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At Uranus, with the arrival of summer, a lighter and more gigantic polar north cap became bright, while a large, dark storm was visible on Neptune.
At Uranus, with the arrival of summer, a brighter and more gigantic north polar cap became lighter and a big, dark storm was visible at Neptune, according to N + 1 of the link
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Uranus and Neptune are among the most ignorant planets in the solar system and a single interplanetary station Voyager 2. – studied them closely , all other observations of these planets are made from the Earth or an orbit near the Earth.The processes in the atmosphere of the giants, especially the formation and evolution of great hurricanes, and their interaction with the environmental, seasonal changes in the atmosphere, which can last from decades to decades, are of particular interest to scientists.
The telescope received new images as part of the program. OPAL (Outer Planet Atmosphères Héritage), during which annual observations of these planets are organized. The North Pole of Uranus shows a bright, giant white zone called "polar ice cap", which is probably a long-term storm that could have formed due to seasonal changes in atmospheric flux. When Voyager 2 flew over Uranus in 1986, this structure was less noticeable and there was winter on the planet while we are now in the middle of the summer period.
The image of Neptune, obtained by Hubble, shows the dark anticyclone that appeared in the summer in the southern hemisphere of the planet is the fourth highest anticyclone observed by the telescope.
Two other similar atmospheric formations were discovered by the Voyager 2 spacecraft in 1989, when the Great Dark Spot, whose diameter was only three times smaller, was opened. Hurricane Jupiter Grand Red Square.
Telescope Earlier followed the fate of one of these storms. Near the dark storm, bright white clouds are visible, formed by raising the airflow caused by the vortex, resulting in the formation of iced methane crystals.
Similar clouds are forming on the Earth, above the mountains. It is not part of a long, thin cloud visible to the left of a dark storm.
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