Five <i><a href="https://en.wikipedia.org/wiki/Voyager_2" class="extiw" title="w:Voyager 2">Voyager 2</a></i> images were used to produce a polar projection of <a href="https://en.wikipedia.org/wiki/Neptune" class="extiw" title="w:Neptune">Neptune</a>'s southern hemisphere. The images were taken over one Neptunian day (about 18 hours). The image is centered at the south pole and extends to about 15 degrees north latitude. The <a href="https://en.wikipedia.org/wiki/Great_Dark_Spot" class="extiw" title="w:Great Dark Spot">Great Dark Spot</a> and its trailing bright clouds can be seen at 25 degrees south latitude, about 28,000 km from the pole. This image was produced using clear, orange, and green filters at a distance of about 30 million miles.
NASA/JPL
<a rel="nofollow" class="external free" href="http://nssdc.gsfc.nasa.gov/imgcat/higher_res/voyager/neptune/vg2_p34628.tiff">http://nssdc.gsfc.nasa.gov/imgcat/higher_res/voyager/neptune/vg2_p34628.tiff</a>