GCN Circular 7152
P. D'Avanzo (INAF-OA), F. Fiore (INAF-OAR), S. Piranomonte (INAF-OAR), S. Covino, G. Tagliaferri (INAF-OAB), G. Chincarini (Univ. Bicocca) and L. Stella (INAF-OAR) report, on behalf of the MISTICI collaboration: We observed the field of GRB 071227 (Sakamoto et al., GCN 7147; Sato et al. GCN 7148) with the ESO-VLT equipped with the FORS2 camera. A spectrum (grism 300V) of the galaxy inside the XRT error box (Cucchiara & Sakamoto GCN 7150; Berger et al. GCN 7151) taken on Dec 28.1885 (about 8.3 hours after the burst) displays an emission line at 5154.77 A. Interpreting this feature as [O II] 3728 we infer a tentative redshift of z = 0.383 (based on a preliminary wavelength calibration). We thank the Paranal staff for excellent support, especially Elena Valenti.