Ysau is a Cool Desert orbiting Archas A. The planet is tidally locked, causing a massive hurricane.

Atmosphere and Weather

The atmosphere on Ysau is almost completely Carbon Dioxide. The atmosphere is the reason for the pink color of the planet. Because the planet is tidally locked, a large hurricane is constantly on the hot side.


The surface of Ysau has a few very large craters. The cold side is mostly frozen carbon dioxide ice. The middle is home to some liquid carbon dioxide, causing some very small lakes


Ysau has 5 dwarf moons, all small cool asteroids. 4 of the moons orbit in a tight area, while one orbits in a polar alignment, suggesting a recently captured asteroid.

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