Variable-star designation

In <a href="/facts/Astronomy/0ArJVM1p">astronomy</a>, a variable-star designation is a unique identifier given to <a href="/facts/Variable_star/Ac8mp2gy">variable stars</a>. It extends the <a href="/facts/Bayer_designation/KU2DVT47">Bayer designation</a> format, with an identifying label (as described below) preceding the <a href="/facts/Latin_language/pM3Kge85">Latin</a> <a href="/facts/Genitive_case/nMXh3StK">genitive</a> of the name of the <a href="/facts/Constellation/nBQqgW8A">constellation</a> in which the star lies. The identifying label can be one or two <a href="/facts/Latin_script/7EWeJjUV">Latin</a> letters or a V plus a number (e.g. V399). Examples are <a href="/facts/R_Coronae_Borealis/l3VSa7f3">R Coronae Borealis</a>, <a href="/facts/YZ_Ceti/wg65sC43">YZ Ceti</a>, <a href="/facts/V603_Aquilae/LDGdDoRX">V603 Aquilae</a>. (See <a href="/facts/List_of_constellations/g3unjXNu">List of constellations</a> for a list of constellations and the genitive forms of their names.)

Variable-star designation open-in-new

Variable-star designation