SS Aur double outburst The SS Cyg-type dwarf nova SS Aur is undergoing a rare "double outburst". This phenomenon is probably related to the anomalous rise (likely triggered by inside-out disk instability). YYMMDD(UT) mag observer 981026.147 149 (G. Comello) 981026.910 <145 (T. Kinnunen) 981028.455 148 (G. Hanson) 981029.424 144 (G. Hanson) 981101.628 <130 (T. Watanabe) 981101.992 145 (G. Poyner) 981105.338 <139 (L. E. Shaw) 981106.999 127 (G. Poyner) 981107.588 126 (T. Watanabe) 981107.751 127 (H. Maehara) 981108.040 124 (B. H. Granslo) 981108.180 120 (T. Kinnunen) 981108.822 118 (E. Muyllaert) 981109.637 115 (T. Watanabe) 981109.805 121 (T. Kinnunen) 981109.903 120 (G. Comello) 981110.607 115 (T. Watanabe) 981110.849 117 (E. Muyllaert) 981110.875 120 (G. Comello) 981110.922 125 (G. Poyner) 981111.151 120 (G. Hanson) 981111.331 121 (R. J. Modic) 981111.623 116 (H. Maehara) 981111.717 123 (T. Watanabe) 981111.753 119 (T. Kinnunen) 981111.863 123 (G. Comello) 981112.185 124 (R. J. Modic) 981112.360 125 (L. E. Shaw) 981112.582 120 (H. Maehara) 981113.335 124 (L. E. Shaw) 981113.417 130 (G. Hanson) 981113.723 124 (T. Watanabe) 981114.433 120 (G. Hanson) 981114.892 116 (T. Kinnunen) 981114.941 115 (E. Muyllaert) 981114.988 120 (G. Poyner) 981115.448 121 (G. Hanson) 981115.499 113 (T. Watanabe) 981115.635 114 (T. Watanabe) 981115.635 115 (H. Maehara)