GCN Circular 13490
D. Xu (WIS), N. Groeneboom, K. Mikkelsen (U. Oslo) report on behalf of a larger collaboration: We observed the field of the candidate optical afterglow (Cenko et al., GCN 13489) of GRB 120716A (Hurley et al., GCN 13487), using the 2.5m Nordic Optical Telescope (NOT) equipped with ALFOSC. Observations started 04:03 UT on 2012-07-19 (i.e., 2.455 days after the IPN trigger) and 5x300s SDSS r'-band images were obtained in a seeing of ~0.7". The optical source reported in GCN 13489 is well detected in each NOT image at coordinates RA(J2000)=20:52:12.17 Dec(J2000)=+09:35:53.9 with an uncertainty of ~0.1 arcsec radius, being consistent with the PTF position. The source had r(AB)=20.10+/-0.04, calibrated with nearby SDSS stars. The decay between the PTF and NOT epochs indicates that the source may be the optical afterglow of GRB 120716A.