TITLE: GCN CIRCULAR NUMBER: 11076 SUBJECT: GRB 100805A: 2-nd epoch of SAO RAS optical observations DATE: 10/08/08 15:40:35 GMT FROM: Vladimir Sokolov at SAO RAS A. S. Moskvitin, T. A. Fatkhullin, V. V. Sokolov, T. N. Sokolova & V. N. Komarova (SAO RAS, Niznijh Arkhyz, Russia), report: We observed the field of the GRB100805A (Hoversten E. A. et al., GCN 11047) once again with the Zeiss-1000 telescope of SAO RAS, Russia. The observations were carried out in the Rc band on Aug. 7.832 - 7.918 UT. At the position of the OT we detected a faint object with R = 23.3 +/- 0.2. We assume the magnitude of the reference USNO-B1.0 star (L. P. Xin et al., GCN 11065; A. S. Moskvitin et al., GCN 11071) as R = 17.41. Error are formal and do not include one of USNO-B1.0 to Johnson-Cousins photometric system transformation. This message may be cited.