File:PIA00047 Neptune - Changes in Great Dark Spot.jpg

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PIA00047_Neptune_-_Changes_in_Great_Dark_Spot.jpg ‎(430 × 465 pixels, file size: 25 KB, MIME type: image/jpeg)

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English: The bright cirrus-like clouds of Neptune change rapidly, often forming and dissipating over periods of several to tens of hours. In this sequence spanning two rotations of Neptune (about 36 hours) Voyager 2 observed cloud evolution in the region around the Great Dark Spot (GDS) at an effective resolution of about 100 kilometers (62 miles) per pixel. The surprisingly rapid changes which occur over the 18 hours separating each panel shows that in this region Neptune's weather is perhaps as dynamic and variable as that of the Earth. However, the scale is immense by our standards the Earth and the GDS are of similar size and in Neptune's frigid atmosphere, where temperatures are as low as 55 degrees Kelvin (360 F), the cirrus clouds are composed of frozen methane rather than Earth's crystals of water ice.
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Voyager 2, PIA00047

Author NASA/JPL, Voyager 2

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current10:38, 16 August 2010Thumbnail for version as of 10:38, 16 August 2010430 × 465 (25 KB)Paoloo31 (talk | contribs){{Information |Description={{fr|1=nasa gtsn}} |Source=nasa |Author=NASA |Date= |Permission= |other_versions= }}

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