Chayyim (RS 8409-1357-8-7182402-1082 A4 in 0.9.7.4 Beta Patch 8) is a warm Earth-like E-Class planet orbiting the larger star of its binary solar system, Ariona A, near the Carina Nebula. It the homeworld the advanced space-faring civilization, the Olumide. It is suspected the First Civilization made contact with this planet during ancient times.
Chayyim is slightly smaller than Earth with a diameter of 11,288.47 kilometers (88.59% the diameter of Earth). However, standing at 1.0009 G's, gravity at sea level is nearly identical to Earth. The atmospheric pressure at sea level is 1.69 times Earth's.
Being tidally locked to Ariona A, the planet has no significant axial tilt. With no seasons, Chayyim has a mean temperature of 97.67 degrees Celsius (207.8 degrees Fahrenheit). Chayyim's day lasts 71.05 Earth days, the same length as its orbital period.
Chayyim's calculated ESI is 0.809.
A typical hurricane exists over the day side of Chayyim. However, this hurricane is much less weaker than average storms. Research suggests this storm was much more powerful thousands of years ago, perhaps to the point where it covered nearly the entire day side of the planet. For unknown reasons, the hurricane has since gained a small and asymmetrical shape. The change appears to be the result of the early stages of an out-of-control but temporary warming of Chayyim, almost like a reverse Ice Age. It is possible that as the storm shrunk in size, less sunlight energy was reflected off of the clouds, thus letting the atmosphere trap more heat than it would otherwise. This means, however, once the planet has warmed to a certain temperature, water will begin to evaporate and create more clouds, reflect more light, cool the planet, and thus stabilize the climate.
Currently, the irregular shape of the storm makes it difficult to forecast due to the creation of complex weather patterns across the day side of Chayyim. These weather patterns can appear and collapse in only a few hours, hence their unpredictability. But, during their lives, these weather patterns create large flows of warm air, and some of this air reach the day-night terminator of the planet, where their heat has made it impossible for ice caps to form. Since these weather patterns are largely powered by Ariona A's energy, the closer to the day-night terminator these patterns spawn the less energetic they become. Thus, on the night side of the planet, the climate is at most times very regular and calm. Clouds do exist on the night sky, but very rarely do they yield storms.
With no axial tilt, there are no major seasons, although the eccentricity of Chayyim's orbit causes a minor deviation of a couple degrees over its year.
Chayyim and the Ariona system formed only 21 million years after Sol formed. There is no evidence, however, suggesting a large impact hit Chayyim during its formation, such as the one with Earth that created Luna, hence why no large moon orbits the planet.
Life appeared on Chayyim at about 3.1 BCE in undersea regions active with geological activity. At regions where continents pulled themselves apart, organic chemicals and materials were formed, mixed, and led to the evolution of the first microbes. These cells reproduced slowly but lived long lives often in a single location, usually near an active lava flow or energetic spire. Multicellular life appeared around 1.2 billion years ago, around twice as early as multicellular life appeared on Earth.
The Olumide civilization began around 180 million BCE. For the next few million years, the Olumide spread throughout most of Chayyim's oceans, and new underwater settlements were built along shorelines.
Around 135 million BCE, an advanced civilization discovered Chayyim and made contact with the Olumide. From many accounts during this time, it is possible this was the First Civilization.
For reasons unknown, the First Civilization forced a large portion of the Olumide to leave their oceans and live on land. This was possible due to heavy genetic by modifications the Olumide underwent. Once on land, the Olumide were forced to undergo forced labor to establish land colonies. Evidence suggests this was done for the profit of the First Civilization. The Olumide were still hunter-gatherers, but nevertheless small governments similar to city-states began to appear across the shorelines of Chayyim. It is unlikely, though, that these governments were controlled by the Olumide alone; in fact, it is much more likely that, due to the Olumide's young age as a civilization, the First Civilization would have had to control nearly all aspects of the governments for them to run effectively.
This era lasted for around three million years. Around 132 million BCE, poor the living quarters provided by the First Civilization and their mistakes in genetic engineering to led to a massive plague ravaging the land colonies of Chayyim. This plague was devastating to societies and individuals alike and killed almost all those who lived outside of the oceans. Around this time, too, the First Civilization abandoned Chayyim entirely, perhaps to avoid becoming infected themselves. Now without the strict guidance and assistance of the First Civilization, as well as the plague wiping out millions of years of history and culture, the land colonies rapidly fell apart, and the Olumide returned to being a primitive civilization of hunter-gatherers. Those who lived in Chayyim's oceans were mostly untouched, and there they would continue to strive for millions of years.
Around 3200 BCE, evolution gave once again the Olumide the ability to explore the surface. They created permanent settlements and small governments to rule them. Also during this time, Chayyim's hurricane went through a short period of weakening. Less of Chayyim was covered with vicious storms, and the Olumide were able to explore more of the planet with their current technology.
Humanity discovered Chayyim in 3249 CE during a mission exploring the Eta Carina nebula. By this time, the Olumide had colonized multiple worlds in their solar system and had started research in interstellar travel.