Fading of AM Her 強磁場激変星の代表であるAM Herが減光を開始した模様です。AM Herは昨年7月 から high state に入っていましたが、それ以来の減光です。 YYMMDD(UT) mag observer 990410.433 133 (G. Hanson) 990410.967 134 (G. Poyner) 990411.067 129 (H. McGee) 990413.992 134 (G. Poyner) 990414.742 129 (H. Maehara) 990415.015 134 (G. Poyner) 990425.108 135 (G. Poyner) 990428.007 134 (G. Poyner) 990428.947 134 (G. Poyner) 990430.649 134 (H. Maehara) 990506.917 130 (E. Muyllaert) 990507.647 132 (T. Watanabe) 990512.010 131 (H. McGee) 990512.047 132 (G. Poyner) 990512.955 133 (E. Muyllaert) 990513.941 130 (E. Muyllaert) 990515.900 139 (M. Verdenet) 990515.949 130 (E. Muyllaert) 990516.956 133 (G. Poyner) 990518.935 130 (E. Muyllaert) 990522.933 132 (E. Muyllaert) 990524.960 132 (G. Poyner) 990525.940 133 (E. Muyllaert) 990525.996 133 (G. Poyner) 990526.935 133 (E. Muyllaert) 990526.966 133 (G. Poyner) 990527.926 132 (E. Muyllaert) 990528.928 133 (E. Muyllaert) 990601.917 133 (E. Muyllaert) 990602.949 134 (E. Muyllaert) 990603.949 134 (E. Muyllaert) 990604.981 138 (G. Poyner) 990606.353 136 (L. E. Shaw) 990606.951 138 (E. Muyllaert) 990607.994 138 (G. Poyner) 990608.974 138 (G. Poyner) 990609.135 139 (J. McKenna) 990609.372 139 (L. E. Shaw) 990609.978 139 (E. Muyllaert) 990609.978 139 (G. Poyner) 990611.349 141 (L. E. Shaw) 990612.997 142 (G. Poyner) 990613.973 142 (E. Muyllaert)