This was revealled by some unusual allignments on the orbits of several Kuiper Belt objects.
For the art, the challenge was to show something clearly, while giving an impression of almost total darkness. Here’s what I came up with:
The rich star background is there to imply a very long exposure.
I gave the planet a ring. While the material that far out is sparse, the planets gravity would be completely dominant, while the influence of the Sun would be tiny. For the same reason, I would expect it to have many small moon’s, (not shown).
Pioneer 11 was the first probe to reach Jupiter and Saturn. It is not often remembered, I think because of Voyager 1 and 2 followed on relatively quickly, and these probes delivered much superior imagery.
But Pioneer 11 was important, not least because it established if it would be safe to send the voyagers very close to the giant planets – the amount of radiation and debris near them was not clear before the encounters.