V503 Cyg outburst Frequent outburst. The star has apparently changed its outburst pattern in recent years. More observations are strongly encouraged. YYYYMMDD(UT) mag observer 20001006.215 <152 (G. Hanson) 20001006.833 <142 (E. Muyllaert) 20001007.185 <152 (G. Hanson) 20001008.828 145: (E. Muyllaert) 20001008.933 148 (G. Poyner)