I've been drifting about working on some of the content design items recently. Tonight I got busy and after fixing a few bugs I created a screen to help me track IAPs and then created a routine to randomly generate comets for a given star system. Below is a test run for one corner of the Marvin(1) system. I've got a small bug on the Details section in this screenshot, but it shows results nicely.
I'll probably tweak the code a bit so that two comets won't show up directly adjacent to one another.
Comets will be places to harvest Monopoles and possibly contain anomalies and other adventure nodes. Comets will not display on the screen until you've discovered them by performing a scan within one square of a comet, or you purchase a copy of a scan someone else has done.