Outline of Uranus

The following outline is provided as an overview of and topical guide to Uranus:

Uranus – seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn. For this reason, scientists often classify Uranus and Neptune as "ice giants" to distinguish them from the gas giants. Uranus's atmosphere is similar to Jupiter's and Saturn's in its primary composition of hydrogen and helium, but it contains more "ices" such as water, ammonia, and methane, along with traces of other hydrocarbons. It is the coldest planetary atmosphere in the Solar System, with a minimum temperature of 49 K (−224.2 °C), and has a complex, layered cloud structure with water thought to make up the lowest clouds and methane the uppermost layer of clouds. The interior of Uranus is mainly composed of ice and rock.

Classification of Uranus

Astronomical object
- Gravitationally rounded object
  - Planet
    - Giant planet
      - Ice giant
    - Planet of the Solar System
      - Outer planet
      - Superior planet

Location of Uranus

Milky Way Galaxy – barred spiral galaxy
- Orion Arm – a spiral arm of the Milky Way
  - Solar System – the Sun and the objects that orbit it, including 8 planets, the seventh and second-furthest planet from the Sun being Uranus
    - Orbit of Uranus