In fact, the moons of Kordea become a central element in Book 2, soon to come out. The cover below actually borrows the moon Callisto, one of the moons of Jupiter. I will by testing out different moons for the cover of the Witches' Stones Book 2, so this gives me the opportunity to do a mini-tour of some of the major moons of our solar system.
Here are a few facts about Callisto, courtesy of Wiki:
- It's the third largest moon in the solar system and the second in Jupitier's system.
- It is one of the original moons discovered by Gallileo (thus, referred to a a Gallilean moon).
- It is the farthest from Jupiter of the four Galilean moons. It is easy to find in a smaller telescope. The distance from Jupiter means it has lower radiation levels than the other moons (related to Jupiter's magnetic field), and therefore might make a good base for human exploration.
- It is mostly rock and ice, and it may have a subsurface ocean (100 km or so deep). There might be life in that ocean, though more hope is held out for its neighbor Europa in that regard. The presence of a deep ocean is inferred from its interactions with Jupiter's magnetic field, best explained by a highly conductive fluid at depth.
- It is heavily cratered, and the surface is old, with no signs of tectonic activity.
- The shiny bits are probably frost. The dark parts include organic (carbon) compounds.
- It is tidally locked with Jupiter, like our moon is with Earth. That means the same side always faces the planet.
- Its albedo is about 20% (about 20% of the light falling on it is reflected).