Gịnị bụ ajụjụ a: "Site na amụma nke Urbain Le Verrier, e mere nchọpụta telescopic na-akwado ịdị adị nke nnukwu mbara ala n'abalị nke September 23<unk>24, 1846, na Berlin Observatory, site na onye na-enyocha mbara igwe Johann Gottfried Galle (nke Heinrich Louis d'Arrest nyere aka), na-arụ ọrụ site na ngụkọta nke Le Verrier"? Isiokwu ya bụ Nchọpụta Neptune.
"onye chọpụtara mbara ala Neptune?"