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 Maciej Angeles, California. Ludwik Maciej had two sons, Sylwester and Luis, neither of whom were born in Poland. Ludwik Maciej died on March 12, 2007, in Los Angeles, California, and was buried on April 10, 2007, at the cemetery at Church of the Blessed Virgin Mary. With the help of Christians in Czechowice-Dziedzice, his ashes were brought from the USA by his son and buried in Ludwik Maciej's family grave at the cemetery. Ludwik Maciej Ludwik Maciej (May 16, 1915 – March 12, 2007) was a Polish military pilot, who participated in World War II. Son of Jan and Anna (née