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The international astronomical Union (UAI) is the authority internationally recognized on the stellar designations . Several stellar names used today are inherited before the existence the UAI, but one adds the new ones continuously.
Several remarkable stars have names, of which the majority are of origin Arab, such Deneb (α Cygni) and Vega (α Lyrae); there are of them others in Latin such Polaris (α Ursae Minoris), and very small little in French the such Ear (α Virginis).
However, several stars do not have a name. For those, one uses several systems of nomenclature.
Designations of Bayer
See also: Designation of Bayer
The most familiar system is that of the German astronomer Johann Bayer, which introduced a system to indicate the most brilliant stars of each Constellation with a letter of the Greek alphabet (or less often, Latin alphabet).
Flamsteed numbers
See also: Designation of Flamsteed
The numbers of the British astronomer John Flamsteed as remained popular, although less used as the Bayer letters.
Variable star designations
See also: Designation of variable stars
If a variable star does not have designation of Bayer, it often receives a special designation which notes it like such.
Numbers of catalog
See also: astronomical Catalog, Catalog of stars
In the absence of a better way of naming a star, one generally uses a number of catalog. There are several star catalogs which are used for this end.
Designation of pulsars
See also: Designation of the pulsars
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