Shinonoi 3151.svg
System Information
X:Y Coordinates79.871 : 53.979[e]
Spectral classG3V[1]

System Description[edit]

Shinonoi is located near the Yance and Halstead Station systems.

Political Affiliation[edit]

Shinonoi I[edit]

Shinonoi I
System positionFirst[1]
Jump Point distance9 days[1]
Moons1 (Janjiro)[1]
Surface gravity1.00[1]
Atmospheric pressureStandard (Breathable)[1]
Equatorial temperature29°C[1]
Surface water88%[1]
Highest native lifeMammals[1]
Landmasses4 (Jukemwa, Kokuya, Matsuda, Narosi)[1]
History and Culture
Population1,003,000,000 (3130)[1][44]
Government and Infrastructure
Noble RulerPlanetary Governor
Military CommanderLegate Garsted D'Roma (3130)[1][44]
CapitalMarimasu (until 3075),[1] Rising Sun (3130)[1][44]

Planetary History[edit]

Early History[edit]

As a planet with a long, mild growing season, fertile land and ample native livestock, Shinonoi has a long history of farming and ranching, and the continents of Kokuya and Matsuda were dedicated to both activities when the planet was first settled. While Jukemwa is an unwelcoming continent small settlements of hardy souls were founded on various islands off Jukemwa and established what would become some of Shinonoi's most successful fishing communities.[1]

With the discovery of the mineral riches on Narosi the continent became the focus for industries related to mining and manufacturing as well as the site of the planetary capital, Marimasu.[1]

Succession Wars and Jihad[edit]

Though it was subject to a few raids from the Federated Suns, the most damaging event in the planet's history occurred on 18 July 3075. A rogue asteroid, eight kilometers wide and identified with the designation SH01378-A, slammed into Narosi.[45][46] The Shinonoi government enacted at least three plans to try and divert the asteroid from its course; remote thrusters were mounted on the asteroid, but failed to divert it enough, despite burning up until the asteroid hit the atmosphere, a DropShip, the Bright Sun, was lost while attempting to use its thrusters to adjust the path of the asteroid, and a number of DropShips and small craft launched multiple nuclear strikes on the asteroid. The last attempt succeeded in dislodging some fragments of the asteroid, but this only created a debris field that followed the asteroid into the atmosphere of Shinonoi. Government efforts to clear the impact zone were complicated by the Shinto Prophet Musashi, who called on the faithful to perform a kagura dance in the impact zone, convinced that it would drive the asteroid away; just as the government efforts to divert the asteroid failed, so did the kami no kura performed by the many Shintoists gathered together by Musashi's visions.[47]

The resultant explosion leveled the continent, destroying three cities and setting the rest of the continent on fire. The material ejected into the atmosphere blocked sunlight, preventing it from reaching the planet's surface. The result was a severe drop in temperature, with Shinonoi losing approximately 5° Celsius after the impact. The lack of sunlight and lower temperature devastated the agricultural sector. To top things off, the impact also transmitted energy along the fault lines located in the planet's crust, causing earthquakes on Matsuda and Kokuya, the two continents dedicated to agriculture.[1]

Even with the efforts being taken by the various interstellar nations to combat the Word of Blake at the time the Combine relief agencies and allies of the Combine poured aid into Shinonoi. This aid included money, medical aid and equipment and the leader of the allied coalition, Devlin Stone, personally sponsored a program to restore order after the destruction of Marimasu and to assist helping the planet recover.[1][48]

In addition to the physical and environmental damage done to Shinonoi by the asteroid strike, the Combine response to the strike provoked outrage from many Arkab leaders; on the 1st of August, Gunji-no-Kanrei Kiyomori Minamoto joined the coalition leader Devlin Stone in promising aid to Shinonoi, a distinct contrast to the position taken by the Combine following the devastating asteroid strike on Arkab earlier in the Jihad.[45][46][48] The first ships bringing aid to Shinonoi arrived on the 7th of September.[46][49]


When the borders of the Republic of the Sphere expanded in the 3080s Shinonoi was incorporated into the Republic and Devlin Stone had many people relocated to the planet to reclaim what had been lost as a result of the asteroid strike. By 3130 the recovery efforts had allowed Shinonoi to prosper again; the fisheries of Jukemwa were making their first profits since the asteroid strike, and Shinonoi had become a viable agricultural world once more. The continent showing the least recovery was Narosi, which was still dotted with the blasted remains of dead cities and was still largely a wasteland, although a number of small towns had been established. A new planetary capital, Rising Sun, had been established on Matsuda and was the site of the largest spaceport on Shinonoi. The bulk of the planetary defense force was located near Rising Sun in the city of Kaffeli.[1]

In 3135, RAF forces tried to recapture the planet. Their forces landed in the Matsuda continent, not far from the capital, Rising Sun.[50] Not far ends up being about 250 km to the north. RAF forces set up their Base Camp at landing zone and then start moving on.[51] Exhausted after three days of a 250 km winding march, wading through the ripe fields because enemy fire came in every time RAF made a move forward plus some skirmishes where patrols of light 'Mechs, when finally RAF is position for the real fighting, they are exhausted.[52] Things go bad. DCMS assault 'Mechs, infantry, aerial support force RAF forces to take a new position, and then abandon it.[53] RAF forces seem to keep trying to delay leaving the planet when they got to a river that coursed through a 15-meter-deep ravine. Slopes were gentle enough to let their forces walk down easily, but steep enough that they could quickly disappear from view. They went down, and Captain Michelle Cane gave the order immediately to move to the DCMS left flank. They ran, breaking away from the main force which stayed the course to draw their fire. Then these RAF forces came out of the ravine hard. DCMS forces weren't entirely surprised, but they weren't expecting RAF to come on so fast. Their left gave a little, and the whole front rippled. The timing had been perfect and the bulk of RAF forces turned right there and hit DCMS while they were confused. They fell back, and RAF chased them all day.[54] Thanks to this, RAF forces were finally near Rising Sun.[55] RAF forces tried to conquer the city block by block, and though MechWarriors like Evan Kaiple were not happy with that tactic because securing buildings forgets that enemy has jump capable 'Mechs that can counter this tactic, Captain Michelle Cane was adamant on this.[56] DCMS finally attacked RAF from behind. The first wave charged the RAF flank and had them reeling pretty quickly, and then a second wave dropped from above. Though DCMS lost most of their units in the second wave, they messed RAF forces up. Then end up scrambling and out of formation. The number of total RAF losses was unknown, but several units still hadn't regrouped at the end and they, lost on unfamiliar streets that, suddenly, are filled with enemies waiting for an ambush.[57] After several days with their forces dispersed and suffering night attacks,[58][59] RAF forces retreat, beaten back on another front.[60]

Military Deployment[edit]



Shinonoi has four major landmasses: the continents of Jukemwa, Kokuya, Matsuda, and Narosi. Jukemwa lies completely within the northern polar zone of Shinonoi, is largely covered by snow and ice and was considered largely uninhabited. The equatorial continent of Narosi is the smallest of the four continents and has an abundance of mineral deposits and metal ores.[1]

Planetary Locations[edit]

  • Rising Sun: planetary capital city constructed after the incorporation of the planet to the Republic of the Sphere[62][47]

Map Gallery[edit]

Nearby Systems[edit]

Closest 48 systems (47 within 60 light-years)
Distance in light years, closest systems first:
Agador 10.3 Halstead Station 10.7 Ashio 14.2 Sadachbia 18.1
Ancha 18.4 Biham 19.1 Chichibu 23.5 Piedmont 23.8
Kurhah 24.4 Albalii 26.1 Miyazaki 28.7 Al Na'ir 30.1
Skat 30.3 Shimonita 31.7 Okaya 33.1 Lapida 33.2
Murchison 34.5 Dabih 35.6 Markab 36.0 Nashira 38.1
Elix 38.2 Telos 38.5 Cylene 39.0 Pokhara 41.1
Galatia 41.2 Waddesdon 42.1 Tannil 42.3 Algedi 43.2
Celebes 44.0 Kervil 46.4 Towne 47.2 Deneb Algedi 47.8
Helen 49.3 New Britain 50.2 Shitara 50.6 Ozawa 51.4
Quentin 53.7 Kitalpha 53.8 Grootfontein 54.0 Addicks 55.3
Fellanin 56.4 Nirasaki 57.2 Errai 57.4 Mallory's World 57.5
Kuzuu 58.2 Ronel 58.8 Sadalbari 59.0 Junction 60.4


  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 1.20 Dark Age: Republic Worlds (3130), p. 42: "Shinonoi"
  2. Handbook: House Davion, p. 18: "Federated Suns at their Founding [2317] Map"
  3. Handbook: House Kurita, p. 18: "Draconis Combine Founding" - [2319] Map
  4. Handbook: House Kurita, p. 31: "Draconis Combine after Age of War - [2571] Map"
  5. Handbook: House Davion, p. 48: "Federated Suns after Age of War - [2571] Map"
  6. Historical: Reunification War, p. 159: "Inner Sphere - [2596]" Map
  7. Era Report: 2750, p. 37: "Inner Sphere - 2750"
  8. Field Manual: SLDF, p. xi: "Inner Sphere - [2764] Map"
  9. Historical: Liberation of Terra Volume 1, p. 11: "Inner Sphere - [2765] Map"
  10. First Succession War, p. 25: "Inner Sphere - [2786] Map"
  11. Handbook: House Kurita, p. 43: "Draconis Combine after First Succession War - [2822] Map"
  12. Handbook: House Davion, p. 54: "Federated Suns after First Succession War - [2822] Map"
  13. Historical: Liberation of Terra Volume 2, p. 122: "Inner Sphere - [2822] Map"
  14. First Succession War, p. 113: "Inner Sphere - [2822] Map"
  15. Handbook: House Kurita, p. 53: "Draconis Combine after Second Succession War - [2864] Map"
  16. Handbook: House Davion, p. 60: "Federated Suns after Second Succession War - [2864] Map"
  17. House Kurita (The Draconis Combine), foldout: "Draconis Combine Map - [3025]"
  18. Handbook: House Kurita, p. 64: "Draconis Combine after Third Succession War - [3025] Map"
  19. House Davion (The Federated Suns), foldout: "Federated Suns - [3025] Map"
  20. Handbook: House Davion, p. 70: "Federated Suns after Third Succession War - [3025] Map"
  21. Handbook: House Kurita, p. 66: "Draconis Combine after Fourth Succession War - [3030] Map"
  22. Handbook: House Davion, p. 71: "Federated Suns after Fourth Succession War - [3030] Map"
  23. Historical: War of 3039, p. 133: "Inner Sphere - [3040] Map"
  24. Handbook: House Davion, p. 76: "Federated Suns after War of 3039 Map"
  25. Handbook: House Kurita, p. 68: "Draconis Combine after War of 3039 - [3040] Map"
  26. Era Report: 3052, p. 11: "Inner Sphere - [3050] Map"
  27. Era Report: 3052, p. 23: "Inner Sphere - [3052] Map"
  28. Handbook: House Kurita, p. 71: "Draconis Combine after Operation REVIVAL - [3052] Map"
  29. Era Report: 3062, p. 11: Inner Sphere - [3057] Map
  30. Handbook: House Davion, p. 78: "Federated Suns after Operation Guerrero - [3058] Map"
  31. Era Report: 3062, p. 29: Inner Sphere - [3063] Map
  32. Handbook: House Kurita, p. 74: "Draconis Combine after FedCom Civil War - [3067] Map"
  33. Handbook: House Davion, p. 82: "Federated Suns after FedCom Civil War - [3067] Map"
  34. Jihad: Final Reckoning, p. 42: "Inner Sphere - [October 3067] Map"
  35. Jihad Secrets: The Blake Documents, p. 65: "Inner Sphere - [3075] Map"
  36. Field Report: DCMS, p. 21: "Draconis Combine Mustered Soldiery Deployment Map - [August 3079]"
  37. Field Report: AFFS, p. 21: "Armed Forces of the Federated Suns Deployment Map - [August 3079]"
  38. Jihad: Final Reckoning, p. 63: "Inner Sphere Map - [March 3081]"
  39. Field Manual: 3085, p. 127: "Inner Sphere Map - [October 3085]"
  40. Daughter of the Dragon, ch. 18
  41. Era Report: 3145, p. 11: "Inner Sphere - [3135] Map"
  42. Era Report: 3145, p. 39: "Inner Sphere Map - [3145] Map"
  43. Field Manual: 3145, p. VI: "Inner Sphere - [3145] Map"
  44. 44.0 44.1 44.2 Dark Age: Republic of the Sphere, p. 7: "Prefecture II"
  45. 45.0 45.1 Jihad Hot Spots: Terra, p. 17: "Timeline of the Jihad"
  46. 46.0 46.1 46.2 Jihad: Final Reckoning, p. 54: "The Jihad in Review"
  47. 47.0 47.1 Jihad Hot Spots: 3076, p. 55: "Heavens Afire"
  48. 48.0 48.1 Jihad Hot Spots: 3076, p. 57: "Tell-Tale Heart"
  49. Jihad Hot Spots: Terra, p. 18: "Timeline of the Jihad"
  50. Dark Age: 3135 PDA Journals, p. 206: "22 July 3135"
  51. Dark Age: 3135 PDA Journals, p. 216: "19 August 3135"
  52. Dark Age: 3135 PDA Journals, p. 217: "24 August 3135"
  53. Dark Age: 3135 PDA Journals, p. 218: "29 August 3135"
  54. Dark Age: 3135 PDA Journals, p. 219: "02 September 3135"
  55. Dark Age: 3135 PDA Journals, p. 221: "12 September 3135"
  56. Dark Age: 3135 PDA Journals, p. 222: "16 September 3135"
  57. Dark Age: 3135 PDA Journals, p. 224: "21 September 3135"
  58. Dark Age: 3135 PDA Journals, p. 227: "26 September 3135"
  59. Dark Age: 3135 PDA Journals, p. 228: "30 September 3135"
  60. Dark Age: 3135 PDA Journals, p. 229: "05 October 3135"
  61. First Succession War, p. 137: "First Succession War Deployment Table - DCMS"
  62. Dark Age: 3135 PDA Journals, p. 221: "12 September 3135"