{
  "system_id": "GJ 75",
  "proper_name": "Enugu",
  "star_type": "K",
  "spectral_class": "K0V",
  "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": "GJ75b", "proper_name": null, "body_type": "planet", "orbit_index": 1, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.38, "orbital_period_days": 30, "rotation_period_hours": 18.0, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "inner rocky"},
    {"body_id": "GJ75c", "proper_name": null, "body_type": "planet", "orbit_index": 2, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.52, "orbital_period_days": 75, "rotation_period_hours": 22.0, "atmosphere": "thin", "biome_summary": "arid", "hydrosphere": "none", "economic_role": "extraction", "settlement_pattern": null, "industrial_corridor": null, "notes": "mineral-rich second body, primary extraction target, processing operations"},
    {"body_id": "GJ75d", "proper_name": "Onitsha", "body_type": "planet", "orbit_index": 3, "parent_body_id": null, "inhabited": true, "population": 120000000, "mass_class": "terrestrial", "surface_gravity": 0.92, "orbital_period_days": 180, "rotation_period_hours": 23.0, "atmosphere": "breathable", "biome_summary": "temperate", "hydrosphere": "moderate", "economic_role": "transit", "settlement_pattern": "urban", "industrial_corridor": null, "notes": "primary inhabited world, K0V Earth-comparable light, Wave 3 Igbo-heritage founding families (Okonkwo, Eze, Nwachukwu), mineral processing hub, outer north_reach credit market, junction commercial center"},
    {"body_id": "GJ75d-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ75d", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.06, "orbital_period_days": 10, "rotation_period_hours": 240, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "small moon"},
    {"body_id": "GJ75e", "proper_name": null, "body_type": "planet", "orbit_index": 4, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.42, "orbital_period_days": 380, "rotation_period_hours": 18.0, "atmosphere": "thin", "biome_summary": "arid", "hydrosphere": "trace", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "outer HZ edge"},
    {"body_id": "GJ75f", "proper_name": null, "body_type": "planet", "orbit_index": 5, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.35, "orbital_period_days": 850, "rotation_period_hours": 16.0, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "cold rocky"},
    {"body_id": "GJ75g", "proper_name": null, "body_type": "gas_giant", "orbit_index": 6, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "gas_giant", "surface_gravity": null, "orbital_period_days": 2400, "rotation_period_hours": 10.0, "atmosphere": "dense", "biome_summary": null, "hydrosphere": null, "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "large gas giant"},
    {"body_id": "GJ75g-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ75g", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.07, "orbital_period_days": 5, "rotation_period_hours": 120, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "inner gas giant moon"},
    {"body_id": "GJ75g-2", "proper_name": null, "body_type": "moon", "orbit_index": 2, "parent_body_id": "GJ75g", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.05, "orbital_period_days": 14, "rotation_period_hours": 336, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "icy outer gas giant moon"},
    {"body_id": "GJ75h", "proper_name": null, "body_type": "planet", "orbit_index": 7, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.25, "orbital_period_days": 5500, "rotation_period_hours": 20.0, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "outer ice world"},
    {"body_id": "GJ75i", "proper_name": null, "body_type": "planet", "orbit_index": 8, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.11, "orbital_period_days": 10000, "rotation_period_hours": 22.0, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "distant ice dwarf"},
    {"body_id": "GJ75-belt", "proper_name": null, "body_type": "asteroid_belt", "orbit_index": 9, "parent_body_id": null, "inhabited": false, "population": 0, "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": "outer belt"},
    {"body_id": "GJ75-oort", "proper_name": null, "body_type": "oort_cloud", "orbit_index": 10, "parent_body_id": null, "inhabited": false, "population": 0, "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": "GJ75c-S1", "proper_name": "Nnewi", "orbits_body_id": "GJ75c", "station_type": "industrial", "population": 15000000, "economic_role": "extraction", "docking_class": "major", "has_gate_infrastructure": false, "notes": "mineral processing complex, founding family consortium operations, outer north_reach credit market, commercial registry with second ledger"},
    {"station_id": "GJ75d-S1", "proper_name": "Awka", "orbits_body_id": "GJ75d", "station_type": "commercial", "population": 8000000, "economic_role": "transit", "docking_class": "major", "has_gate_infrastructure": false, "notes": "junction transit hub, Assembly filing office, commercial district"},
    {"station_id": "GJ75-oort-S1", "proper_name": "Oguta", "orbits_body_id": "GJ75-oort", "station_type": "horizon", "population": 2000, "economic_role": "transit", "docking_class": "major", "has_gate_infrastructure": true, "notes": "horizon station, 3 apertures, Gate Corp rotating crew"}
  ]
}