GCN Circular 9884
D. Malesani (DARK/NBI), P. Jakobsson (U. Iceland), N. Tanvir (U. Leicester) and I. Ilyin (AIP) report on behalf of a larger collaboration: We observed the field of GRB 090904A (Perri et al., GCN 9879) with the Nordic Optical Telescope equipped with StanCam. Observations were carried out on 2009 Sept 4.17 (3.1 hr after the GRB) in the R- and I-bands. No objects are detected inside the XRT error circle to a limit of R > 23. However, just outside the error circle at RA(J2000) = 06:43:32.33 Dec(J2000) = +50:12:12.4 there is an object with R = 22 +/- 0.2 mag (calibrated against several nearby USNO-B1 stars). If weather permits, further observations are planned tonight to estimate whether the object is fading.