There are eight planets in the solar system. These are, in order from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
. This classification follows the International Astronomical Union's (IAU) 2006 definition of a planet, which excludes Pluto, previously considered the ninth planet. Pluto is now classified as a dwarf planet because it has not cleared its orbital neighborhood
. Thus, the solar system officially consists of eight planets, along with several recognized dwarf planets such as Ceres, Pluto, Haumea, Makemake, and Eris
