Somebody said:

Figure 7. The tail of Mira in UV radiation, courtesy NASA.

 

We should suspect that the radius will be large, since the centrifugal force of relativistic velocities will be enormous at a tight radius. But this gives us a better idea of how large;€” it's a star that is as big around as our solar system, though it's a toroid instead of a sphere.

Regarding the tail of Mira, does it consist of dust? If so, does the dust contain iron? Or what kinds of molecules and ions?

 

Regarding the Mira toroid/tokamak, do you suppose it travels parallel or perpendicular to its axis?*¹⁸⁴⁸⁷