Ziva

Nirvana Nova Xanadu Borr
 * Nirvana has a trace atmosphere of xenon and krypton. The surface is a mix of water ice and iron oxides, with cryovolcanic plumes of potassium concentrated around the equatorial ridge.
 * Nova is a very dark, basaltic planet with few reflective clouds and high proportions of methane and carbon dioxide in its atmosphere. As the desert's edge greens, the planet's albedo will rise, and its temperature will fall accordingly.
 * Xanadu's atmosphere is composed of methane and argon, while the planet's frozen surface is largely potassium with deposits of calcium. Its location in the deep cold of the outer system and its lack of valuable resources leave little to recommend it.
 * Borr is a huge hydrogen-helium gas giant. Its striking coloration is caused by the light of ionized hydrogen filtering through an upper cloud deck of sodium. The source of the ionization has not yet been confirmed, but Borr's mass (equal to six Jupiters) and high temperature suggest it may be a small "brown dwarf", a large gas giant that gained nearly enough mass to ignite into a small star.