Together with Jupiter, Saturn and Neptune, Uranus is one of the giant gas planets of the Solar System. It lacks a solid surface, and its atmosphere is composed mainly of hydrogen and helium. It also contains a small amount of methane and some traces of water and ammonia.
The greenish blue color that Uranus looks is due to methane. When the methane layer passes through the sun, the gas absorbs almost all the red light, giving way to the blue light and giving it its peculiar color.
What happens in the atmosphere of Uranus is difficult to appreciate with visible light. 80 percent or more of the planet's mass is found in the liquid nucleus, which is mainly formed by water, methane and ammonia, in addition to other materials of greater density in the deepest part.
Returning to the atmosphere of Uranus, it is covered with fog in the lower layers, with a surface pressure of 1.2 bar. The atmosphere extends to a height of 11,000 kilometers of the planet, maintaining a temperature of -215 degrees Celsius in the upper layers. All this indicates that Uranus does not have important internal heat sources.
As is the case in Jupiter and Saturn, in Uranus you can see areas of a smooth longitudinal banded that includes clear ascending zones and descending dark zones. In these areas winds blow in the direction of rotation that can reach speeds of between 150 and 600 kilometers per hour at mid latitudes.
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