Ark Galactapedia

Tethtām (Hyoton V) is the farthest planet from the sun of the Hyoton system, Xi'an Empire (SaoXy'an). An orange and cream-colored gas giant, it has an atmosphere of hydrogen and helium and is the main source of fuel in Hyoton. It symbolized emptiness and time in ancient Xi'an mythology, and came to be associated with Li'tova after the philosophy was encoded into Imperial Law at the beginning of the First Imperial Age. Tethtām is orbited by a Li'tova temple that was made with a large viewport that always faces the planet.