Saturn's moon Dione as seen from Voyager 1 on November 1980.
NASA
1980-11-12
Modification original file: <a href="//commons.wikimedia.org/wiki/File:Saturn_System_Montage_-_GPN-2000-000439.jpg" title="File:Saturn System Montage - GPN-2000-000439.jpg">Saturn System Montage - GPN-2000-000439.jpg</a>