\begin{figure}[htb]
	\centering

\begin{tikzpicture}
	

\draw[-latex] (-3,0) -- (3,0) node[below] {$x$};
\draw[-latex] (0,-1.5) -- (0,2) node[left] {$y$};
\draw (0,0) ellipse (2.03cm and 1.17cm);

\coordinate[] (A) at (-0.75,0) ;
\coordinate[] (B) at (0,1.17);
\coordinate[] (C) at (0.75,0);

\coordinate[] (D) at (-0.35,0);
\coordinate[] (E) at (0.35,0);
\coordinate[] (F) at (0,0.4);

\draw (A) -- (B) node[midway,xshift=-7] {$a$};
\draw (C) -- (B)node[midway,xshift=7] {$a$}   ;

\draw[fill=black] (A) circle (0.05) node[below] {$F_1$};
\draw[fill=black] (C) circle (0.05) node[below] {$F_2$};

\node[yshift=-5] at (D) {$e$};
\node[yshift=-5] at (E) {$e$};
\node[xshift=4] at (F) {$b$};


\draw[-latex] (5,0) -- (11,0) node[below] {$x$};
\draw[-latex] (8,-1.5) -- (8,2) node[left] {$y$};
\draw (8,0) ellipse (2.03cm and 1.17cm);

\coordinate[] (G) at (7.25,0) ;
\coordinate[] (H) at (8.75,0) ;

\coordinate[] (I) at (9.33,0.88) ;


\draw[fill=black] (G) circle (0.05) node[below] {$F_1$};
\draw[fill=black] (H) circle (0.05) node[below] {$F_2$};

\draw[fill=black] (I) circle (0.05) node[above] {$P$};

\coordinate[] (J) at (7.65,0);
\coordinate[] (K) at (8.35,0);

\node[yshift=-5] at (J) {$e$};
\node[yshift=-5] at (K) {$e$};

\coordinate[] (L) at (9.33,0); %x
\coordinate[] (M) at (8,0.88); %y


\draw (G) -- (I);
\draw (H) -- (I);

\draw[dashed](L) -- (I);
\draw[dashed](M) -- (I);

\node[xshift=-6] at (M) {$y$};
\node[yshift=-6] at (L) {$x$};
	
\end{tikzpicture}
\caption{Ellipse mit Mittelpunkt $M(0,0)$}
\end{figure}

