\documentclass[svgnames,border=1cm]{standalone} \usepackage{pstricks-add} \usepackage{pst-caelum} \usepackage{xint-meeus} \usepackage[export]{animate} %"C:\Program Files\ImageMagick-7.0.9-Q16\convert.exe" -verbose -density 50 -alpha remove -delay 24 "anim-miniciel.pdf" -loop 0 "anim-miniciel.gif" \begin{document} \begin{animateinline}[% controls, palindrome, begin={\begin{pspicture}(-7.5,-7.5)(7.5,7.5)% \psset[graticule]{scale=1}% \graticule% \graduations% \boundaries% \ecliptique% }, end={\end{pspicture}} ]{15}% 15 frames/s (velocity of the animation) \multiframe{24}{iA=0+5}{% \JulianDay{2021}{4}{22}{\iA}{0}{0} \xintdeffloatvar T := (JDT-2451545.0)/36525;% \def\RPSun{\FloatToFix{(90-DESun(T))/20}} \def\APSun{\FloatToFix{-90-RASun(T)}} \pscircle[fillcolor=Yellow,fillstyle=solid](\RPSun;\APSun){0.1} }% \end{animateinline} \end{document}