• The Gauquelin Planet-Profession Effects. Michel Gauquelin's discovery (aided by Françoise Gauquelin) of the specific placement at birth of the Moon, Venus, Mars, Jupiter and Saturn for highly successful people in eleven different professions. Additional findings by Suitbert Ertel, Arno Müller and others.

• The Gauquelin Data online

• Coming soon: "A Brief Memo on LST Effects"

• New links to related sites of interest: Updated November 2023

• Software for planetary research.

• Some implications of the "Gauquelin planetary effects".
  • Science, Astrology and the Gauquelin Planetary Effects.
  • The Rise and Fall of Eminence in Semantic Space

• Re the "Mars effect" controversy. . .
  • As this site begins to focus on the fundamental research that was the center of Michel Gauquelin's life work, pages such as those below that are primarily related to this debunking controversy will be moved to a section in the back pages.
  • A brief chronology of the controversy
  • A review of The 'Mars Effect', A French Test of Over 1,000 Sports Champions, a skeptic book outlining a study of the Mars effect that took 14 years from start to finish, violating most and perhaps all points of the protocol agreed to Gauquelin and its board.
  • Information about The Tenacious Mars Effect, a book co-authored by Suitbert Ertel and Kenneth Irving.
  • An expanded version of an article by Ertel and Irving that appeared in the Skeptical Inquirer.