Editing a Planet into the SkySphere?

Alright so, long story short, I have an image of Jupiter I want to add into the skysphere.
It doesn’t have to move, it just has to sit there somewhere in front of the Stars Texture and behind the Clouds Textures (if it does move that’s fine too, at this point I kinda just want it in there and whatever’s easiest is fine). In the Skysphere material M_Sky_Panning_Clouds2, I notice the sun mechanic utilizes a sphere and a set color.

I was wondering if there was a way to create something less complicated then what the sun does, essentially adding an additional ‘sun’ that doesn’t emit light and uses a texture instead of a color. But I’m not sure how to hook that up into the M_Sky… material.

Anyone know how to go about this in the simplest way possible? Thank you very much for your time.