551 Ortrud

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551 Ortrud
Discovery
Discovered by Max Wolf
Discovery site Heidelberg
Discovery date16 November 1904
Designations
(551) Ortrud
PronunciationGerman: [ˈɔʁtʁʊt] [1]
1904 PM
Orbital characteristics [2]
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°
Physical characteristics
Mean radius
39.23±2.05 km
13.05  h (0.544  d)
0.0426±0.005
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 .

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    References

    1. (German Names)
    2. "551 Ortrud (1904 PM)". JPL Small-Body Database . NASA/Jet Propulsion Laboratory . Retrieved 5 May 2016.