{
  "system_id": "GJ 680",
  "proper_name": "Carnarvon",
  "star_type": "K",
  "spectral_class": "K5",
  "wiki_data": {"habitable_count": 2, "inhabited_count": 2, "has_gas_giant": true, "has_asteroid_belt": true, "has_horizon_station": true, "raw_bodies_line": null},
  "bodies": [
    {"body_id": "GJ680b", "proper_name": null, "body_type": "planet", "orbit_index": 1, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.32, "orbital_period_days": 20, "rotation_period_hours": 480, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "inner rocky, tidally locked"},
    {"body_id": "GJ680c", "proper_name": null, "body_type": "planet", "orbit_index": 2, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.48, "orbital_period_days": 55, "rotation_period_hours": 1320, "atmosphere": "thin", "biome_summary": "arid", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "rocky, tidally locked"},
    {"body_id": "GJ680d", "proper_name": "Tulbagh", "body_type": "planet", "orbit_index": 3, "parent_body_id": null, "inhabited": true, "population": 150000000, "mass_class": "terrestrial", "surface_gravity": 0.90, "orbital_period_days": 130, "rotation_period_hours": 22.0, "atmosphere": "breathable", "biome_summary": "temperate", "hydrosphere": "moderate", "economic_role": "agriculture", "settlement_pattern": "dispersed", "industrial_corridor": null, "notes": "primary inhabited world, K5 warm steady light, mixed cereal and legume agriculture, Mostert family four of seven agricultural regions, Wave 2 Cape-heritage founders, council of agricultural cooperatives"},
    {"body_id": "GJ680d-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ680d", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.05, "orbital_period_days": 8, "rotation_period_hours": 192, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "small moon"},
    {"body_id": "GJ680e", "proper_name": "Hermanus", "body_type": "planet", "orbit_index": 4, "parent_body_id": null, "inhabited": true, "population": 8000000, "mass_class": "terrestrial", "surface_gravity": 0.70, "orbital_period_days": 280, "rotation_period_hours": 20.0, "atmosphere": "breathable", "biome_summary": "temperate-cool", "hydrosphere": "extensive", "economic_role": "agriculture", "settlement_pattern": "dispersed", "industrial_corridor": null, "notes": "secondary settlement body, fishing cooperative, marine protein surplus, 300-year cooperative structure"},
    {"body_id": "GJ680f", "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": 650, "rotation_period_hours": 16.0, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "frozen rocky"},
    {"body_id": "GJ680g", "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": 2000, "rotation_period_hours": 11.0, "atmosphere": "dense", "biome_summary": null, "hydrosphere": null, "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "moderate gas giant"},
    {"body_id": "GJ680g-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ680g", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.06, "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": "GJ680g-2", "proper_name": null, "body_type": "moon", "orbit_index": 2, "parent_body_id": "GJ680g", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.04, "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": "GJ680h", "proper_name": null, "body_type": "planet", "orbit_index": 7, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.22, "orbital_period_days": 5000, "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": "GJ680i", "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": 9500, "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": "GJ680-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": "GJ680-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": "GJ680d-S1", "proper_name": "Elsenburg", "orbits_body_id": "GJ680d", "station_type": "agricultural", "population": 3000000, "economic_role": "agriculture", "docking_class": "standard", "has_gate_infrastructure": false, "notes": "agricultural cooperative trade hub, Mostert family landholdings, light manufacturing, surplus export to Mabaso Junction corridor"},
    {"station_id": "GJ680-oort-S1", "proper_name": "Yzerfontein", "orbits_body_id": "GJ680-oort", "station_type": "horizon", "population": 0, "economic_role": "transit", "docking_class": "standard", "has_gate_infrastructure": true, "notes": "horizon station, 2 apertures, Gate Corp minimal rotating crew"}
  ]
}