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Uranus

File:Uranus_Voyager2_color_calibrated.png · Wikimedia Commons · See Wikimedia Commons

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Uranus

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Also known as Sol VII, Georgium Sidus, Sol h, the Georgian Planet, Georgian Planet, the, 34 Tauri, Planet Uranus, Sol 7

Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls "ice" or volatiles. The planet's atmosphere has a complex layered cloud structure and has the lowest minimum temperature () of all the Solar System's planets. It has a marked axial tilt of 82.23° with a retrograde rotation period of 17 hours and 14 minutes. This means that in an 84-Earth-year orbital period around the Sun, its poles get around 42 years of continuous sunlight, followed by 42 years

OverviewAI-generated

Uranus is an ice giant and outer planet in the outer Solar System, orbiting the Sun. It was discovered by William Herschel on March 13, 1781, and named after Uranus and Urania. The planet has an atmosphere and includes the moons Cordelia, Ophelia, Bianca, and Cressida.

Its orbital characteristics include a semi-major axis of 2870658186, an eccentricity of 0.04725744, and an inclination of 6.48. The argument of periapsis is 170.95427630, and the longitude of the ascending node is 74.01692503. The synodic period is 369.66. Uranus has a radius of 25559, a mass of 86810, and a flattening of 0.0229. It is represented by the Uranus symbol.

Synthesized by Vinony from 25 facts across 3 sources: Wikidata, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Key facts

Planet.name
Uranus
Planet.symbol
24px|⛢|class=skin-invert, 24px|♅|class=skin-invert
Planet.image
Uranus Voyager2 color calibrated.png
Planet.caption
Uranus in true colour, as captured by Voyager 2 on January 24, 1986. Its pale, muted appearance is due to a shroud of haze above its clouds.
Planet.background
LightBlue
Planet.discoverer
[[]]
Planet.epoch
J2000
Planet.time_periastron
17–19 August 2050
Planet.synodic_period
369.66 days
Planet.avg_speed
6.80 km/s
Planet.satellites
29
Planet.equatorial_radius
4.007 Earths
Planet.polar_radius
3.929 Earths
Planet.surface_area
15.91 Earths
Planet.volume
63.086 Earths
Planet.mass
14.536 Earths GM=
Planet.moment_of_inertia_factor
(estimate)
Planet.escape_velocity
21.3 km/s

via Wikipedia infobox

Research

287 papers

via PubMed

~53 min read

Encyclopedic overview

26 sections
Contents
  • History
  • {{anchor|34 Tauri}}<!-- Used by an incoming redirect --> Discovery
  • Name
  • Formation
  • Orbit and rotation
  • Axial tilt
  • Visibility from Earth
  • Internal structure
  • Internal heat
  • Atmosphere
  • Composition
  • Troposphere
  • Upper atmosphere
  • Climate
  • Banded structure, winds and clouds
  • Seasonal variation
  • Magnetosphere
  • Moons
  • Rings
  • Exploration
  • In culture
  • See also
  • Notes
  • References
  • Further reading
  • External links

Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls "ice" or volatiles. The planet's atmosphere has a complex layered cloud structure and has the lowest minimum temperature () of all the Solar System's planets. It has a marked axial tilt of 82.23° with a retrograde rotation period of 17 hours and 14 minutes. This means that in an 84-Earth-year orbital period around the Sun, its poles get around 42 years of continuous sunlight, followed by 42 years of continuous darkness.

Uranus has the third-largest diameter and fourth-largest mass among the Solar System's planets. Based on current models, inside its volatile mantle layer is a rocky core, and a thick hydrogen and helium atmosphere surrounds it. Trace amounts of hydrocarbons (thought to be produced via hydrolysis) and carbon monoxide along with carbon dioxide (thought to have originated from comets) have been detected in the upper atmosphere. There are many unexplained climate phenomena in Uranus's atmosphere, such as its peak wind speed of , variations in its polar cap, and its erratic cloud formation. The planet also has very low internal heat compared to other giant planets, the cause of which remains unclear.

Excerpted from Wikipedia’s “Uranus” article, available under the CC BY-SA 4.0 licence.

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