Hi,
it may be useful to indicate when ecliptic and celestial equators intersect since those signify equinoxes. Possibly very useful to indicate when the planet is at a solstice position. A ghost of earth can be turned on or off with a selection, and when turned on, and when earth passes through the ghost, an animation can highlight the event. The animation could be in the shape of the intersecting equator and ecliptic getting thicker and more bright at that particular moment.
Thanks
