1421 Esperanto in the outer asteroid belt at a distance of 2.8–3.4 AU once every 5 years and 5 months (1,983 days; semi-major axis of 3.09 AU). Its orbit has an eccentricity of 0.08 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins with its first observation as at Heidelberg Observatory in October 1906, almost 30 years prior to its official discovery observation at Turku. This minor planet was named by the discoverer after the artificial language, Esperanto, which was created by inventor and writer, Ludwik Lejzer Zamenhof (1859–1917), who used the pseudonym "Doktoro Esperanto". The
Ludwik Witold Paszkiewicz Ludwik Witold Paszkiewicz Ludwik Paszkiewicz DFC (21 October 1907 – 27 September 1940) was a Polish fighter ace of the Polish Air Force in World War II with 6 confirmed kills. Ludwik Paszkiewicz was born in 1907, the son of Ludwik and Janina. He studied at the Warsaw University of Technology then at the Lviv Polytechnic. In 1931 after his graduation he began military service. After completing Cadet Reserve course in Mołodeczno, Paszkiewicz entered the Polish Air Force Academy. On 4 August 1934 he became second lieutenant ("podporucznik"). Then he was assigned to the Polish 112th Fighter Escadrille. In 1937,