This article is undergoing revision as part of Project: Planets, a collaborative effort to improve BattleTechWiki's coverage of planets and systems. If you would like to participate, please visit the project page, where you can add your name to the list of volunteers.

This article has completed Phase 2 of the Overhaul effort.

Hyalite neighboring systems
Hyalite neighboring systems
System information
X:Y Coordinates 268.82 : -354.19[e]
Spectral class A4IV[1]
Recharge station(s) None[1]

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

Planetary Flag
Planetary Flag
System position 5th[1]
Jump point
23 days[1]
Highest native life Reptile[1]
Reference Year 3025[1]
Ruler Fredericks Thymus, Duke of Hyalite[1]
President Ryer Castleton[1]
Capital New Amritsar[1]
Population 1,598,000,000 (apocryphal)[2]
HPG (Representative) B (Precentor Ulior Merson)[1]

Political Affiliation[edit]

Planetary Info[edit]

Named after a Terran semi-precious stone, Hyalite was first settled to gain access to chemical compounds and gemstones. Most of the settlers left Hyalite after the gem deposits were exhausted, but the plentiful water supply and pleasant environment allowed those who stayed to make a good life for themselves. The planet's economy is currently based on chemical industries.[1]. Hyalite is known to have at least one moon, Hyatos.[44]

Planetary History[edit]

Star League[edit]

Reunification War[edit]

During the Reunification War the IV Corps was sent to take Hyalite. Rather than engage in a "scorched earth" policy as some SLDF commanders did, Major General Frederick Truscott instead arranged for his aerospace and WarShip assets to damage the world's infrastructure. The two divisions of IV Corps then landed and quickly seized the primary food, fuel, and water sources used by Hyalite's cities. Small commando teams then eliminated or captured political and military leaders as a propaganda campaign blanketed the world's media outlets. The Twelfth Division allowed the Second Concordat Chasseurs to strike their rear, luring the Taurian unit into a trap. The Tenth Division then sprung the trap, pinning the Second between two Star League forces. The Taurian unit tried to withdraw but sustained heavy casualties. Footage of the Second's defeat was broadcast across the world and the SLDF units remained in their garrison locations. After waiting for six weeks (to truly let the lack of supplies sink in) the SLDF units began a slow, deliberate march across Hyalite, seizing settlement after settlement. They ran into some local partisan activity, but the SLDF forces were victorious. The world was declared pacified in 2587.[45]

Hyalite was annexed by the Federated Suns at the close of the Reunification War.

Reign of the Star League[edit]

Following the Reunification War, the Star League's 19th Fleet (SLDF) maintained their fleet headquarters beneath the surface of Hyalite's airless moon, Hyatos, which was designed to withstand an orbital bombardment.[46] In orbit around Hyatos, was the forward repair base, used by the Fifth, Eleventh and Nineteenth fleets for mid-level repairs and upgrades. SLIC also used the base as a final jumping-off point for undercover agents traveling to the Concordat.


Located near the Periphery edge of the Capellan March, Hyalite served the Federated Suns as a base world for counteracting Capellan and Taurian aggression.

In 3067 the Concordat invaded Hyalite, attempting to gain control of the planet, but discovered that the population was considerably less enthusiastic to see them than the inhabitants of the Pleiades Cluster. The Third Taurian Lancers and a small mercenary command, Lennox's Light Horse, battled against forces from the Second Albion Training Cadre before the sudden departure of the Lancers back to Concordat space left the Light Horse high and dry. Despite the slaughter of civilian dependents on Bromhead by Taurian forces the month before, the Light Horse were allowed to surrender and depart after handing over the WHM-8D Warhammer piloted by the Light Horse's CO as ransom, due to their good conduct during the campaign.[47] During the Jihad, in response to the asteroid bombardment of Taurus and evidence that implicated the Federated Suns, the Taurian Concordat launched a second invasion of the Federated Suns. Hyalite was an early target, captured during late June 3074.[33][34]

In February 3075 the Federated Suns launched a counter-offensive against the Taurian invasion, striking at the worlds of Hyalite, Lothair and Warren. The counter-offensive used a mix of AFFS and militia forces, backed up by the mercenary Hansen's Roughriders. The defending Gordon's Armored Cavalry were shattered when the Roughriders attacked using fuel-air bombs, and the Federated Suns quickly recaptured Hyalite as a result.[34][48] The Roughriders went on to attack the world of Amber Grove in April using a mix of nuclear and non-nuclear weapons captured from the Taurian forces on Hyalite.[34][49]

A few weeks later, the TCS Vendetta arrived in the Hyalite system, and on the 3rd of May 3075 the WarShip launched an orbital attack on Hyalite, concentrating on the military facilities on the planet as well as the HPG compound that had been subverted by the Roughriders. This was the first of a number of orbital bombardments the Vendetta would carry out across several worlds in pursuit of the Roughriders.[50][51]

Military Deployment[edit]






  • First Dagonlords[56]


  • First Dragonlords[56]






- At this point in time, the 3rd Taurian Lancers were deployed across Hyalite and Lothair. The 3rd was at 60% of full strength.

Planetary Locations[edit]

  • Hartsfield: the site of a major AFFS supply depot on Hyalite.[47]

Nearby Systems[edit]

Planets within 2 jumps (60 light-years)
Closest planets first:
Planet Distance (LY) Jumps 2750 3025 3030 3040 3052 3057 3062
Amber Grove 9.05 1 TC TC TC TC TC TC TC
Lothair 17.42 1 FS FS FS FC FC FC FC
Brusett 35.28 2 FS FS FS FC FC FC FC
Euschelus 37.38 2 TC TC TC TC TC TC TC
Perdition 38.36 2 TC TC TC TC TC TC TC
Warren 39.35 2 FS FS FS FC FC FC FC
Keuterville 42.60 2 FS FS FS FC FC FC FC
Grossbach 43.27 2 TC TC TC TC TC TC TC
Mithron 45.89 2 TC TC TC TC TC TC TC
Atreus Prime 45.95 2 TC TC TC TC TC TC TC
Sterope 50.63 2 TC TC TC TC TC TC TC
Brockway 51.14 2 FS FS FS FC FC FC FC
Anaheim 52.70 2 FS FS FS FC FC FC FC
Die Moot 54.21 2 FS FS FS FC FC FC FC
Logan's Land 55.20 2 TC TC TC TC TC TC TC
Renfield 56.02 2 TC TC TC TC TC TC TC
Firgrove 58.98 2 FS FS FS FC FC FC FC


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 House Davion (The Federated Suns), p. 199, "Hyalite"
  2. MechWarrior (1989 Video Game) (apocryphal)
  3. Handbook: House Davion, p. 18, "Federated Suns at their Founding - [2317] Map"
  4. 4.0 4.1 4.2 Handbook: Major Periphery States, p, 121, "Taurian Concordat after Age of War [2571], Fall of the Star League [2750] and End of the 3rd Succession War [3025]"
  5. Handbook: House Davion, p. 48, "Federated Suns After Age of War - [2571] Map"
  6. Historical: Reunification War, p. 64
  7. Historical: Reunification War, p. 73, "Lothair and Anaheim"
  8. Historical: Reunification War, p. 159, "Inner Sphere - [2596] Map"
  9. Era Report: 2750, p. 37, "Inner Sphere - [2750] Map"
  10. Field Manual: SLDF, "Inner Sphere - [2764] Map"
  11. Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - [2765] Map"
  12. Field Report 2765: Federated Suns, p. 29, "Federated Suns Armed Forces Deployment Map - [2765]"
  13. Field Report 2765: Periphery, p. 37, "Taurian Defense Forces Deployment Map - [2765]"
  14. First Succession War (Source Book), p. 25, "Inner Sphere - [2786] Map"
  15. Handbook: House Davion, p. 54, "Federated Suns After First Succession War - [2822] Map"
  16. Historical: Liberation of Terra Volume 2, p. 122-123, "Inner Sphere - [2822] Map"
  17. First Succession War (Source Book), p. 113, "Inner Sphere - [2822] Map"
  18. Handbook: House Davion, p. 60, "Federated Suns After Second Succession War - [2864] Map"
  19. The Periphery (Sourcebook), p. 151, "Maps of the Periphery"
  20. House Davion (The Federated Suns), "Federated Suns Map - [3025]"
  21. Handbook: House Davion, p. 70, "Federated Suns After Third Succession War - [3025] Map"
  22. Handbook: House Davion, p. 72, "Federated Suns After Fourth Succession War - [3030] Map"
  23. 23.0 23.1 Handbook: Major Periphery States, p, 127, "Taurian Concordat after modern colonization drive [3040] and after FedCom Civil War [3067]"
  24. Handbook: House Davion, p. 74, "Federated Suns After War of 3039 - [3040] Map"
  25. Historical: War of 3039, p. 133, "Inner Sphere - [3040] Map"
  26. Era Report: 3052, p. 11, "Inner Sphere - [3050] Map"
  27. Era Report: 3052, p. 23, "Inner Sphere - [3052] Map"
  28. Era Report: 3062, p. 11, Inner Sphere - [3057] Map
  29. 29.0 29.1 Handbook: House Davion, p. 78, "Federated Suns After Operation Guerrero - [3058] Map" Cite error: Invalid <ref> tag; name "HB:HDp78" defined multiple times with different content
  30. The Periphery, 2nd Edition, p. 111, "Taurian Concordat and Tortuga Dominions"
  31. Era Report: 3062, p. 29, "Inner Sphere - [3063] Map"
  32. Jihad: Final Reckoning, p. 43, "Inner Sphere - [3067] Map"
  33. 33.0 33.1 Jihad Hot Spots: 3076, p. 52, "Timeline of the Jihad"
  34. 34.0 34.1 34.2 34.3 34.4 Jihad: Final Reckoning, p. 53, "The Jihad In Review"
  35. Jihad Secrets: The Blake Documents, p. 65, "Inner Sphere Map - [3075] Map"
  36. Field Report: Periphery, p. 23, "Taurian Concordat Deployment Map - [August 3079]"
  37. Field Report: AFFS, p. 21, "Federated Suns Armed Forces Deployment Map - [August 3079]"
  38. Jihad: Final Reckoning, p. 63, "Inner Sphere - [3081] Map"
  39. Field Manual: 3085, p. Vii, "Inner Sphere - [3085] Map"
  40. Map of the Inner Sphere 3130
  41. Era Report: 3145, p. 11, "Inner Sphere - [3135] Map"
  42. Era Report: 3145, p. 39, "Inner Sphere - [3145] Map"
  43. Field Manual: 3145, p. VI, "Inner Sphere - [3145] Map"
  44. Field Manual: SLDF, pg 228, "Homeport"
  45. Historical: Reunification War, p. 88
  46. Field Manual SLDF, p. 228
  47. 47.0 47.1 47.2 Sound and Fury
  48. 48.0 48.1 Jihad Hot Spots: Terra, p. 14, "Timeline of the Jihad"
  49. Jihad Hot Spots: Terra, p. 15, "Timeline of the Jihad"
  50. Jihad Hot Spots: Terra, p. 16, "Timeline of the Jihad"
  51. Jihad: Final Reckoning, p. 54, "The Jihad In Review"
  52. Historical: Reunification War, p. 64
  53. 53.0 53.1 53.2 Historical: Reunification War, p. 143
  54. Field Manual: SLDF, pg 228, "Nineteenth Fleet"
  55. Field Report 2765: Federated Suns, p. 15, "Regimental Status"
  56. 56.0 56.1 First Succession War (Source Book), p. 135, "First Succession War Deployment Table - AFFS"
  57. 57.0 57.1 Historical: War of 3039, p. 141, "Deployment Table"
  58. 20 Year Update, p. 22, "Federated Commonwealth Deployment Table"
  59. Field Manual: Updates, p. 138, "Federated Suns Deployment Table"
  60. Field Report: Periphery, p. 12, "Taurian Concordat Regimental Status"