I find this image exceptional in giving an outlook of the whole solar system and its known bodies
Beyond Neptune (the so called trans-neptunian region), we have 4 dwarf planets, Pluto, Haumea, Makemake, Eris
The IAU propose a formal definition of the planets which I feel should be used to avoid confusion:
https://en.wikipedia.org/wiki/IAU_definition_of_planet states that, in the Solar System, a planet is a celestial body which:<br /><br />is in orbit around the Sun,<br />has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and<br />has "cleared the neighborhood" around its orbit.<br />A non-satellite body fulfilling only the first two of these criteria is classified as a "dwarf planet". According to the IAU, "planets and dwarf planets are two distinct classes of objects". A non-satellite body fulfilling only the first criterion is termed a "small Solar System body" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.)
i found this charted illustration very useful mccoy because it shows the relative distance these objects are from the Sun. i read this in an astrological article:
Makemake (pronounced maki-maki) is the third largest Kuiper belt dwarf planet, slightly smaller than Eris (the largest) and Pluto (who was demoted by astronomers to dwarf planet status following the discovery of Eris). Makemake has an eliptical orbit of about 309 years around the Sun, and unlike Eris and Pluto, Makemake appears to have no moon(s). Makemake and Haumea are designated by their original numbers below with labels below the pictures.
As you can see by the diagram, that mccoy took the time to dig up, Pluto orbits closer to the Sun and to the earth then the other dwarf planets. It even comes within the orbit of Neptune for a time. Thus its relative significance in astrology.
2003 EL61 = Haumea 2005 FY9 = Makemake
