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dist = [0.387, 0.723, 1.000, 1.523, 5.203, 9.541, 19.190, 30.086, 39.507]
function f(x) { y = 1/0; return y }

aX = -5; bX = 40; aY = -45/4*3/2; bY = 45/4*3/2
Dx = 5; Dy = 1/0

C1="black"; C2=C1;C3=C1;C4=C1;C5=C1;C6=C1;C7=C1;C8=C1;C9=C1
C3="red"
Lx=[0,2.5]; Ly=[0,-2.5]
R=dist[0]; P=-0;Q=0; gr1=0;gr2=360
 function XX1(t) {x=Math.cos(t)*R+P; if(Ix(x)<1){x=1/0}; return x}
 function YY1(t) {y=Math.sin(t)*R+Q; if(Ix(x)<1){x=1/0}; return y}; t1=Math.PI/180*gr1; t2=Math.PI/180*gr2
 for(j=0;j<=5e3;j=j+1) {t=t1+(t2-t1)/5e3*(j-1);L1x[j]=XX1(t);L1y[j]=YY1(t)}
R=dist[1]
 function XX2(t) {x=Math.cos(t)*R+P; if(Ix(x)<1){x=1/0}; return x}
 function YY2(t) {y=Math.sin(t)*R+Q; if(Ix(x)<1){x=1/0}; return y}; t1=Math.PI/180*gr1; t2=Math.PI/180*gr2
 for(j=0;j<=5e3;j=j+1) {t=t1+(t2-t1)/5e3*(j-1);L2x[j]=XX2(t);L2y[j]=YY2(t)}
 ...
AY=BY=""

T1=["Mercurio, Venere, Terra, Marte, Giove, Saturno, Urano, Nettuno, Plutone",17.5,-17.7]
T2=["Sole",3,-3]; T0=["1 = dist Sole-Terra",10,10]