as the Hyades ...
The following is a list of NGC objects, that is objects listed in the New General Catalogue (NGC). It is one of the largest comprehensive astronomical catalogues for deep sky objects such as star clusters, nebulae, and galaxies. List of NGC objects (1–1000) List of NGC objects (1001–2000) List of NGC objects (2001–3000)
An astronomical catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery. Astronomical catalogs are usually the result of an astronomical survey of some kind.
This is a list of NGC objects 1–1000 from the New General Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters , nebulae , and galaxies . Other objects in the catalogue can be found in the other subpages of the list of NGC objects .
It was the major achievement in astronomy since the days of Ptolemy. Brahe's astrometric observations greatly improved on the positional accuracy achieved by his predecessors. [6] [7] Johann Bayer's Uranometria star atlas was published in 1603, with over 1200 stars. Names combine a Greek letter with a constellation name: for example, Alpha ...
In 1919, the American astronomer Edward Emerson Barnard compiled a list of dark nebulae known as the Barnard Catalogue of Dark Markings in the Sky, or the Barnard Catalogue for short. The nebulae listed by Barnard have become known as Barnard objects . [ 2 ]
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