Sollus Minor is not really a planet, but more of a sun. Sollus Minor is an example of an occourence so far found nowhere else in the galaxy and is believed to be a testament of the Almighty One's power.
Sollus Minor is a miniature sun about the size of Ulvania that orbits Sol past the Asteroid Belt. It is complete with 8 moons: Serrus , Sipelus , Fulvia , Amorina , Simatra , Ferrus , Remta and Boccus . The physics behind the phenomenon are currently unknown as technology has not advanced enough to send the neccessary equipment into space.
In many cultures, Sollus Minor is believed to be Sol's child.