\documentclass[pstricks]{standalone}
\usepackage{pst-sphericaltrochoid}

\begin{document}
\multido{\i=0+10}{37}{%
  \begin{pspicture}(-4,-6)(4,3)
  \psSphericalTrochoid[Sphere,rG=1,rR=0.2,tmax=\i,t=\i,Decran=2000,w=30,viewpoint=1000 30 60 rtp2xyz]
  \end{pspicture}}
\end{document} 