Named in memory of Marco Falorni (1944–1995), Italian amateur astronomer, president of Unione Astrofili Italiani, the leading Italian association of amateur astronomers. A great visual observer of planets, principally Mars, he used in this work the refractor Amici at the Arcetri Astrophysical Observatory in Florence and the 0.83-m refractor at Meudon. Falorni also collaborated with the group of amateurs at the Osservatorio San Vittore {see planet  (2235)} in Bologna, examining and measuring hundreds of photographs of planetary surfaces taken around 1970 by C. Vacchi, G. Sassi and G. Sette. (M 27331) _ _.