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Detail of Bayer's chart for Orion showing the belt stars and Orion Nebula region, with both Greek and Latin letter labels visible. A Bayer designation is a stellar designation in which a specific star is identified by a Greek or Latin letter followed by the genitive form of its parent constellation's Latin name.
The original list of Bayer designations contained 1,564 naked-eye stars, and several stars not catalogued by Bayer have been added by subsequent astronomers. The Flamsteed designation also lists stars by constellation, but by number rather than letter, ordering them by increasing right ascension rather than by decreasing brightness.
In this list, a star is identified by a lower-case letter of the Greek alphabet, followed by the Latin name of its parent constellation. The Bayer designation uses the possessive form of a constellation's name, which in almost every case ends in is, i or ae; um if the constellation's name is plural (see genitive case for constellations). In ...
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 ...
Stars named with a Bayer, Flamsteed, HR, or Draper (not from the supplements) designation. Stellar extremes or otherwise noteworthy stars. Notable variable stars (prototypes, rare or otherwise important). Nearest stars (<20 ly). Stars with planets. Notable neutron stars, black holes, and other exotic stellar objects/remnants.
δ Corvi (Latinised to Delta Corvi) is the star's Bayer designation.. It bore the traditional name Algorab derived from Arabic الغراب al-ghuraab, meaning 'the crow'.In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) [10] to catalog and standardize proper names for stars.
Alpha Cassiopeiae or α Cassiopeiae, also named Schedar (/ ˈ ʃ ɛ d ɑːr /), [10] [11] is a second-magnitude star in the northern constellation of Cassiopeia.Though listed as the "alpha star" by Johann Bayer, α Cas's visual brightness closely matches the 'beta' (β) star in the constellation (Beta Cassiopeiae) and it may appear marginally brighter or dimmer, depending on which passband is ...