Discovered by Max Wolf Alternative names 1904 PM Aphelion 3.3325 AU (498.53 Gm) Discovered 16 November 1904 Orbits Sun Asteroid group Asteroid belt | Discovery date 16 November 1904 Observation arc 111.06 yr (40565 d) Perihelion 2.6019 AU (389.24 Gm) Absolute magnitude 9.57 Discoverer Max Wolf | |
Discovery site Heidelberg-Königstuhl State Observatory Max Wolf discoveries 550 Senta, 540 Rosamunde, 528 Rezia | ||
551 Ortrud is a minor planet orbiting the Sun. It is located in the Main Belt. In light of the practice of the discover ca. 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
551 Ortrud Wikipedia(Text) CC BY-SA