TITLE: GCN CIRCULAR NUMBER: 18289 SUBJECT: GRB 150910A: AAO optical observations DATE: 15/09/12 03:14:23 GMT FROM: Alexei Pozanenko at IKI, Moscow E. Mazaeva (IKI), R. Inasaridze (AAO), V. Zhuzhunadze (AAO), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 150910A (Pagani et al., GCN 18264) with with AS-32 (0.7m) telescope of Abastumani Observatory starting on Sep. 10 (UT) 18:53:54. We obtained several unfiltered images. The afterglow (Pagani et al., GCN 18264; Zheng & Filippenko, GCN 18265) is clearly visible in a combined image. The photometry of the combined image is following Date UT start t-T0 Filter Exp. OT Err (mid, days) (s) 2015-09-10 18:53:54 0.45834 none 50*120 20.16 +/- 0.06 The photometry is based on SDSS stars used in GCN 18281 (Mazaeva et al.)