Back تسمية النجوم المتغيرة Arabic Denomación d'estrelles variables AST Dəyişən ulduzların tərifləri Azerbaijani Designació d'estrella variable Catalan Benennung veränderlicher Sterne German Denominación de estrellas variables Spanish تعیین نام ستارههای متغیر Persian Désignation des étoiles variables French परिवर्ती तारा पदनाम Hindi Nomenclatura delle stelle variabili Italian
In astronomy, a variable-star designation is a unique identifier given to variable stars. It extends on the Bayer designation format, with an identifying label (as described below) preceding the Latin genitive of the name of the constellation in which the star lies. The identifying label can be one or two Latin letters or a V plus a number (e.g. V399). Examples are R Coronae Borealis, YZ Ceti, V603 Aquilae. (See List of constellations for a list of constellations and the genitive forms of their names.)