TITLE: GCN CIRCULAR NUMBER: 11540 SUBJECT: GRB 110106B: Gemini-North / WHT detection of a fading afterglow DATE: 11/01/07 15:01:07 GMT FROM: Edo Berger at Harvard E. Berger (Harvard), A.J. Levan (U. Warwick), R. Chornock (Harvard), and N.R. Tanvir (U. Leicester) report: "In addition to the spectroscopic observations reported in GCN #11538 we also obtained i-band imaging of the afterglow candidate of GRB 110106B found with the WHT (GCN #11534) with Gemini-N / GMOS. A total of 900 sec were obtained on source at a mean epoch of 2011 Jan 7.347 UT (10.89 hours after the burst and 7.64 hours after the WHT observation). Digital image subtraction of the Gemini and WHT observations reveals a fading source located at (J2000): RA = 08:56:37.267 DEC = +47:00:10.49 with an uncertainty of about 0.2" in each coordinate. This position is about 1.5" due east of the galaxy noted in GCN #11534, whose redshift is 0.618 (GCN #11538). At this redshift the corresponding projected offset is about 10 kpc. We note that emission is still detected at the position of the afterglow, indicating that an association with an underlying host unrelated to the nearby galaxy may still be possible."