GCN Circular 15473
Klotz A., Turpin D. (IRAP-CNRS-OMP), Pelassa V. (UAH), Gendre B., Boer M., Siellez K., Dereli H., Bardho O. (UNS-CNRS-OCA), Atteia J.L. (IRAP-CNRS-OMP) report: We imaged the field of GRB 131108A detected by Fermi-LAT and Fermi-GBM (Racusin et al., GCN 15646) with the TAROT robotic telescope (D=25cm) located at the Calern Observatory, France. The observations started about 22700s after the GRB trigger (3:00 UT on 2013-11-09), when the object started to be visible. The weather conditions were poor, with only one sequence of 6 images being not cloudy. We detect the afterglow reported by Stroh et al. (GCN 15468) and Gorosabel et al. (GCN 15469), with a magnitude of R = 17.8 +/- 0.2. Magnitudes were estimated with the nearby NOMAD1 stars and are not corrected for galactic dust extinction. This message may be cited.