Astronomy:551 Ortrud
From HandWiki
Short description: Main-belt asteroid in the Solar System
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 16 November 1904 |
| Designations | |
| (551) Ortrud | |
| Pronunciation | German: [ˈɔʁtʁʊt][1] |
| 1904 PM | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.06 yr (40565 d) |
| |{{{apsis}}}|helion}} | 3.3325 astronomical unit|AU (498.53 Gm) |
| |{{{apsis}}}|helion}} | 2.6019 AU (389.24 Gm) |
| 2.9672 AU (443.89 Gm) | |
| Eccentricity | 0.12311 |
| Orbital period | 5.11 yr (1866.9 d) |
| Mean anomaly | 306.688° |
| Mean motion | 0° 11m 34.188s / day |
| Inclination | 0.39727° |
| Longitude of ascending node | 6.0272° |
| 68.010° | |
| Physical characteristics | |
| Mean radius | 39.23±2.05 km |
| Rotation period | 13.05 h (0.544 d) |
| Geometric albedo | 0.0426±0.005 |
| Absolute magnitude (H) | 9.57 |
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
- 551 Ortrud at AstDyS-2, Asteroids—Dynamic Site
- 551 Ortrud at the JPL Small-Body Database
 |  |
