List K
Similitude Centers of Circles 1
Points available in the Kimberling's Encyclopedia ETC.
The ETC version: The 11186 points version of 2016.
The "Discoverer" database version: October 2013.
Last update: 2017-01-24
  1. The Internal Center of Similitude of the Incentral Circle and the Nine-Point Circle wrt the Incentral Triangle is the X(1962).
  2. The External Center of Similitude of the Incentral Circle and the Nine-Point Circle wrt the Incentral Triangle is the X(500).
  3. The Internal Center of Similitude of the Incentral Circle and the Second Brocard Circle wrt the Incentral Triangle is the X(8143).