Elkalon

Elkalon is the second planet from Psidefor and the fourth largest planet overall. The planet has a year about 241 Earth Days, 15 Hours, 49 Minutes, and 15 seconds long, with a Solar day of 29 hours, 8 minutes, and 42 seconds. Elkalon has a thick atmosphere and is the only planet known to have oceans. It has two moons, Aklass and Uhal.

The atmosphere is largely composed of Nitrogen, 81.32%, with its other main component being Oxygen, 17.12%. Other gases include Argon (0.90%) and the greenhouse gas Carbon Dioxide (0.12%). Additionally, flammable ethanol vapors and greenhouse gas water vapors have variable concentrations each hovering at around 0.27% at any given time. These contribute greatly to humidity as well as to various natural cycles on Elkalon.

The ocean is 51% water by mass, just slightly over half, while ethanol makes up about 44% and salts make up around 5%, with Sodium Chloride being the dominant salt at around 4.2% concentration. These oceans have a light blue shade due to the reflection of blue light by water and experience strong tides related to influence of Psidefor and Aklass.

History
See also: Timeline of Elkalon

Elkalon formed 5086 million Earth years ago, shortly after the formation of Psidefor, from rocky material in Psidefor's Accretion Disc. It suffered at least two impacts from other planets in its early history: Silio and Alun, leading to the formation of Aklass. At this time, Elkalon was extremely hot, with a molten surface.

However, over the course of the next several million years, Elkalon's outer layers solidified into crust. A primitive atmosphere and ocean formed from volcanic activity and outgassing. This early atmosphere largely consisted of nitrogen and carbon dioxide, while the ocean was almost entirely water. Due to the low luminosity of Psidefor early in its history, Elkalon was covered by a thick planetary ice sheet. As the star heated up, this ice sheet melted away. Around the same time, the earliest life evolved on the planet.

The evolution and proliferation of fermenting lifeforms on Elkalon led to the alcoholizaition of the oceans to a point similar to that which exists today. Several million years later, oxygen accumulated in the atmosphere as a result of several organisms' metabolism of carbon dioxide. This resulted in the atmosphere taking on its modern form.