Ortrud (minor planet designation: 551 Ortrud) is a minor planet orbiting the Sun. It is located in the Main Belt. In light of the practice of the discover c. 1904 to name his asteroids after female characters in opera, it is likely that Ortrud is named after a character in Richard Wagner's opera Lohengrin. References External links 000551 Discoveries by Max Wolf Named minor planets Richard Wagner 000551 000551 19041116