TITLE: GCN CIRCULAR NUMBER: 7229 SUBJECT: GRB 080129: Gemini-South Imaging Observations DATE: 08/01/29 08:23:04 GMT FROM: Josh Bloom at UC Berkeley J. S. Bloom (UC Berkeley) reports on behalf of the larger GRAASP collaboration: "Automatically triggering off of the original GCN/SWIFT_BAT_POSITION notice for GRB 080129 (GCN 7226), we observed the field with Gemini South + GMOS in the r-band starting at 06:50:21.4 2008-01-29 in a series of 5 dithered exposures of 5 minutes apiece. Consistent with the position of the X-ray source (GCN 7228) we find a point-like object at: 07:01:08.20 -07:50:46.3 (J2000) (preliminary uncertainty of 300 mas rms relative to 2MASS). We suggest that this is the optical afterglow of GRB 080129 but cannot confirm variability at this time. More observations are encouraged." We thank the Gemini Staff for conducting these observations. This message may be cited.