Let H be the orthocenter; Oa, Ob, Oc the circumcenters of HBC, HCA, HAB; Qa, Qb, Qc the isogonals of Oa, Ob, Oc in ABC. The circles {QaBC}, {QbCA}, {QcAB} concur at X(186) and the points Qa, Qb, Qc are collinear in the tripolar of X(275).