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### Theory:

Planets in the solar system
 Planet Colour Satellites Rotation period Revolution period Uniqueness Mercury Grey - $$58.65\ days$$ $$88\ days$$ Fastest planet Venus Yellow - $$243\ days$$ $$225\ days$$ Hottest planet Earth Blue and green $$1$$ $$24\ hours$$ $$365.25\ days$$ Existence of life Mars Red $$2$$ $$24.62\ hours$$ $$687\ days$$ Red planet Jupiter Brownish-yellow $$65$$ $$9.62\ hours$$ $$12\ years$$ Largest gas giant with theGreat Red Spot Saturn Yellow $$60$$ $$10.23\ hours$$ $$29.46\ years$$ Least density planet with seven rings around it Uranus Blue-green $$27$$ $$17\ hours$$ $$84\ years$$ Highly tilted rotational axis Neptune Blue $$13$$ $$18\ hours$$ $$165\ years$$ Windiest, cold planet