The Titius-Bode law was formulated around 1770 and correctly calculated the position of Uranus before it was even discovered. Under this rule-of-thumb, the ratio between the orbital period of the first and second planet is the same as the ratio between the second and the third planet and so on. Now a group of Australians and Danes claim that “We decided to use this method to calculate the potential planetary positions in 151 planetary systems, where the Kepler satellite had found between 3 and 6 planets. In 124 of the planetary systems, the Titius-Bode law fit with the position of the planets as good as or better than our own solar system.”http://www.nbi.ku.dk/english/news/news15/planets-in-the-habitable-zone-around-most-stars-calculate-researchers/
If this is true, then the T-B law is resurrected from the dead, because I knew of very few astronomers who gave it credence, deeming it quasi-mystical. In fact, if these ratios hold up (and I’ll want to see it verified) it would rank as among the most important discoveries of the Kepler mission or, indeed, planetary science. Moreover: “Using T-B’s law we tried to predict where there could be more planets further out in the planetary systems.”
Mind you, this flies in the face of a major Kepler discovery, that a vast fraction of planetary systems hug closer to their star that the orbit of Mercury, including massive Jovian gas giants. Many planetologists hold that this indicates systems that shift orbits considerably, especially in their early epochs. A result that cannot be consistent with the authors’ claims of a powerful Titus-Bode resonance. At least, it’s hard to reconcile.