OSB Fled here to Mars
The Planet the OSB fled to after Lord Greylancer's victory in destorying the OSB Moon Base. Apparently they must have another base here used to regroup.
Particle Space Cannon[]
Some time after 7000 AD, Lawrence Valcua sets up his OSB planet destroying Particle Space Cannon here.
In around 10,000 years before Vampire Hunter D there is a colony here where a human named Cecile contacts D to take on the task of vampire hunting which may even kick off the series in Vampire Hunter D: Message from Mars.