(References to Hean)
Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
X: 74.63 Y: -14.62[e]
- 2596 - Terran Hegemony 
- 2750 - Terran Hegemony 
- 2765 - Terran Hegemony 
- 3025 - Federated Suns 
- 3069 - Word of Blake Protectorate (from August)
- 3070 - Word of Blake Protectorate 
The Word of Blake conquered Hean in a quick campaign during the second week of August 3069 and incorporated it into the Word of Blake Protectorate. In 3077, Federated Suns forces arrived in the system as part of Operation SCOUR. There they faced a previously-unknown SDS that destroyed the FSS Indefatigable and inflicted serious losses on the 15th Arcturan Guards and Fox's Teeth. The Coalition forces withdrew from the system.
- In Dark Age: Republic Worlds (3130), there is a Prefecture IV world listed as Hoan. As Hean is located in the same prefecture and does not show up in that product, the presumption is 'Hoan' is a mis-spelling or a re-naming of 'Hean'.
- Historical: Reunification War, p. 159, "Inner Sphere - 2596"
- Era Report: 2750, p. 37, "Inner Sphere - 2750"
- Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
- Historical: War of 3039, p. 133, "Inner Sphere - 3040"
- Jihad: Final Reckoning, p. 47, "The Jihad In Review"
- Map of the Inner Sphere 3130
- Era Report: 3145, p. 11, "Inner Sphere Map - "
- Era Report: 3145, p. 39, "Inner Sphere Map - "
- Technical Readout: 3025, p. 170
- Jihad Hot Spots: Terra, p. 37
- Jihad: Final Reckoning, p. 57, "The Jihad In Review"