Evolving Orbits – over time, gravitational perturbations may have caused the orbit of Pluto to become more elliptical. digital, 2004, copyright Don Dixon
451 Solar System with Kuiper Objects
Diagram shows a new way of defining the solar system as consisting of 8 planets and orbiting belts of planetoids, including the Trojan and Centaur asteroid groups.The orbits of Pluto and Eris are shown. Digital, for Scientific American; Artwork © 2007 Don Dixon / cosmographica.com
Diagram of the sun and planets showing their relative scale. The bluish haze beyond the orbit of Neptune represents the inner Kuiper Belt where dwell Pluto and other minor planets. The relative distances of the planets are NOT to scale. Diagram created for Scientific American in 2006.
Spacecraft Probe the Kuiper Belt
505 Solar system planets to scale against the limb of the sun. Relative sizes are correct. Distances have been compressed. digital, 2016; © Don Dixon / cosmographica.com