TITLE: GCN CIRCULAR NUMBER: 10277 SUBJECT: GRB 091208A: GAO 150cm telescope Optical Observation DATE: 09/12/11 11:19:27 GMT FROM: Kenzo Kinugasa at Gunma Astro. Obs/Japan K. Kinugasa, S. Honda, H. Takahashi, H. Taguchi, O. Hashimoto (Gunma Astronomical Observatory) report: The field of GRB 091208A (Hoversten et al. GCN 10253) was observed with the 150 cm telescope of Gunma Astronomical Observatory. Starting at 09:09:06 UT on Dec.8 ( 23.1 min after the trigger), both Rc and Ic frames were acquired for sets of 5 x 0.5-min and 3 x 2-min exposures. The limiting magnitude in combined image is estimated as Rc~20.5 and Ic~20.0. We did not detect any new point source within the BAT error circle down to the magnitudes of R~20.2 and I~19.5 relative to USNO-B1.0 R2 and I magnitudes, respectively.