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| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Sirius Huang | -- | 2060 | 2022-10-08 05:42:52 |
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In contemporary astronomy, the sky is divided into 88 regions called constellations, generally based on the asterisms (which are also called "constellations") of Greek and Roman mythology. The number of 88, along with the contemporary scientific notion of "constellation", was conventioned in 1922 by the International Astronomical Union in order to establish a universal pattern for professional astronomers, who defined constellations from then on as regions of the sky separated by arcs of right ascensions and declinations and grouped by asterisms of their historically most important stars, which cover the entire celestial sphere. The constellations along the ecliptic are called the zodiac. The ancient Sumerians, and later the Greeks (as recorded by Ptolemy), established most of the northern constellations in international use today. When explorers mapped the stars of the southern skies, European and American astronomers proposed new constellations for that region, as well as ones to fill gaps between the traditional constellations. Not all of these proposals caught on, but in 1922, the International Astronomical Union (IAU) adopted the modern list of 88 constellations. After this, Eugène Joseph Delporte drew up precise boundaries for each constellation, so that every point in the sky belonged to exactly one constellation.
References
- Russell, Henry Norris (1922). "The New International Symbols for the Constellations". Popular Astronomy 30: 469. Bibcode: 1922PA.....30..469R. http://adsabs.harvard.edu/abs/1922PA.....30..469R
- "The Constellations". International Astronomical Union. http://www.iau.org/public/themes/constellations/. Retrieved 9 December 2015.
- NASA Dictionary of terms for Aerospace Use - table V, Constellations http://www.hq.nasa.gov/office/hqlibrary/aerospacedictionary/aerodictall/tables/table5.html
- OED, 2nd edition
- Random House Dictionary
- The constellations Camelopardalis, Columba, and Monoceros, formed by Petrus Plancius in 1592 and in 1613, are often erroneously attributed to Jacob Bartsch and Augustin Royer
- "Naming Stars". IAU.org. https://www.iau.org/public/themes/naming_stars/. Retrieved 30 July 2018.
- Corona Australis is sometimes called "Corona Austrina" /ɔːˈstriːnə/ (genitive: Coronae Austrinae)
- "Definition of dorado". Collins English Dictionary. http://www.collinsdictionary.com/dictionary/english/dorado. Retrieved 28 November 2012.
- Serpens may be divided into Serpens Cauda (serpent's tail) and Serpens Caput (serpent's head)
