Aron
Aron is a wet, highly hospitable planet and the only astronomical object known to harbor intelligent life. As of 2027 Aron is politically divided amongst many countries. It orbits about 0.99 AU away from Hope and is the second largest rocky planet in the Hope system, with a diameter of 12,251km0.1 Lumacahr. It takes roughly 269 days 269 ARON days, it would take 358 EARTH days to orbit for Aron to orbit Hope and said orbit has very slight inclination and eccentricity, and has a day period of 32 hours8.0 octants. Aron is full of diverse environments, from forests to mountains and deserts, anything can be found. Aron's average temperature is 27 degrees celcius, making it the most livable planet in not just the Hope system, but the entire Hope and Fate system as a whole. The planet has an atmosphere composed of 77.9% nitrogen, 20.9% oxygen, and small percentages of other gases, whilst sustaining an atmospheric pressure of 2.16 atm0.134 NeoPSL.
Aron is not just unique in its habitability but also its moons. Aron has two moons, Nyx and Parvus, with a diameter of 3470km18.1 Sytocahr and 2676km14.0 Sytocahr respectively, making them among the largest moons of any non-gas giant planet in the Hope and Fate system.
Nyx
Nyx is a white-grey essentially airless moon with a large amount of cratering and can get, freezing temperatures as low as −170 degrees Celsius90.7 Cahree. It orbits an average of 304,412 kilometers3.1 Lumacahr away from Aron with limited eccentricity. Nyx likely formed during Aron's earlier formation when it slammed into another protoplanet.
Parvus
Parvus, in contrast, is a lacustrine moon. It has a thick atmosphere for its size, around 4.7% the pressure of Aron's. This atmosphere consists mainly of carbon dioxide and chlorine, with some amounts of nitrogen and argon, giving the moon a distinctive green color and an average temperature of -34 degree Celsius-78.1 Cahree. This low temperature is likely due to the moon's highly reflective atmosphere, reflecting up to 45% of incoming light. Although the chlorine dominates the atmosphere's color overall, when seen through the light, and during sunsets, the purple of the argon becomes much more apparent. Unlike Nyx, Parvus is not heavily cratered, showing that the moon does have some forces re-shaping its surface. Parvus also has vast oceans of ammonia and water mixed with small amounts of Copper (II) Chloride, making it an extremely unique moon.