TITLE: GCN CIRCULAR NUMBER: 7797 SUBJECT: GRB080603B: NOT redshift DATE: 08/06/03 23:00:16 GMT FROM: Johan U. Fynbo at U.Copenhagen Johan Fynbo (DARK/NBI), Pierre-Olivier Quirion (Univ. Aarhus), Dong Xu, Daniele Malesani, C. C. Thoene, J. Hjorth, B. Milvang-Jensen (DARK/NBI), and Pall Jakobsson (Univ. Hertfordshire) report on behalf of a larger collaboration: We observed the field of GRB 080603B (Mangano et al., GCN 7794) with the NOT telescope. We obtained R-band imaging and a low resolution spectrum using the AlFOSC instrument. Based on the detection of Lyman-alpha and a number of relatively strong metal lines we infer a redshift of 2.69. [GCN OPS NOTE(04jun08): Per author's request, a "B" was added in the Subject. And Dong Xu was added to the author list.]