how many planets do we have
We currently recognize 8 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Quick Scoop: So why 8 and not 9?
For a long time, people were taught there were 9 planets, with Pluto as the ninth.
In 2006, the International Astronomical Union (IAU) refined the definition of a “planet,” and Pluto no longer fit that definition, so it was reclassified as a dwarf planet.
Under the IAU definition, a planet must:
- Orbit the Sun.
- Be massive enough that its gravity makes it roughly spherical.
- Have “cleared its neighborhood,” meaning it dominates its orbit instead of sharing it with lots of similar-sized objects.
Pluto fails the third condition because it shares its orbital region with many other icy bodies in the Kuiper Belt.
Mini breakdown
- Inner (rocky) planets: Mercury, Venus, Earth, Mars.
- Outer giants: Jupiter, Saturn (gas giants), Uranus, Neptune (ice giants).
- Dwarf planets (not counted in the “8”): Pluto, Eris, Ceres and others, which are round but haven’t cleared their orbits.
So, when people ask “how many planets do we have?” the standard, official answer today is: 8 planets in our solar system , plus several dwarf planets and thousands of known planets around other stars (exoplanets).
Information gathered from public forums or data available on the internet and portrayed here.