GCN Circular 11519
D. Xu (Weizmann Inst.), D. Malesani, J.P.U. Fynbo, J. Hjorth (DARK/NBI), P. Jakobsson (U. Iceland), T. Augusteijn (NOT), report on behalf of a larger collaboration: We imaged the field of GRB 101225A (Racusin et al., GCN 11493) at the Nordic Optical Telescope (NOT) equipped with ALFOSC. We obtained 6x600 s R-band images with a good seeing ~0.7" and little cloud cover. Observations started at 20:55:25 UT on 2011 Jan 4 (i.e., 10.1 days after the BAT trigger). The optical counterpart of the burst (Xu et al., GCN 11495) has faded further and it is detected in the stacked image with R = 24.1+/-0.1, calibrated against the USNO-B1 star #1345-0000324. The object is now significantly extended along the northwest-southeast direction, indicating a significant contribution from the underlying host galaxy. Further observations are encouraged, especially in the NIR.