%
% common.tex
%
% (c) 2022 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule
%

\def\labelA{\node at (0.7,3.8) {$A$};}

\def\labelSpica{
	\node at (-3.6,-2.8) {Spica};
}
\def\labelAltair{
	\node at (3.0,-2.3) {Altair};
}
\def\labelArktur{
	\node at (-3.3,-0.7) {Arktur};
}
\def\labelDeneb{
	\node at (3.4,0.9) {Deneb};
}

\def\labelP{\node at (0,-0.2) {$P$};}

\def\labellone{\node at (0.1,1.9) {$l$};}
\def\labelltwo{\node at (0.1,2.0) {$l$};}

\def\labelhSpica{
	\coordinate (Spica) at (-1.8,-0.3);
	\node at (Spica) {$h_{\text{Spica}}\mathstrut$};
}
\def\labelhAltair{
	\coordinate (Altair) at (1.1,-1.0);
	\node at (Altair) {$h_{\text{Altair}}\mathstrut$};
}
\def\labelhArktur{
	\coordinate (Arktur) at (-1.3,-0.3);
	\node at (Arktur) {$h_{\text{Arktur}}\mathstrut$};
}
\def\labelhDeneb{
	\coordinate (Deneb) at (1.6,0.45);
	\node at (Deneb) {$h_{\text{Deneb}}\mathstrut$};
}

\def\labeldSpica{
	\coordinate (dSpica) at (-1.5,2.6);
	\fill[color=white,opacity=0.5]
		($(dSpica)+(-1.8,0.13)$)
		rectangle
		($(dSpica)+(-0.06,0.60)$);
	\node at (dSpica) [above left]
		{$90^\circ-\delta_{\text{Spica}}\mathstrut$};
}
\def\labeldAltair{
	\coordinate (dAltair) at (2.0,2.1);
	\fill[color=white,opacity=0.5]
		($(dAltair)+(0.10,0.10)$)
		rectangle
		($(dAltair)+(2.0,0.60)$);
	\node at (dAltair) [above right]
		{$90^\circ-\delta_{\text{Altair}}\mathstrut$};
}
\def\labeldArktur{
	\coordinate (dArktur) at (-1.2,2.5);
	\fill[color=white,opacity=0.5]
		($(dArktur)+(-1.8,0.10)$)
		rectangle
		($(dArktur)+(-0.06,0.55)$);
	\node at (dArktur) [above left]
		{$90^\circ-\delta_{\text{Arktur}}\mathstrut$};
}
\def\labeldDeneb{
	\coordinate (dDeneb) at (2.0,2.8);
	\fill[color=white,opacity=0.5]
		($(dDeneb)+(0.05,0.60)$)
		rectangle
		($(dDeneb)+(1.87,0.10)$);
	\node at (dDeneb) [above right]
		{$90^\circ-\delta_{\text{Deneb}}\mathstrut$};
}