Mehri and Tarsi

The Wanderers, Mehri and Tarsi, are two unusually bright stars that wander relative to the seasonal progression of stars. Astrologers have been unable to account for their movements in any celestial model, and their movements have dramatic implications on astrological divination. In reality, they are stars forming a trinary star system with the sun, and have complex orbital patterns that defy any simple astrological model.

Astrological Implications

Mehri and Tarsi have been named based on their impact on astrological readings. Mehri holds power over all things related to love, from the most passionate of romance to the simple and enduring loves of friend and family. Tarsi holds dominion over fear and all that it can lead to. Together they represent the main forces of chaos and uncertainty in the world, and the complex interplay with the Houses and Planets are fundamental to any attempt at divination. Additionally, the unpredictability introduced by the Wanderers makes long term divination all but impossible

Orbital Mechanics

The Wanderers orbit very far out, far enough that they appear as extremely bright stars - bright enough to be seen even during the day, as long as they aren't too near the sun, acting in a complex 3 body orbit with the Sun. As each are comparable in size, their orbit is complex and difficult to model. The outer planets also exhibit complex behavior due to the influence of the Wanderers - these two stars are close enough to have a gravitational influence on them, sometimes speeding them up or slowing them down, which further hinders astrologers attempts to understand the system.
Each of the wanderers has its own planetary system, though even the largest of their planets can only be seen in absolutely ideal conditions. These are known as the "Ethereal Planets", and are believed to appear when, somewhere in the world, significant events involving love or fear occur.

Alternative Name(s)

The Wanderers, or the Star of Love and the Star of Fear

Type

Star