Dynamics - Dynamics Zonal wind speeds on Uranus. Shaded...

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Dynamics Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpart. The red curve is a symmetrical fit to the data. Uranus has a relatively bland appearance, lacking broad colorful bands and large clouds prevalent on Jupiter and Saturn. [14] [59] No discrete features were observed in Uranus's atmosphere before 1986. [10] The most conspicuous features on Uranus observed by Voyager 2 were the dark low latitude region between −40° and −20° and bright southern polar cap. [59] The northern boundary of the cap was located at about −45° of latitude. The brightest zonal band was located near the edge of the cap at −50° to −45° and was then called a polar collar. [77] The southern polar cap, which existed at the time of the solstice in 1986, faded away in 1990s. [78] After the equinox in 2007, the southern polar collar started to fade away as well, while the northern polar collar located at 45° to 50° latitude (first appeared in 2007) have grown more conspicuous since then. [79]
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Dynamics - Dynamics Zonal wind speeds on Uranus. Shaded...

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