H-class planet

An H-class planet is described as Geo-Thermal.

Planets of this class are usually found in a star's "habitable zone" or "cold zone". They are typically 1,000 to 10,000 kilometers in diameter. They have partially molten surfaces and atmospheres that contain many hydrogen compounds. They cool becoming Class L.

Selected H-class Planets

• Alpha Centauri 5
• Gothos
• T'khut (40 Eridani 2)