Orbite elliptique 1

Définitions de certaines valeurs sur une orbite elliptique

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\documentclass[tikz, border=10pt]{standalone}
\usepackage{tkz-euclide}
\usetikzlibrary{intersections}
\tikzset{directed/.style={postaction={decorate,
      decoration={markings,
      mark=at position .65 with {\arrow{latex}}}}}}
\begin{document}
\begin{tikzpicture}
 \tkzDefPoint(0,0){A}
 \tkzDefPoint(3,0){C}
 \tkzDefPoint(-3,0){D}
 \tkzDefPoint(-2.6,0){F1}
 \tkzDefPoint(1.6,0){F2}
 \tkzDefPoint(2.6,1){E}
 \draw[->,>=stealth](E)--(-1,-2.6);
 \tkzDrawPoints(F2);
 \tkzDrawPoints(E);
 \tkzDrawPoints(A);
 \draw[->,>=stealth,directed] (A) ellipse (3 and 2);
 \draw (D)--(C);
 \draw[<->,>=stealth] (-3,0.3)--(0,0.3) node[fill=white] at (-1.5,0.3) {Demi grand axe};
 \node at (2.8,1.2) {E};
 \node at (2,-0.3) {Soleil};
 \node[right] at (C) {Périhélie};
 \node[left] at (D) {Aphélie};
 \node[below] at (-1,-2.6) {$\Psi$};
 \node[below] at (-3,-1.8) {Chemin de la planète};
\end{tikzpicture}
\end{document}
 
 
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