The El-Adrel system is a neutral star system located halfway between the United Federation of Planets and the Tamarian space. It has at least four planets, the fourth of which is class M.
In 2368, a Tamarian starship commanded by Captain Dathon chose this system to attempt communication with the Federation. He so chose the planet because a creature on the fourth planet offered a parallel with a story in their mythology. The USS Enterprise-D was sent to answer their signal. (TNG: "Darmok")
- El-Adrel (primary)
- El-Adrel I
- El-Adrel II
- El-Adrel III
- El-Adrel IV