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Why is Uranus blue?

Viewed 392 times 2020-4-6 11:44 |System category:Life

Uranus is the seventh planet discovered in the Solar System that also led to the discovery of the last planet, Neptune they are both referred to as ice giants. Officially recognized in 1781 after many observations in the past, it is the third-largest planet of the Solar System.
Since ancient times it was not recognized due to its dimness and slow orbit. However, in 1781 Sir William Herschel announced its discovery being the first planet discovered with the help of a telescope.
  • It is the only planet whose name is derived directly from a figure of Greek mythology.
  • Uranus is the seventh planet from the Sun, around 1.8 billion miles or 2.9 billion kilometers distance away.
  • It has the third-largest planetary radius and fourth-largest mass in the
  • Its volume is about 63 times greater than Earth’s, which means that 63 Earths can fit inside it.
  • The gravity on Uranus is about 8.87 m/s² or around 86% of the surface gravity on Earth which is 9.807 m/s².
  • It takes Uranus 84 years to complete an orbit of the Sun, the longest from all the planets in the solar system.
  • It also has the shortest day. One rotation on Uranus takes about 17 hours.
  • Uranus has the coldest planetary atmosphere in the solar system, -224 degrees Celsius;-371 degrees Fahrenheit.
  • Uranus and Neptune share similar composition, both have bulk chemical compositions which differ from that of the larger gas giants Jupiter and Saturn. Because of this Uranus and Neptune are classified as ice giants rather than gas giants, for easier distinction.
  • Uranus has a similar atmosphere to Jupiter and Saturn in its primary composition of hydrogen and helium yet, it contains more “ices” such as water, ammonia, methane and traces of other hydrocarbons.
  • Though it appears featureless, without the cloud bands or storms associated with the other giant planets, it does have complex, layered cloud structure with water thought to make up the lowest clouds and methane the uppermost layer of clouds.
  • Through analysis, the interior of Uranus has been stated to be made up primarily of ices and rock.
  • Uranus has 13 known rings around it. The innermost rings are narrow and dark, and its outermost rings are brightly colored.
  • Like the other gas giants, it also has a magnetosphere and many moons. Until now, 27 moons have been discovered orbiting Uranus. They were named after characters from the works of William Shakespeare and Alexander Pope.
  • Uranus has been visited only once by a spacecraft: Voyager 2.
Hence Uranus' blue color is the result of absorption of red light by methane in the upper atmosphere. There may be colored bands like Jupiter's but they are hidden from view by the overlaying methane layer. Like the other gas planets, Uranus has rings.

Uranus planet

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Reply Report Zorro2 2020-4-9 11:38
Uranus' blue color is the result of absorption of red light by methane in the upper atmosphere. There may be colored bands like Jupiter's but they are hidden from view by the overlaying methane layer. Like the other gas planets, Uranus has rings.

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