Svarog

Adrasteia
 * Although a small planetary body, Adrasteia has still not cooled off sufficiently to be free of tectonic plate activity or volcanic eruptions. Approximately one-half of its surface area is covered in a warm ocean, heated through solar emission due to the planet being on the very near edge of the habitable zone for its parent star.

Viltri
 * The skies of Adrasteia are permanently covered in a very misty clag of water vapour and cloud caused by the heating of the oceans. So much so, that the typical visibility is no more than 100 metres (or yards) at any given time of year, and frequently a lot less.
 * The world of Viltri is an icy place. Its surface is frozen solid water below which a layer of liquid water exists before giving way to solid silicate based rock and a nickel-iron core. The solid ice surface is pockmarked with gravitational stress features and the remnants of impact craters that have been back-filled by water seeping up to freeze over any hole punched in the crust.