[jfimxvqx] Various astronomical planes

Create a sculpture which is just a plane that is parallel to the plane of the equator.  This should be easy.  Add a stick that points out orthogonally toward the north or south celestial pole.

Create similar sculptures that illustrate the plane of the orbit of the moon, plane of the ecliptic, plane of our solar system's orbit through the Milky Way galaxy, plane of the disc of the galaxy.  The planes can have markers pointing to a relevant object: the moon or the center of the orbit.  These need to be kinetic sculptures, because the planes need to continually reorient because of the earth's motion.  The plane of the equator also slowly moves.