Looks like it was, as I did have that auto-aim (which is what I meant by the "orbital aim", yeah).
The issue with the auto-aim is that it can't really hit the center at higher orbital speeds and the larger moons!
The ObjectDB thing, without digging into documentation, probably means that you're 'discarding' objects, but still maintaining a reference to them, so that godot's garbage collector can't remove it. Just worth going through things!
If you try a web build, keep the web console open, a lot of things will show up in it by default!
And I'm looking forward to how you change the levels about!