Great X

Great X
Great X 3151.svg
System Information
X:Y Coordinates-184.36 : 287.911[e]
Spectral classM0V[1]
Recharge time201 hours[1]
Recharge station(s)Nadir[1]

The Great X system was home to at least one habitable world, Great X IV, and as of June 3152 was located in the Arc-Royal Liberty Coalition within the Lyran Commonwealth.

System Description[edit]

The Great X system is located near the Beta Regulus II and Deia systems.[2][3] The Great X system consists of a class M0V primary orbited by at least four worlds. During the late thirty-first century a recharge station was in place at the system nadir jump point.[1]

System History[edit]

The Great X system was settled during or shortly before the Age of War and was a member of the Lyran Commonwealth during the Star League era.[4]

Political Affiliation[edit]

Great X IV[edit]

Great X
System position4th[1]
Jump Point distance3.14 days[1]
Moons2 (Why, Zee)[1]
Surface gravity0.98[1]
Atmospheric pressureStandard (Breathable)[1]
Equatorial temperature22°C (Cool Temperate)[1]
Surface water64%[1]
Highest native lifeMammal[1]
History and Culture
Population263,360,000 (3071)[1]
Government and Infrastructure
Noble RulerCount of Great X[1]
HPG ClassB[1]

Great X IV, more commonly known simply as Great X, is the fourth planet in the Great X system and has two moons named Why and Zee.[1]

Planetary History[edit]

Star League[edit]

After the "Birthday Proclamations" of 2755, Great X became the host to a Star League Defense Force garrison.[37]

Clan Invasion[edit]

Great X spent most of its existence as a waystation for Lyran Commonwealth Armed Forces troops on their way to the Draconis Combine front. After the Clan Invasion the Exes (as the inhabitants call themselves) were surprised to find themselves near a front line. Their proximity to the Clan Jade Falcon front made Great X the perfect place for the Lyran Alliance Armed Forces to establish a fortified depot system. The smaller continent, Bastion, received most of this effort, with several new transshipment hubs being built to support troops heading to fight the Falcons.[1]

The Jihad[edit]

In 3070 the Twenty-fifth Arcturan Guards were assigned to garrison Great X.[1] They oversaw the fortification efforts that began that same year. During the early Jihad Great X was bypassed by the Clans and the Word of Blake, but the supply depots that had been constructed were soon emptied and the supplies forwarded to Arc-Royal and other worlds. In December 3070 survivors from both those fronts landed on the world to rebuild. Among them were the Knights of St. Cameron, Clan Wolf-in-Exile's Second Wolf Legion, and the Thorin FTM. Fortunately the Inner Sphere commands were still present in 3071 when Clan Jade Falcon raided the planet.[38][39] The Knights of St. Cameron, Arcturan Guards, and Thorin FTM faced the Jade Falcon's Delta Galaxy.[1]

Dark Age[edit]

By the time of the Blackout, Great X had become one of five worlds whose ownership was disputed between the Lyran Commonwealth and the Jade Falcons, although a decade earlier it had hosted a Lyran garrison.[30] [40] By 3145, the world had been conquered conclusively by the Falcons, although members of the Black Cats mercenary infantry remained behind to wage a partisan war when the Lyrans abandoned the world.[32] [35]

ilClan Era[edit]

After the collapse of Jade Falcon authority throughout their Occupation Zone in 3151, Great X was left with a paramilitary armor Star for a garrison. When Kell Hounds–backed mercenaries mounted an invasion in February 3152 to liberate the world, the Falcon warriors managed to destroy one of the feuding mercenary units before the Black Cats arrived to help the remaining invaders defeat the Falcons.[35] Following this, Great X became a member of the Arc-Royal Liberty Coalition.[36]

Military Deployment[edit]








Map Gallery[edit]

Nearby Systems[edit]

Closest 28 systems (26 within 60 light-years)
Distance in light years, closest systems first:
Deia 17.8 Beta Regulus 20.6 Zanderij 23.3 Yeguas 24.5
Blumenort 25.9 Manx 29.2 Jorvikland 32.7 Santana 32.8
Esteros 33.0 Mkuranga 37.7 Sargasso 38.0 Matteo 39.7
Mississauga 41.1 Zhongshan 41.8 Morges 43.2 Timkovichi 44.1
Atocongo 44.7 Pasig 48.6 Babaeski 50.8 Mahone 52.2
Bountiful Harvest 54.2 Wrociaw 54.4 Chahar 54.6 Biuque 57.8
Ludwigshafen 58.7 Gatineau 58.8 Machida 60.3 Antares 60.3


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 Starter: Fist and Falcon, p. 35, "Great X Planet Profile"
  2. 2.0 2.1 Handbook: Major Periphery States, p. 25, "Rim Worlds Republic At the Fall of the Star League - [2750] Map"
  3. 3.0 3.1 Era Report: 2750, p. 36, "Inner Sphere - [2750] Map"
  4. 4.0 4.1 Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War - [2571] Map"
  5. Handbook: House Steiner, p. 13, "Lyran Commonwealth Founding - [2341] Map"
  6. Historical: Reunification War, p. 159, "Inner Sphere - [2596] Map"
  7. Field Manual: SLDF, p. vii, "Inner Sphere - [2764] Map"
  8. Historical: Liberation of Terra Volume 1, p. 10, "Inner Sphere - 2765"
  9. First Succession War (sourcebook), pp. 24-25, "Inner Sphere - [2786] Map"
  10. Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War - [2822] Map"
  11. Historical: Liberation of Terra Volume 2, p. 122-123, "Inner Sphere - [2822] Map"
  12. First Succession War (sourcebook), pp. 112-113, "Inner Sphere - [2822] Map"
  13. Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War - [2864] Map"
  14. Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War - [3025] Map"
  15. Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War - [3030] Map"
  16. Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 3039 - [3040] Map"
  17. Historical: War of 3039, p. 132, "Inner Sphere - [3040] Map"
  18. Era Report: 3052, p. 11, "Inner Sphere - [3050] Map"
  19. Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion - [3052] Map"
  20. Era Report: 3052, p. 23, "Inner Sphere - [3052] Map"
  21. Era Report: 3062, p. 11, "Inner Sphere - [3057] Map"
  22. Era Report: 3062, p. 29, "Inner Sphere - [3063] Map"
  23. Handbook: House Steiner, p. 70, "Lyran Commonwealth after FedCom Civil War - [3067] Map"
  24. Jihad: Final Reckoning, p. 43, "Inner Sphere - [3067] Map"
  25. Jihad Secrets: The Blake Documents, p. 64, "Inner Sphere - [3075] Map"
  26. Field Report: LAAF, p. 19, "Lyran Alliance Deployment Table - [August 3079]"
  27. Field Report: Clans, p. 26, "Clan Jade Falcon Deployment Map - [August 3079]"
  28. Jihad: Final Reckoning, p. 63, "Inner Sphere - [3081] Map"
  29. Field Manual: 3085, p. vii, "Inner Sphere Map - [October 3085]"
  30. 30.0 30.1 Era Digest: Dark Age, p. 12, "Map of the Inner Sphere - 3130"
  31. Era Report: 3145, p. 10, "Inner Sphere - [3135] Map"
  32. 32.0 32.1 Era Report: 3145, p. 38, "Inner Sphere - [3145] Map"
  33. Field Manual: 3145, p. VI, "Inner Sphere - [3145] Map"
  34. Shattered Fortress, p. 102-103: "Inner Sphere - [3151] Map"
  35. 35.0 35.1 35.2 Tamar Rising, p. 70-71
  36. 36.0 36.1 Tamar Rising, p. 72, "The Hinterlands June 3152" (Map)
  37. 37.0 37.1 Field Manual: SLDF, p. 255: "SLDF - Lyran Commonwealth Military Region Command map"
  38. Jihad Hot Spots: 3076, p. 11, "Jihad Timeline"
  39. Jihad: Final Reckoning, p. 48, "The Jihad In Review"
  40. Field Manual: 3145, p. 119, Andrew Steiner died en route to a visit of a Lyran force on Great X.
  41. ComStar (sourcebook), p. 85, "Com Guards Deployment Table"
  42. Field Manual: ComStar, p. 126, "Com Guards Deployment Table"
  43. Field Report: Clans, p. 15, "Clan Jade Falcon Deployment Status"
  44. Field Manual: 3085, p. 126, "Deployment Table - 3085"
  45. Field Manual: 3145, p. 168, "Gamma Galaxy (Clan Jade Falcon)"