GCN Circular 9559
E. Berger (Harvard), A. Cucchiara, D.B. Fox (Penn State), and A.J. Levan (U. Warwick) report: "On 2009 June 22.41 UT we used the GMOS instrument mounted on the Gemini-North 8-m telescope to obtain spectroscopic observations of the candidate optical afterglow (GCN #9547) of the short GRB 090621B (GCN #9545). A pair of 1800 sec exposures were obtained with a wavelength coverage of 4500-7500A. The combined spectrum of the source reveals broad features typical of an early M dwarf star. We therefore conclude that this object is unrelated to the GRB."