Followed by a moon shadow: 1989 Neptune images from Voyager 2 reviewed 20 years later

[CLICK ON IMAGE FOR HIGH RESOLUTION,  NASA, JPL – Processed Image Copyright: Ted Stryk]

neptunemoonshadowsDespina is a tiny moon of Neptune … discovered in 1989, in images from the Voyager 2 spacecraft taken during its encounter with the solar system’s most distant gas giant planet.
But looking through the Voyager 2 data 20 years later, amateur image processor and philosophy professor Ted Stryk discovered something no one had recognized before — images that show the shadow of Despina in transit across Neptune’s blue cloud tops.
His composite view of Despina and its shadow is composed of four archival frames taken on August 24, 1989, separated by nine minutes.


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