The Markon system, found in the Core Worlds region of the galaxy, was a star system. Within this system was a planet called Markon IV.
- " Twinkle, Twinkle Little Star, How I Wonder Where We Are " — Voyages SF 13 (Unlicensed) (referred to as both Markon IV system and Markon system)
- The Essential Atlas
- Star Wars: The Essential Atlas Online Companion on StarWars.com (article) (backup link)