Evolutionary Distribution of Small Celestial Bodies, Their Migration, and the Relationship with Meteor Showers

In this work, we consider near-Earth objects such as asteroids approaching Earth, short-period comets approaching Earth, extinct cometary nuclei, and meteoroids. The mechanism of transition from short-period near-Earth comets to extinct comets is described. We discuss that most Earth-approaching asteroids likely migrated from the Main Asteroid Belt. Within the conceptual framework that relates extinct cometary nuclei to meteoroid showers, we identify the parent bodies associated with the Andromedids by applying our proprietary synthetic method for establishing the genetic connections of small bodies. For the identified asteroids, orbital integrations were carried out backward in time over a span of 10 000 years. The time evolution of the orbital parameters was constructed and analyzed.