With the additions of the dwarfs and/or plutoids our solar system now has 13 official planets. Mercury, Venus, Earth, and Mars form the inner and smaller group of the classical 8 solar system planets, while Jupiter, Saturn, Uranus, and Neptune form the outer or larger group. Pluto, Haumea, Makemake, and Eris comprise the smallest and outermost group of dwarfs or plutoids, whereas Ceres is the lone inner dwarf planet.