Ships in orbit cannot fire their energy weapons due to atmosphere as if they were PDCs. I'm not sure if this is about whether the ship firing or the target ship as I just created two fleets in orbit of Earth and tried to have them fire at each other.
Atmospheric retention is still wonky at least for the moons (didn't check the dwarf planets). There is no screenshot due to gravity/planet type and greenhouse factor being too far away from each other to fit on a screen.
Planets with too low gravity cannot retain atmosphere which is represented by having a greenhouse factor set permanently to 0 (at least in Quasar, don't know about Aurora). The way it works in Aurora the game checks for gravity, if ti's less than 0.1 it cannot have an atmosphere. Quasar however seems to check for body type, at least in the case of the moons. Those are some of the moons that have been generated in one of the systems:
Large moon, gravity 0.11, greenhouse factor=0
Small terrestrial moon, gravity 0.086, greenhouse factor=1
Small terrestrial moon, gravity 0.16, greenhouse factor=1
Large moon, gravity 0.15, greenhouse factor=0
Overall it seems that rather than checking for gravity, Quasar simply gives greenhouse factor=0 for any moon that isn't classified as small terrestrial or terrestrial irrespective of the actual gravity.
Thank you for your time.