TITLE: GCN CIRCULAR NUMBER: 9719 SUBJECT: GRB 090727: Liverpool Telescope possible OT candidate DATE: 09/07/28 02:19:38 GMT FROM: James Smith at ARI,Liverpool John Moors U R.J. Smith, C.G. Mundell (Liverpool JMU) on behalf of a large collaboration report: The 2-m Liverpool Telescope robotically reacted to GRB 090727 (SWIFT trigger 358520, Evans et al, GCN Circ. 9718), starting observing at 22:44:59UTC. A source which is not visible in the digitized sky survey is detected in both SDSS r' and i' filters at position 21:03:50.6 +64:55:30 J2000. This lies within the XRT error circle reported by Evans et al, GCN Circ. 9718. The approximate magnitude, calibrated with respect to nearby USNOB stars is R=21.3 +/- 0.2 and I = 20.2 +/- 0.2. The target is slightly crowded by brighter stellar sources and analysis is ongoing to determine if the OT candidate is fading.