Celestial Mechanics and Dynamical Astronomy

, Volume 53, Issue 2, pp 129–143

On the unmodeled perturbations in the motion of uranus

  • Adrian Brunini

DOI: 10.1007/BF00049461

Cite this article as:
Brunini, A. Celestial Mech Dyn Astr (1992) 53: 129. doi:10.1007/BF00049461


In this paper we apply a numerical method to determine unmodeled perturbations in an attempt to explain the observed discrepancies in the motion of Uranus. We find that the estimated perturbation shows some significant periods that could be attributed to insufficient knowledge of the perturbations from some of the known planets. On the assumption that the gravitational attraction of an unknown planet is the origin of the deviations, the best planar solution of the inverse problem is a planet of 0.6 Earth masses, with true longitude of 133° (1990.5), semi major axis a = 44 AU and eccentricity e = 0.007.

Key words

Uranus planetary perturbations 

Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Adrian Brunini
    • 1
  1. 1.Facultad de Ciencias Astronomicas y GeofisicasUniversidad Nacional de La PlataLa PlataArgentina

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