During that period, the research team watched while the Antarctic region was dark in the winter and the Arctic region that shine with the approaching summer. By monitoring the planet at four different points in time, years away, they can see how the gradual transformation of the seasons affected the planet. The upper row explains how the planet appeared when watching it with a visible light only.
The second row from the top is a false color that depends on visual notes and lighting close to infrared. Green refers to less methane in the atmosphere of blue, and Al -Ahmar indicates the absence of methane. Low levels of methane in the atmosphere indicate the columns (which are remembered, on both sides of the planet instead of above and bottom) indicates that there is a small seasonal contrast in methane levels. In the left image on this row, the green pole is transmitted to the dark. In the other three images, the lower green area of the Arctic can be seen in appearing. (The fourth grade shows the same lack of methane contrast, but without coloring.)
But what about the third grade? This shows the abundance of aerosols, using visual lighting images and infrared that have not been colored. Light areas are cloudy with a high abundance of aerosol, dark areas with low aerosol abundance. What he finds in these pictures is that there is He is Seasonal contrast. The Arctic region was clear at the beginning of spring (in 2002), but it became cloudy with the progress of summer (2012 to 2022). On the contrary, the Antarctica area appears to have been cleared with the progress of the winter. The team believes that these seasonal changes are evidence that sunlight changes the levels of fog of atmosphere on this planet.
Although the results of this study covers a 20 -year period, this still reflects one period of seasonal change in Uranus atmosphere. The research team will continue to monitor Uranus as the polar areas move to the news seasons, to collect more data.
This story was originally appeared on Wireless Japan It was translated from Japanese.
