TITLE: GCN CIRCULAR NUMBER: 7663 SUBJECT: GRB 080430: Optical observations DATE: 08/05/02 08:33:59 GMT FROM: Shashi Bhushan Pandey at ARIES, INDIA S. B. Pandey, Rupak Roy and Brijesh Kumar (ARIES, NainiTal, India, on behal= f of larger Indian GRB collaboration) We observed Swift GRB 080430 with 1.04m telescope NainiTal starting ~20.0 h= ours after the burst (Guidorzi et al. GCN 7647). Observations were performe= d in R_c and I_c filters. Photometry of one of the R_c frame (exposure time 1800s) shows theafterglow= around ~ 20.5 mag as reported in GCN 7646 and GCN 7648. The reported magni= tude is determined in comparison to nearby USNO stars. This message may be cited.