Thank you, folks.

I'd like to re-render this because there are some glaringly nasty parts in it, namely the incorrect placement of Enceladus in the E-Ring, which is pretty much invisible as a moon and only leaves its shadow for the viewer to see, I'll rethink that area as I don't like how it turned out, I should have placed it not so directly in the light. What also confuses the eye even more is the visible moon above Enceladus which makes an appearance around halfway through, making it seem that it might be casting that shadow in contradiction to the lighting but it isn't, its shadow can be seen on the planet surface, right-hand side at the end of the animation.
The rings are also slightly different and not as sharp as I'd like, the original planet I used for this .tgd is called The Grudge and is shared here somewhere, the rings should have been left like they were there.
And the Cassini jaggies that I mentioned before could be be very much improved but to do that I'll need to raise AA to a higher minimum sample rate and this will drastically impact render times since RTA is also used to get smooth rings(the minimum setting I could get away with here is; cloud quality=15 at 925 samples due to the extreme thinness of the way I've used the layer), raising AA will result in more sampling of both objects and clouds and will take an age. I don't have the knowledge of how to render out a multi-pass and comp' it together into an animation right now, although, that would be the logical way to go. I must do some reading and experimenting...
At the settings I had for this render I was on around 10 minutes per frame over my two little cores, the whole 30 seconds took me around 120 hours to render so it will be a while before I can re-render.
If there are any offers to render it from any of you guys running beast-machines I'd happily send the .tgd file and Cassini object(a NASA model, freely distributed and shareable by the public). On a half decent computer this scene would take two or three minutes per frame at the required settings to make it clean, I'd guess.
Anyway, cheers!