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X(110), X(523) foci of the Kellipse (inellipse with center K when the triangle ABC is acute angle) 

K189 = nK0(X6, X230) is the locus of foci of inscribed conics centered on the trilinear polar of X(98) (Tarry point) i.e. the perpendicular at X(6) to the Euler line. It is also spK(X523, X6) in CL055. See also Z+(O) = CL025. 
