--- name: SS Cygni constellation: Cyg created_by: editor.cs created_date: 2023-11-05 17:51:57.269168 updated_by: editor.cs updated_date: 2023-11-05 17:51:57.269173 --- One of the many variable stars is a cataclysmic variable star, which flares up to a brightness of 8mag every 2 months, but normally it is a 12mag star. It is the prototype of dwarf stars known either as SS Cygni-type variable stars or U Geminorum-type variable stars.