| Abstract: | The solar nebula theory hypothesizes that planets are formed from an accretion disk of material that, over time, condenses into dust, small planetesimals, and that the planets should have, on average, coplanar, nearly circular orbits. If the orbit of Pluto has a different origin to the other planets in the solar system, then there will be tremendous repercussions on modelling the spacecrafts for a mission to Pluto. We test here the nebula theory for Pluto, using both parametric and non-parametric methods. We first develop asymptotic distributions of extrinsic means on a manifold, and then derive bootstrap and large sample distributions of the sample mean direction. Our parametric and non-parametric analyses provide very strong evidence that the solar nebula theory does not hold for Pluto. |
