The Jerabek hyperbola is a circumconic that is the isogonal conjugate of the Euler line. Since it is a circumconic passing through the orthocenter, it is a rectangular hyperbola and has center on the nine-point circle.

circumcenter | de Longchamps point | Euler line | isogonal conjugate | Jerabek antipode | Jerabek center | nine-point center | orthocenter | symmedian point