800x800
center detail
Mathematica code:
Graphics[ GraphicsComplex[ Table[ {-.9908^n*Sin[n*3.87613], .9908^n*Cos[n*3.87613]}, {n, 0, 750}], Polygon[Table[i, {i, 1, 750, 1}]]], PlotRange -> 1, ImageSize -> 800]