attractor vs cynosure

attractor

noun
  • Something which attracts. 

  • A set of points or states to which a dynamical system evolves after a long enough time. That is, points that get close enough to the attractor remain close even if slightly disturbed. 

cynosure

noun
  • Something that is the center of attention; an object that serves as a focal point of attraction and admiration. 

  • Ursa Minor or Polaris, the North Star, used as a guide by navigators. 

  • That which serves to guide or direct; a guiding star. 

How often have the words attractor and cynosure occurred in a corpus of books? (source: Google Ngram Viewer )