1 Alpha-1

Overview
1 Alpha-1 (commonly known as just Alpha-1) is the first moon in categorization of moons of Abahot. It has a diameter of 1,227 miles (1,975 km) at thinnest and 1,232 miles (1,983 km) at maximum. It has no life but would be a hospitable place for life to form, owing to the organic material dissolved in the ocean at a concentration of roughly 1% in the upper layer, increasing down to 6% at the liquid-supercritical fluid barrier. Below this division, no life is possible because of supercritical water's properties.

History
Alpha-1 was most likely created during the black hole swing. It was originally molten, and cooled rapidly. It had an atmosphere of water vapor, and it condensed into great oceans. These oceans very gradually cooled, until they froze over completely.

Composition
Alpha-1 is frozen at the surface, but it is warm in the interior. There is an ice layer, which insulates the water below, about 2 miles (3 km) thick. The water gets hotter in a layer, about 50 miles (85 km) thick, eventually becoming supercritical (in a layer 10 miles, or 17 km thick), and transitioning back to extremely high-pressure ice lower down (25 miles, or 40 km thick) surrounding a rock and iron core 1143 miles (1840 km) thick.

Water Jets
The ice in the inner ice shell is dense at cold temperatures, but also extremely hot, and so it is unstable. Sometimes, a chunk will break off and start rising. Once it gets high enough up, it "melts", expanding to become a supercritical fluid, and rising up rapidly, at speeds of about 100 meters/second. At this rate, it keeps shooting up, at a temperature of about 500oF (260oC), and so penetrates the ice layer after about 23 minutes, and breaking the surface 30 seconds after that.