Schiaparelli bụ onye na-enyocha ihe ndị dị na mbara igwe, na-arụ ọrụ na kpakpando abụọ, na-achọpụta nnukwu isi-belt asteroid 69 Hesperia na 29 Eprel 1861, ma gosipụta na meteor showers jikọtara ya na comets. O gosipụtara, dịka ọmụmaatụ, na orbit nke Leonid meteor shower kwekọrọ na nke comet Tempel-Tuttle. Ihe ndị a mere ka onye na-enyocha mbara igwe chepụta echiche ahụ, nke mechara bụrụ eziokwu, na meteor showers nwere ike ịbụ ụzọ nke comets. Ọ bụkwa onye na-anụ ọkụ n'obi nke mbara ala Mercury na Venus. O mere ọtụtụ eserese ma chọpụta oge ntụgharị ha. Na 1965, egosiri na ya na ọtụtụ ihe ndị ọzọ na-esote nke njikọ Mercury adịghị mma.
okporo ụzọ nke comets