551 Ortrud
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 16 November 1904 |
| Designations | |
| 1904 PM | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.06 yr (40565 d) |
| Aphelion | 3.3325 AU (498.53 Gm) |
| Perihelion | 2.6019 AU (389.24 Gm) |
| 2.9672 AU (443.89 Gm) | |
| Eccentricity | 0.12311 |
| 5.11 yr (1866.9 d) | |
| 306.688° | |
| 0° 11m 34.188s / day | |
| Inclination | 0.39727° |
| 6.0272° | |
| 68.010° | |
| Earth MOID | 1.61525 AU (241.638 Gm) |
| Jupiter MOID | 1.92173 AU (287.487 Gm) |
| Jupiter Tisserand parameter | 3.252 |
| Physical characteristics | |
Mean radius | 39.23±2.05 km |
| 13.05 h (0.544 d) | |
| 0.0426±0.005 | |
| 9.57 | |
|
| |
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 (1904 PM)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
External links
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