diff --git a/graphics/pdf/struttura_sole.pdf b/graphics/pdf/struttura_sole.pdf
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diff --git a/graphics/struttura_sole.tex b/graphics/struttura_sole.tex
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+\documentclass{standalone}
+%
+\usepackage{tikz}
+\usetikzlibrary{backgrounds,decorations.pathmorphing,arrows.meta}
+\usepackage{tkz-euclide}
+%
+\usepackage{xcolor}
+%
+\definecolor{core1}{HTML}{FF5E16}
+\definecolor{core2}{HTML}{FF9616}
+\definecolor{core3}{HTML}{FFD016}
+%
+\usepackage{fontspec}
+\setmainfont{Open Dyslexic}
+%
+\title{Struttura del Sole}
+\begin{document}
+	\tikzset{
+		partial ellipse/.style args = {#1:#2:#3}{insert path={+ (#1:#3) arc (#1:#2:#3)}},
+	}
+	\begin{tikzpicture}[background rectangle/.style={fill=white},show background rectangle,>={[inset=0,angle'=27]Stealth}]
+		%
+		\begin{scope}
+			\draw [fill=core1,ultra thick] (15,0) circle (10cm);
+			\draw [fill=core3] (15,0) [partial ellipse=-90:90:9.5 and 9.5] (15,0) [partial ellipse=90:270:7 and 9.5];
+			\draw [fill=core2] (15,0) [partial ellipse=-90:90:9 and 9] (15,0) [partial ellipse=90:270:4 and 9];
+			\draw [fill=core3] (15,0) [partial ellipse=-90:90:5 and 5] (15,0) [partial ellipse=90:270:2 and 5];
+			\draw (15,9.5) -- (15,-9.5);
+			\draw [fill=white] (15,0) [partial ellipse=-90:90:2 and 2] (15,0) [partial ellipse=90:270:0.7 and 2];
+		\end{scope}
+	\end{tikzpicture}
+\end{document}
\ No newline at end of file