1462 Zamenhof (). According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, "Zamenhof" measures between 25.91 and 27.645 kilometers in diameter and its surface has an albedo between 0.087 and 0.121. The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.0891 and a diameter of 25.62 kilometers based on an absolute magnitude of 11.2. This minor planet was named after L. L. Zamenhof (1859–1917), a Polish-Jewish ophthalmologist and creator of Esperanto, a constructed international language. This asteroid and 1421 Esperanto are considered to be the most remote Zamenhof-Esperanto objects (a
Ludwik Birkenmajer of scholars. He was married Zofia (Sophie), the daughter of Franciszek Karliński, the professor of astronomy in the Jagiellonian University, and inherited his library embracing mostly the books on mathematics and physics. They had three sons: Aleksander Ludwik (historian of culture and exact sciences, and bibliologist), Józef (poet, interpreter and literature historian), and Wincenty (Polish philologist, teacher and renown Tatra Mountains-climber). His grandson is Krzysztof Birkenmajer (professor of geology, member of the Polish Academy of Sciences). In 2011 the Institute for the History of Science of the Polish Academy of Sciences received the name of father and son: Ludwik &