We performed some follow-up measurements of this object while it was still listed in the NEOCP. Stacking of 20 R-filtered exposures, 30-sec each, obtained remotely, from the Faulkes Telescope South on 2011, July 7.7, through a 2.0-m f/10.0 Ritchey-Chretien + CCD, shows that this object is a comet: elliptical coma measuring about 7" x 4", elongated toward west, with a sharp central condensation. Tail nearly 10" long toward PA 270
M.P.E.C. 2011-N29 assignes the following preliminary orbital elements to comet P/2011 N1: T 2012 May 30.02; e= 0.54; Peri. =330.23; q = 2.87 AU; Incl.=35.69
by Giovanni Sostero, Nick Howes and Ernesto Guido