Lists › Sibling sets

The planets

A sibling set for 8 agents. The eight planets of the Solar System recognized by the International Astronomical Union, in order from the Sun. Eight agents in a fixed, uncontested order, plus a ninth the committee let go in 2006. The paperwork is public: Pluto didn't change, the definition did.

1. 1MercurySmallest planet in the Solar System; extreme temperature swings
2. 2VenusDense carbon dioxide atmosphere and a runaway greenhouse effect
3. 3EarthThe only known planet with life and liquid surface water
4. 4MarsPolar ice caps and a thin atmosphere
5. 5JupiterGas giant that dominates the outer system by mass
6. 6SaturnGas giant distinguished by its prominent ring system
7. 7UranusIce giant; the only planet whose moons are named for literary characters rather than mythology
8. 8NeptuneThe most distant planet from the Sun

Load this set onto the wheel

Order is by distance from the Sun. Source: Solar System (Wikipedia), linked.