A planetarium is a place where people can go to learn about astronomy and observe celestial objects such as stars, planets, and galaxies through a specialized projection system on a domed ceiling. It is a facility designed to educate and inspire visitors about the wonders of the universe.
All planetrorium softwares or sites that I have came across so far invariably show the observer-based sky chart from earth.
Is there any method or software or site showing 3D video of heliocentric movements of planets/ all heavenly bodies, as seen by an "external" observer (not earth-based)...