Rapid fading of SU Tau The R CrB-type variable SU Tau is rapidly fading. Follow-up observations are encouraged. YYMMDD(UT) mag observer 971227.301 135 (G. Hanson) 971227.540 130 (N. Makiguchi) 971227.589 131 (S. Takahashi) 971227.626 134 (S. Sakuma) 971227.976 132 (G. Poyner) 971228.321 136 (G. Hanson) 971228.760 134 (M. Verdenet) 971229.060 131 (G. Poyner) 971229.265 137 (G. Hanson) 971229.448 <128 (M. Nakatani) 971229.830 <128 (B. H. Granslo) 971230.730 135: (R. Fidrich) 971231.991 136 (G. Poyner) 980102.083 137 (G. Poyner) 980102.238 139 (G. Hanson) 980102.335 137 (R. J. Modic) 980102.810 139 (R. Fidrich) 980103.244 140 (G. Hanson) 980103.685 139 (T. Watanabe) 980103.860 <133 (B. H. Granslo) 980104.130 141 (G. Comello) 980104.556 139 (N. Makiguchi) 980104.660 140 (L. Szentasko) 980105.608 <122 (H. Someya) 980105.700 139 (L. Szentasko) 980106.021 143 (G. Poyner) 980106.457 144 (G. Hanson) 980106.857 146: (G. Poyner) 980107.426 148 (G. Hanson)