AC Her primary minimum YYYYMMDD(UT) mag observer 20001025.501 78 (Y. Watanabe) 20001027.800 78 (L. Kiss) 20001029.758 72 (H. Goldhahn) 20001102.833 75 (M. Reszelski) 20001105.406 77 (N. Makiguchi) 20001105.466 76 (Y. Watanabe) 20001109.800 77 (L. Kiss) 20001118.417 85 (K. Hirosawa)