TITLE: GCN CIRCULAR NUMBER: 28270 SUBJECT: GRB 200729A: Lowell Discovery Telescope observations DATE: 20/08/20 02:43:52 GMT FROM: Simone Dichiara at UMCP/NASA/GSFC S.Dichiara (UMD, NASA-GSFC), P. Gatkine (UMD), J. Durbak (UMD), S.B. Cenko (NASA-GSFC), E. Troja (UMD, NASA-GSFC), A. Kutyrev (UMD, NASA-GSFC), S. Veilleux (UMD), report on behalf of a larger collaboration: We observed the field of GRB 200729A (Evans et al., GCN Circ. 28165) using the Large Monolithic Imager (LMI) on the 4.3m Lowell Discovery Telescope (LDT) at Happy Jack, AZ. Observations started on August 17, 03:52:06 UT (18.34 days after the Swift trigger) taking 6 exposures of 150 s each with SDSS i filter. Observations were taken at an airmass of about 2.4 and seeing of 1.9". We do not find any source inside the enhanced XRT position (Osborne et al., GCN Circ. 28168) down to a 3-sigma limiting magnitude of i>21.8 AB mag. Magnitudes are calibrated against the SDSS catalog and not corrected for Galactic extinction. The time of our observation corresponds to the typical peak time for an associated supernova. Therefore, our upper limit on the supernova component strengthens the hypothesis of a chance alignment of the GRB with the foreground galaxy NGC 4242, which is at a distance of ~ 7.5 Mpc (Anand et al., GCN Circ. 28175). In particular we note that our limit is about 11.6 magnitudes deeper than the one expected from a SN1998bw-like supernova at the same distance (without correcting for the large but uncertain extinction; Tohuvavohu et al., GCN Circ. 28176). We thank the staff of the Lowell Discovery Telescope for assistance with these observations.