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In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
Of the fifty-seven stars included in the new almanac, these two had no traditional names. The RAF insisted that all of the stars must have names, so new names were invented for them. [8] These names have been approved by the IAU WGSN. [2] The book Star Names: Their Lore and Meaning by R. H. Allen (1899) [9] has had effects on star names:
Older catalogues either assigned an arbitrary number to each object, or used a simple systematic naming scheme based on the constellation the star lies in, like the older Ptolemy's Almagest in Greek from 150 and Al-Sufi's Book of Fixed Stars in Arabic from 964. The variety of sky catalogues now in use means that most bright stars currently have ...
First published in 1899 as Star-Names and Their Meanings, [2] this work collected the origins of the names of stars and constellations from a panoply of sources, some primary but most secondary; also telling briefly the various myths and folklore connected with stars in the Greco-Roman tradition; as well as in the Arabic, Babylonian, Indian and Chinese traditions, for which, however, some ...
These former constellations are often found in older books, star charts, or star catalogues. The 88 modern constellation names and boundaries were standardised by Eugene Delporte for the IAU in 1930, under an international agreement, removing any possible astronomical ambiguities between astronomers from different countries. [ 3 ]
In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) [20] to catalogue and standardize proper names for stars. The WGSN approved the name Zubenelgenubi for α 2 Librae on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names. [15] In Chinese, 氐宿 (Dī Xiù), meaning Root, refers to ...
Castor and Pollux are the two "heavenly twin" stars giving the constellation Gemini (Latin, 'the twins') its name. The stars, however, are quite different in detail. Castor is a complex sextuple system of hot, bluish-white type A stars and dim red dwarfs, while Pollux is a single, cooler yellow-orange giant.
The smaller star is of spectral type F2V with a surface temperature of around 6750 K, and has around 1.4 M ☉, 1.56 R ☉, and between 4 and 5 L ☉. [20] Near Nusakan is Theta Coronae Borealis , a binary system that shines with a combined magnitude of 4.13 located 380±20 light-years distant. [ 16 ]