Navigational data:
M25 is 18 AU from the star (2,700 milliom Km). At 1g standard acceleration, it takes 8 days to reach the M25 limit.
There are 9 planets.
The main inhabited world is Dolha III, know locally as Centissimo.
The continental scematic, showing principle cities: (click on the map for a full size version of the image)
The planetary capital is Hernando City, and this is where much of the administrative infrastructure of the Earth Empire for Quadrant 7 is located (including the Imperial Governor's Residence).