Ages of the Ellipses

The eons of time between the orbital transits of Astra and Meurn. 
The Ellipses mark the passing of the closest approach and near collision of the two planets. Every Ellipsis signals to 2.8 thousand years. The current age is the Sixth Ellipsis (VI E). These are the ages of recorded time on Astra; as part of a method of timekeeping begun by gnome astronomers and scribes. 
An orbital reversal is also thought to have occurred at one time, in which the two planets exchanged orbits. The reversal in theory is calculated to occur again at some point in the future, beyond the ages.