{
  "system_id": "GJ 71",
  "proper_name": "Tau Ceti",
  "star_type": "G",
  "spectral_class": "G8V",
  "wiki_data": {
    "habitable_count": 2,
    "inhabited_count": 3,
    "has_gas_giant": false,
    "has_asteroid_belt": true,
    "has_horizon_station": true,
    "raw_bodies_line": "| **Bodies** | 2 habitable \u00b7 3 inhabited |"
  },
  "bodies": [
    {
      "body_id": "GJ71b",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 1,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.35,
      "orbital_period_days": 42,
      "rotation_period_hours": 1012,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "inner rocky, tidally locked"
    },
    {
      "body_id": "GJ71c",
      "proper_name": "Threshold",
      "body_type": "planet",
      "orbit_index": 2,
      "parent_body_id": null,
      "inhabited": true,
      "population": 600000000,
      "mass_class": "terrestrial",
      "surface_gravity": 0.92,
      "orbital_period_days": 310,
      "rotation_period_hours": 22.4,
      "atmosphere": "breathable",
      "biome_summary": "temperate",
      "hydrosphere": "ocean",
      "economic_role": "agricultural",
      "settlement_pattern": "urban_concentrated",
      "industrial_corridor": null,
      "notes": "primary garden world, first colony world through the gates"
    },
    {
      "body_id": "GJ71d",
      "proper_name": "Arden",
      "body_type": "planet",
      "orbit_index": 3,
      "parent_body_id": null,
      "inhabited": true,
      "population": 500000000,
      "mass_class": "terrestrial",
      "surface_gravity": 0.87,
      "orbital_period_days": 520,
      "rotation_period_hours": 27.1,
      "atmosphere": "breathable",
      "biome_summary": "temperate",
      "hydrosphere": "rivers",
      "economic_role": "agricultural",
      "settlement_pattern": "dispersed_rural",
      "industrial_corridor": null,
      "notes": "secondary garden world, pastoral"
    },
    {
      "body_id": "GJ71d-1",
      "proper_name": "Verantis",
      "body_type": "moon",
      "orbit_index": 1,
      "parent_body_id": "GJ71d",
      "inhabited": true,
      "population": 20000000,
      "mass_class": "dwarf",
      "surface_gravity": 0.12,
      "orbital_period_days": 8.2,
      "rotation_period_hours": 196.8,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": "none",
      "economic_role": "transit",
      "settlement_pattern": "domed",
      "industrial_corridor": null,
      "notes": "domed service settlement, tidally locked to Arden"
    },
    {
      "body_id": "GJ71e",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 4,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.45,
      "orbital_period_days": 1850,
      "rotation_period_hours": 16.3,
      "atmosphere": "thin",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer ice world"
    },
    {
      "body_id": "GJ71f",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 5,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.25,
      "orbital_period_days": 3500,
      "rotation_period_hours": 18.0,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer ice world"
    },
    {
      "body_id": "GJ71g",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 6,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "dwarf",
      "surface_gravity": 0.18,
      "orbital_period_days": 6000,
      "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": "GJ71h",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 7,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "dwarf",
      "surface_gravity": 0.12,
      "orbital_period_days": 9500,
      "rotation_period_hours": 20.0,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "distant ice dwarf"
    },
    {
      "body_id": "GJ71i",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 8,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.22,
      "orbital_period_days": 4500,
      "rotation_period_hours": 16.0,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer ice world"
    },
    {
      "body_id": "GJ71-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": "debris disk"
    },
    {
      "body_id": "GJ71-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": ""
    }
  ],
  "stations": [
    {
      "station_id": "GJ71-oort-S1",
      "proper_name": "Horizon Station",
      "orbits_body_id": "GJ71-oort",
      "station_type": "horizon",
      "population": 80000000,
      "economic_role": "transit",
      "docking_class": "major",
      "has_gate_infrastructure": true,
      "notes": "Veil Institute founding site + gate infrastructure"
    }
  ]
}