orientation of disks

60 degrees is not my idea of perpendicular. It's fixed in space because there are no forces to change it. If a process is random, it is meaningless to ask how any particular result of the random process happened. -|Tom|-

OK, so you are saying the orientation of planetary disk is fixed in 3D space at whatever angle in now has and the orientation relationship between it and the galatic disk changes due to the rotational motion of it around the galatic center? The reason for this is to is not subjected to any force that changes the position-or as per Newton's third.

Right. -|Tom|-

Reading some of my posts here its clear editing would useful. Anyway, the absolute nature of the centeral fact here(the fixed position of the planetary disk)must be easy to confirm by looking at other objects in space outside the solar system. Has this been done? I'm not doubting the correctness of this because I like the result and thats a bit of a problem.

Yes. -|Tom|-

I'll be on travel for a week, with uncertain internet access.