Heliospheres: Cells in a Cosmic Ocean

A heliosphere is the vaguely spherical region of space where the pressure of the solar wind emanating from any given sun is sufficient to create a bubble of sparse plasma and a void in the interstellar medium, eventually terminating at the heliopause.

Are these cells or way too spherical heliospheres?

Strictly speaking — heliosphere refers only to the heliosphere of our sun, and solar wind, when that “wind” is not emanating from our own sun, “Sol”…