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Lyons neighbouring systems
Lyons neighbouring systems
System Information
X:Y Coordinates -23.01 : 38.727[e]
Spectral class F8V[1]
Planets 4[1]

Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)

Orbital view
Orbital view
System position 2[1]
Jump point
12 days[1]
Moons 1 (Bier)[1]
Surface gravity 0.99[1]
Atmospheric pressure Standard (Breathable)[1]
Equatorial temperature 46°C[1]
Surface water 77%[1]
Highest native life Reptiles[1]
Reference Year 3130[1]
Ruler Nancy Carter (Governor)[1]
Ulga Jarmann (Planetary Legate)[1]
Capital Clovis' Point [1]
Population 957,000,000[1]

Political Affiliation[edit]

Era Specific Data[edit]


Planetary History[edit]

Lyons was settled early in humanity's expansion across the stars. It featured a warm climate and arable land that readily supported crops imported from Terra. Lyons greatest claim to fame was the large number of volcanoes and volcanic activity that rocked the surface periodically. To avoid the problems presented by volcanoes, the inhabitants originally settled on the edges of the Fedkirk continent, leaving the center of the continent largely abandoned. The other continents (Glastone, Leuben, and Pairse) were settled the same way. Shortly after the immigrants arrived, the local mining industry produced enough for other industries to function. This let Lyons achieve self-sufficiency in short order.[1]

Early History[edit]

Lyons was one of the worlds that was abandoned by the Terran Alliance following the Outer Reaches Rebellion and the Demarcation Declaration of 2242.[2] Having become independent as a result of the Demarcation Declaration, Lyons was subsequently added to the resurgent Terran Hegemony; whilst some worlds joined the Hegemony during its early years as a result of diplomatic and trade incentives, many more were conquered in "campaigns of persuasion" launched by Director-General James McKenna, the first of which began in 2316 and ended with the capture of Towne in 2317. Lyons was one of the worlds added to the Hegemony during or around the time of this first military campaign.[40][2][41] By the end of the Reunification War Lyons had become one of the worlds within the Lone Star Province of the Terran Hegemony.[6]

Succession Wars[edit]

In 2966, the Draconis Combine conducted a raid on Lyons. However, a Lyran aerospace force was hidden on Lyon's moon, Bier. Once the Kuritan forces were committed, the Steiner forces dove through the attacking force causing tremendous damage and chaos. Only one Kuritan ship escaped the attack.[42]

In 3025, Lyons was the primary base for the 12th Star Guards, a mercenary unit with a lineage dating to the collapse of the Star League. Two regiments were based on the planet - the 3rd Regiment, commanded by Hauptmann-General Mitch DeChavilier, and the 7th Regiment, commanded by Colonel Thomas Scovy.

During the Fourth Succession War, the 12th Star Guards had moved off-world, participating in attacks on Kurita space and in 3029, the Kell Hounds mercenary unit, commanded by Colonel Morgan Kell established a base there, including the town of New Freedom. The town was home to numerous members of the underground Heimdall movement. The town was destroyed in a raid by the 3rd Dieron Regulars and most of the population was murdered by the Kuritan unit. The Kell Hounds returned to New Freedom and completely routed the Kurita forces, returning the planet to relative peace.


Lyons was captured by the Word of Blake during the Jihad. In September 3076, however, a Clan Ghost Bear/Clan Snow Raven task force liberated the world,[43][44] with the Ghost Bear's Xi Galaxy conducting the ground campaign.[45] The Clan troops in November, left shortly after liberating the world, leaving two Inner Sphere units to help rebuild.[44][46]

Unfortunately tensions between the 6th Pesht Regulars and 7th Donegal Guards boiled over, and the traditional enemies fought with each other, inflicting damage on both units. Eventually General Belle Lee arrived on the world and transferred both the House units off-world. The 31st Battalion of the ComGuard Sixth Army was transferred in to replace them.[44][46][39]

The clashes between the 7th Donegal Guards and 6th Pesht Regulars began with the Donegal Guards launching an air raid followed by an airborne infantry assault on the primary base used by the Pesht Regulars on the 12th of December 3076; the bulk of the Pesht Regulars were conducting war games on the Alterland continent, and the Donegal Guards' forces took less than an hour to capture the facility. The Pesht Regulars retaliated the next day, assaulting the Donegal Guards forces at the Federated-Boeing International DropPort, the beginning of a series of skirmishes throughout the day. Ernestine Chiery, an aide to Governor Michael Bloomsworth, confirmed later the same day that the planetary authorities had requested assistance from the allied coalition command to try and defuse the situation even as they evacuated civilians from the effected areas. General Lee and her forces arrived in early January, and by the 5th of January had stopped the fratricidal combat, removed both units from their posts and replaced them with the ComGuard forces.[39]

Dark Age[edit]

A false-flag operation run by the RAF was used to deal with a Republic-loyal militia that in actuality was run by a separatist faction.[47]

Military Deployment[edit]





  • Twelfth Star Guards[51]
  • Third Regiment[51]
  • Seventh Regiment[51]









  • Thirty-first Battalion[39]


Nearby Systems[edit]

Systems within 60 light-years (distance in light years)
Closest systems first:
Ko 10.1 Nusakan 16.3 Alkalurops 19.4 Atria 19.9
Rocky 20.3 Zollikofen 25.3 Imbros III 25.6 Skondia 25.6
Muphrid 27.9 Sabik 28.7 Dromini VI 29.5 Lone Star 30.2
Dyev 30.8 Menkent 31.1 Thorin 31.3 Yorii 32.6
Summer 34.1 Syrma 35.3 Galatea 35.4 Zebebelgenubi 38.0
Chara 38.5 Asta 40.3 La Blon 42.9 Lipton 43.2
Killbourn 43.5 Pike IV 43.7 Alula Australis 44.7 Haddings 45.8
New Earth 46.3 Alrakis 46.3 Skye 46.7 Alphecca 47.0
Zavijava 47.8 Athenry 48.3 Chaville 48.7 Graham IV 49.6
Mizar 49.6 Moore 54.0 Unukalhai 54.3 Oliver 54.5
Kessel 54.9 Denebola 55.3 Lambrecht 55.3 Rigil Kentarus 56.5
Balkan 56.4 Altair 56.8 Nai-Stohl 58.2 Dieron 59.0


  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 Dark Age: Republic Worlds (3130), p. 217, "Lyons World Profile"
  2. 2.0 2.1 2.2 Handbook: House Marik, p. 16, "Free Worlds League Founding [[2271]"
  3. Handbook: House Kurita, p. 18, "Draconis Combine Founding - 2319"
  4. Handbook: House Steiner, p. 13, "Lyran Commonwealth Founding [2341]"
  5. Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War [2571]"
  6. 6.0 6.1 Historical: Reunification War, p. 159, "Inner Sphere - 2596"
  7. Era Report: 2750, p. 37, "Inner Sphere - 2750"
  8. Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
  9. Historical: Liberation of Terra Volume 1, p. 104, "Rim Worlds Republic - [2767] Map"
  10. 10.0 10.1 Historical: Liberation of Terra Volume 1, p. 138, "Operation LIBERATION Wave 1 [July 2772 - December 2774]"
  11. 11.0 11.1 Historical: Liberation of Terra Volume 2, p. 118, "Digesting The Hegemony"
  12. First Succession War (Source Book), p. 25, "Inner Sphere - [2786] Map"
  13. Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War [2822]"
  14. First Succession War (Source Book), p. 113, "Inner Sphere - [2822] Map"
  15. Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War [2864]"
  16. Handbook: House Marik, p. 38, "Free Worlds League after Second Succession War [2864]"
  17. Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War [3025] Map"
  18. Handbook: House Marik, p. 42, "Free Worlds League after Third Succesion War [3025] Map"
  19. House Kurita (The Draconis Combine), p. 132, "District and Prefecture Boundaries of Kurita Space"
  20. Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War [3030] Map"
  21. Handbook: House Marik, p. 51, "Free Worlds League after Fourth Succesion War [3030] Map"
  22. Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 3039 [3040] Map"
  23. Historical: War of 3039, p. 133, "Inner Sphere - 3040"
  24. Era Report: 3052, p. 11, "Inner Sphere - 3050"
  25. Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion [3052] Map"
  26. Era Report: 3052, p. 23, "Inner Sphere - 3052"
  27. Era Report: 3062, p. 11, "Inner Sphere Map [3057]"
  28. Handbook: House Marik, p. 54, "Free Worlds League after Operation Guerrero [3058] Map"
  29. Era Report: 3062, p. 29, "Inner Sphere Map [3063]"
  30. Handbook: House Steiner, p. 69, "Lyran Commonwealth after FedCom Civil War [3067] Map"
  31. Handbook: House Marik, p. 54, "Free Worlds League after FedCom Civil War [3067] Map"
  32. Jihad Secrets: The Blake Documents, p. 64, "Inner Sphere - 3075"
  33. Field Report: LAAF, p. 19, "Lyran Alliance Deployment Table [3079]"
  34. Jihad: Final Reckoning, p. 63, "Inner Sphere Map - [March 3081]"
  35. Field Manual: 3085, p. 127, "Inner Sphere Map - [October 3085]"
  36. Map of the Inner Sphere 3130
  37. Era Report: 3145, p. 11, "Inner Sphere Map - [3135]"
  38. Era Report: 3145, p. 39, "Inner Sphere Map - [3145]"
  39. 39.0 39.1 39.2 39.3 39.4 39.5 39.6 Jihad Hot Spots: Terra, p. 21, "Cracks In The Facade"
  40. The Star League, p. 16, "Terra's Errant Flock"
  41. Handbook: House Kurita, p. 18, "Draconis Combine Founding [2319]"
  42. Technical Readout: 3025, p. 162
  43. Jihad Hot Spots: Terra, p. 22, "Timeline of the Jihad"
  44. 44.0 44.1 44.2 Jihad: Final Reckoning, p. 56, "The Jihad In Review"
  45. Field Report: Clans, p. 10, "Xi Galaxy"
  46. 46.0 46.1 Jihad Hot Spots: Terra, p. 23, "Timeline of the Jihad"
  47. Technical Readout: 3145, p. 18, "Deployment"
  48. Field Manual: SLDF, p. 251, "SLDF - Terran Hegemony Military Command Map"
  49. First Succession War (Source Book), p. 137, "First Succession War Deployment Table - DCMS"
  50. 50.0 50.1 House Steiner (The Lyran Commonwealth), p. 117, "Unit Deployment Table"
  51. 51.0 51.1 51.2 51.3 51.4 51.5 NAIS The Fourth Succession War Military Atlas Volume 1, p.45, "Operation GÖTTERDÄMMERUNG"
  52. Historical: War of 3039, p. 137, "Deployment Table"
  53. 20-Year Update, p. 26
  54. Objective Raids, p. 19, "FedCom Deployment Table"
  55. 'ComStar (sourcebook), p. 85'
  56. Shattered Sphere, p. 47, "Lyran Alliance Deployment Table"
  57. Field Manual: Updates, p. 177, "Lyran Alliance Deploment Table"
  58. Field Manual: 3145, p. 168, "Clan Force Deployments - Clan Jade Falcon"