Table X-P
External Similitude Centers
Points available at the Kimberling's Encyclopedia ETC.
The ETC version: The 10200 points version of 2016.
The "Discoverer" database version: October 2013.
Last update: 2016-11-01

      Kimberling Notation     Role  
  1     X(4) Orthocenter     External Center of Similitude of the Antimedial Circle of the Inner Grebe Triangle and the Cosine Circle of the Inner Grebe Triangle  
  2     X(6) Symmedian Point     External Center of Similitude of the Circumcircle of the Inner Grebe Triangle and the Half-Moses Circle of the Inner Grebe Triangle  
  3     X(40) Bevan Point     External Center of Similitude of the Cosine Circle of the Inner Grebe Triangle and the Excentral Circle of the Inner Grebe Triangle  
  4     X(1161)     External Center of Similitude of the Nine-Point Circle of the Inner Grebe Triangle and the Tangential Circle of the Inner Grebe Triangle  
  5     X(3641)     External Center of Similitude of the Circumcircle of the Inner Grebe Triangle and the Excentral Circle of the Inner Grebe Triangle  
  6     X(5861)     External Center of Similitude of the Antimedial Circle of the Inner Grebe Triangle and the Nine-Point Circle of the Inner Grebe Triangle  
  7     X(5871)     External Center of Similitude of the Circumcircle of the Inner Grebe Triangle and the Nine-Point Circle of the Inner Grebe Triangle  
  8     X(5871)     External Center of Similitude of the Incircle of the Inner Grebe Triangle and the Inner Johnson-Yff Circle of the Inner Grebe Triangle  
  9     X(5871)     External Center of Similitude of the Incircle of the Inner Grebe Triangle and the Outer Johnson-Yff Circle of the Inner Grebe Triangle  
  10     X(5871)     External Center of Similitude of the Inner Johnson-Yff Circle of the Inner Grebe Triangle and the Outer Johnson-Yff Circle of the Inner Grebe Triangle  
  11     X(6277)     External Center of Similitude of the Nine-Point Circle of the Inner Grebe Triangle and the Sine-Triple-Angle Circle of the Inner Grebe Triangle  
  12     X(6281)     External Center of Similitude of the Cosine Circle of the Inner Grebe Triangle and the Nine-Point Circle of the Inner Grebe Triangle