TITLE: GCN CIRCULAR NUMBER: 8558 SUBJECT: GRB 081126: optical observations DATE: 08/11/27 02:54:03 GMT FROM: Alexei Pozanenko at IKI, Moscow Andreev M., Sergeev A., (Terskol Branch of Institute of Astronomy), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration report: We observed the field of GRB 081126 detected by SWIFT (trigger 335647, Margutti et al GCN8554 ) with the Z-600 telescope of Mt. Terskol observatory. A set of 90 s unfiltered exposures was taken starting (UT) Nov. 26 22:07:20. In a combined image of 3x90 s we detect a new object not presented in DSS2(R), in near vicinity to the object of USNO-A2.0 1350-14391154. A preliminary astrometry of the new object based on USNO-A2.0 is RA, Dec (J2000) = 21 34 03.56 +48 42 38.62 with uncertainty of 1", which is formally outside of enhanced XRT position (Osborne et al GCN 8556). It is not clear at this moment relation of the new object with GRB 081126. A combined image can be found at http://grb.rssi.ru/GRB081126/GRB081126_z600.jpg