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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:
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 ]
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 ...
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 ...
The Aboriginal "Emu in the sky".In Western astronomy terms, the Southern Cross is on the right, and Scorpius on the left; the head of the emu is the Coalsack.. A constellation used almost everywhere in Australian Aboriginal culture is the "Emu in the Sky", which consists of dark nebulae (opaque clouds of dust and gas in outer space) that are visible against the (centre and other sectors of the ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Area of the sky divided into twelve signs For the East Asian zodiac, see Chinese zodiac. For other uses, see Zodiac (disambiguation). The Earth's orbit around the Sun causes the apparent motion of the latter along the ecliptic (red). Earth is axially tilted 23.4° relative to this plane ...
Centaurus has 281 stars above magnitude 6.5, meaning that they are visible to the unaided eye, the most of any constellation. Alpha Centauri, the closest star system to the Sun, has a high proper motion; it will be a mere half-degree from Beta Centauri in approximately 4000 years. [2]