The orbits of all the major planets, including Earth's, lie well within the heliopause.
Astronomers have various theories about what happens beyond the heliopause, at such a far distance from the sun that solar wind doesn't affect anything.
Inside the heliopause is the heliosphere, and everything outside of the heliopause is considered interstellar space.2. Etymology: The word heliopause is rooted in the Greek word for "sun," helios, and the Latin pausa, "a halt, a stop, or a cessation."
2. An individual who finds much pleasure in sunny weather: Toby's next-door neighbor was a heliophile who used every moment to be outside when the sun was out.
2. In medicine, anyone who is abnormally sensitive to or has an exaggerated fear of the rays of the sun.