\documentclass[svgnames,a4paper]{standalone} \usepackage[T1]{fontenc} \usepackage[frenchb]{babel} \usepackage{bera} \usepackage{xcolor} \usepackage{pst-caelum} \usepackage{xint-meeus} \begin{document} \begin{pspicture}(-7,-7)(7,7) \psset[caelum]{ sideralrotation, hemisphere=south, projection=pm, lat=-18.9122, lon=0, month=5, % l'horizon bordé est à 20° de hauteur day=13, hour=21, horizon=0, lang=de} \caelum{Sky} \caelum[linecolor=MidnightBlue!90!LightBlue,linewidth=0.25pt]{Graticule}% \caelum[linestyle=dotted,linewidth=0.25pt,linecolor=LightSkyBlue]{Boundaries} \caelum[linewidth=0.25pt,fillcolor=Goldenrod,size=1.4]{Asterisms} \caelum[linecolor=Black]{Graduations} \caelum[linecolor=Goldenrod,fillcolor=Black,opacity=0.8,linewidth=1pt]{Horizon} \end{pspicture} \end{document}