{
  "system_id": "GJ 19",
  "proper_name": "Solheim",
  "star_type": "G",
  "spectral_class": "G2IV",
  "wiki_data": {
    "habitable_count": 1,
    "inhabited_count": 1,
    "has_gas_giant": true,
    "has_asteroid_belt": true,
    "has_horizon_station": true,
    "raw_bodies_line": null
  },
  "bodies": [
    {
      "body_id": "GJ19b",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 1,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "terrestrial",
      "surface_gravity": 0.54,
      "orbital_period_days": 62.0,
      "rotation_period_hours": 18.6,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "inner rocky, hot, uninhabited"
    },
    {
      "body_id": "GJ19c",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 2,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "terrestrial",
      "surface_gravity": 0.78,
      "orbital_period_days": 240.0,
      "rotation_period_hours": 24.2,
      "atmosphere": "thin",
      "biome_summary": "hot_arid",
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "hot inner rocky, desiccated, uninhabited"
    },
    {
      "body_id": "GJ19d",
      "proper_name": "Åker",
      "body_type": "planet",
      "orbit_index": 3,
      "parent_body_id": null,
      "inhabited": true,
      "population": 85000000,
      "mass_class": "terrestrial",
      "surface_gravity": 0.96,
      "orbital_period_days": 750.0,
      "rotation_period_hours": 25.4,
      "atmosphere": "standard",
      "biome_summary": "temperate",
      "hydrosphere": "liquid_water",
      "economic_role": "agricultural",
      "settlement_pattern": "dispersed",
      "industrial_corridor": "agricultural_export",
      "notes": "primary inhabited world; wave_3 Norwegian heritage; 2-aperture loop_member; G2IV subgiant — bright genuine daylight, long growing seasons, field agriculture without genetic modification; western corridor's most productive agricultural system; grain, processed food, biological feedstock exports; MVG food supply contract (120-year continuous renewal); Veil Institute research station present"
    },
    {
      "body_id": "GJ19-belt",
      "proper_name": null,
      "body_type": "asteroid_belt",
      "orbit_index": 4,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": null,
      "surface_gravity": null,
      "orbital_period_days": null,
      "rotation_period_hours": null,
      "atmosphere": null,
      "biome_summary": null,
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "inner asteroid belt"
    },
    {
      "body_id": "GJ19e",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 5,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "terrestrial",
      "surface_gravity": 0.64,
      "orbital_period_days": 1800.0,
      "rotation_period_hours": 28.6,
      "atmosphere": "thin",
      "biome_summary": "cold_arid",
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer rocky, uninhabited"
    },
    {
      "body_id": "GJ19f",
      "proper_name": null,
      "body_type": "gas_giant",
      "orbit_index": 6,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": null,
      "surface_gravity": null,
      "orbital_period_days": 4800.0,
      "rotation_period_hours": 10.4,
      "atmosphere": "gas_giant",
      "biome_summary": null,
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer gas giant, two moons"
    },
    {
      "body_id": "GJ19f-m1",
      "proper_name": null,
      "body_type": "moon",
      "orbit_index": 1,
      "parent_body_id": "GJ19f",
      "inhabited": false,
      "population": null,
      "mass_class": "dwarf",
      "surface_gravity": 0.14,
      "orbital_period_days": 7.2,
      "rotation_period_hours": 172.8,
      "atmosphere": "trace",
      "biome_summary": "frozen",
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "icy moon, tidally locked"
    },
    {
      "body_id": "GJ19f-m2",
      "proper_name": null,
      "body_type": "moon",
      "orbit_index": 2,
      "parent_body_id": "GJ19f",
      "inhabited": false,
      "population": null,
      "mass_class": "dwarf",
      "surface_gravity": 0.09,
      "orbital_period_days": 15.4,
      "rotation_period_hours": 369.6,
      "atmosphere": null,
      "biome_summary": "barren",
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "small rocky moon, tidally locked"
    },
    {
      "body_id": "GJ19g",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 7,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "terrestrial",
      "surface_gravity": 0.48,
      "orbital_period_days": 12000.0,
      "rotation_period_hours": 36.4,
      "atmosphere": "trace",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer icy rocky, uninhabited"
    },
    {
      "body_id": "GJ19h",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 8,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "terrestrial",
      "surface_gravity": 0.38,
      "orbital_period_days": 26000.0,
      "rotation_period_hours": 44.8,
      "atmosphere": "trace",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "distant icy rocky, uninhabited"
    },
    {
      "body_id": "GJ19i",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 9,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "terrestrial",
      "surface_gravity": 0.29,
      "orbital_period_days": 52000.0,
      "rotation_period_hours": 53.2,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "far outer icy rocky, uninhabited"
    },
    {
      "body_id": "GJ19j",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 10,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": "dwarf",
      "surface_gravity": 0.12,
      "orbital_period_days": 96000.0,
      "rotation_period_hours": 30.6,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outermost dwarf, near oort boundary"
    },
    {
      "body_id": "GJ19-oort",
      "proper_name": null,
      "body_type": "oort_cloud",
      "orbit_index": 11,
      "parent_body_id": null,
      "inhabited": false,
      "population": null,
      "mass_class": null,
      "surface_gravity": null,
      "orbital_period_days": null,
      "rotation_period_hours": null,
      "atmosphere": null,
      "biome_summary": null,
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "oort cloud"
    }
  ],
  "stations": [
    {
      "station_id": "GJ19-oort-S1",
      "proper_name": "Solheim Horizon",
      "orbits_body_id": "GJ19-oort",
      "station_type": "horizon",
      "population": 840,
      "economic_role": "transit",
      "docking_class": "major",
      "has_gate_infrastructure": true,
      "notes": "horizon station — 2 apertures; loop_member; connects Caldwell Point and Dokkum; agricultural freight staging"
    },
    {
      "station_id": "GJ19d-S1",
      "proper_name": "Lystind",
      "orbits_body_id": "GJ19d",
      "station_type": "research",
      "population": 180,
      "economic_role": "research",
      "docking_class": "standard",
      "has_gate_infrastructure": false,
      "notes": "Veil Institute research station; subgiant irradiation agricultural studies; transient researchers, permanent station; data not shared with local university"
    },
    {
      "station_id": "GJ19d-S2",
      "proper_name": "Kornhavn",
      "orbits_body_id": "GJ19d",
      "station_type": "commercial",
      "population": 6200,
      "economic_role": "commercial",
      "docking_class": "major",
      "has_gate_infrastructure": false,
      "notes": "grain freight terminal and commercial exchange; MVG supply contract routing; seasonal agricultural processing"
    }
  ]
}