Democratic Sentinel, Volume 11, Number 9, Rensselaer, Jasper County, 1 April 1887 — Asteroid Comets. [ARTICLE]

Asteroid Comets.

While agreeing in general with the theory that comets have their origin beyond the limits of the solar system, Prof. Daniel Kirkwood finds proof that some of those of short period are minor planets whose orbits in the asteroid zone have been changed through the perturbing influence of the larger planets. The third comet of 1884, for instance, seems to have been drawn from the asteroids bv Jupiter in May, 1875.