{
  "system_id": "GJ 820B",
  "proper_name": "Cygni B",
  "star_type": "K",
  "spectral_class": "K7V",
  "wiki_data": {
    "habitable_count": 1,
    "inhabited_count": 1,
    "has_gas_giant": true,
    "has_asteroid_belt": true,
    "has_horizon_station": true,
    "raw_bodies_line": "| **Bodies** | 1 habitable \u00b7 1 inhabited |"
  },
  "bodies": [
    {
      "body_id": "GJ820Bb",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 1,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.25,
      "orbital_period_days": 15,
      "rotation_period_hours": 360,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "inner scorched"
    },
    {
      "body_id": "GJ820Bg",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 2,
      "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": "GJ820Bh",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 3,
      "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": "GJ820B-belt",
      "proper_name": "Grindvik",
      "body_type": "asteroid_belt",
      "orbit_index": 4,
      "parent_body_id": null,
      "inhabited": true,
      "population": 15000000,
      "mass_class": null,
      "surface_gravity": null,
      "orbital_period_days": null,
      "rotation_period_hours": null,
      "atmosphere": null,
      "biome_summary": null,
      "hydrosphere": null,
      "economic_role": "extraction",
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "dense metallic asteroids, 580 years of industrial mining, Drevast operations"
    },
    {
      "body_id": "GJ820Bc",
      "proper_name": "Ferrath",
      "body_type": "planet",
      "orbit_index": 5,
      "parent_body_id": null,
      "inhabited": true,
      "population": 200000000,
      "mass_class": "terrestrial",
      "surface_gravity": 0.95,
      "orbital_period_days": 180,
      "rotation_period_hours": 20.5,
      "atmosphere": "breathable",
      "biome_summary": "arid",
      "hydrosphere": "rivers",
      "economic_role": "manufacturing",
      "settlement_pattern": "urban_concentrated",
      "industrial_corridor": null,
      "notes": "dense high-iron world, industrial support hubs, supply depots"
    },
    {
      "body_id": "GJ820Bc-1",
      "proper_name": null,
      "body_type": "moon",
      "orbit_index": 1,
      "parent_body_id": "GJ820Bc",
      "inhabited": false,
      "population": 0,
      "mass_class": "dwarf",
      "surface_gravity": 0.06,
      "orbital_period_days": 10.0,
      "rotation_period_hours": 240,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820Bd",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 6,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.5,
      "orbital_period_days": 400,
      "rotation_period_hours": 17.0,
      "atmosphere": "thin",
      "biome_summary": "arid",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820Be",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 7,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.42,
      "orbital_period_days": 700,
      "rotation_period_hours": 15.5,
      "atmosphere": "thin",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820Bf",
      "proper_name": null,
      "body_type": "planet",
      "orbit_index": 8,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "terrestrial",
      "surface_gravity": 0.35,
      "orbital_period_days": 1200,
      "rotation_period_hours": 19.0,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": "outer dead"
    },
    {
      "body_id": "GJ820Bg",
      "proper_name": null,
      "body_type": "gas_giant",
      "orbit_index": 9,
      "parent_body_id": null,
      "inhabited": false,
      "population": 0,
      "mass_class": "gas_giant",
      "surface_gravity": null,
      "orbital_period_days": 2800,
      "rotation_period_hours": 10.5,
      "atmosphere": "dense",
      "biome_summary": null,
      "hydrosphere": null,
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820Bg-1",
      "proper_name": null,
      "body_type": "moon",
      "orbit_index": 1,
      "parent_body_id": "GJ820Bg",
      "inhabited": false,
      "population": 0,
      "mass_class": "dwarf",
      "surface_gravity": 0.1,
      "orbital_period_days": 4.0,
      "rotation_period_hours": 96,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820Bg-2",
      "proper_name": null,
      "body_type": "moon",
      "orbit_index": 2,
      "parent_body_id": "GJ820Bg",
      "inhabited": false,
      "population": 0,
      "mass_class": "dwarf",
      "surface_gravity": 0.07,
      "orbital_period_days": 9.0,
      "rotation_period_hours": 216,
      "atmosphere": "none",
      "biome_summary": "frozen",
      "hydrosphere": "ice",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820Bg-3",
      "proper_name": null,
      "body_type": "moon",
      "orbit_index": 3,
      "parent_body_id": "GJ820Bg",
      "inhabited": false,
      "population": 0,
      "mass_class": "dwarf",
      "surface_gravity": 0.05,
      "orbital_period_days": 15.0,
      "rotation_period_hours": 360,
      "atmosphere": "none",
      "biome_summary": "barren",
      "hydrosphere": "none",
      "economic_role": null,
      "settlement_pattern": null,
      "industrial_corridor": null,
      "notes": ""
    },
    {
      "body_id": "GJ820B-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": "GJ820Bc-S1",
      "proper_name": "Kihl Works",
      "orbits_body_id": "GJ820Bc",
      "station_type": "industrial",
      "population": 1200000000,
      "economic_role": "manufacturing",
      "docking_class": "major",
      "has_gate_infrastructure": false,
      "notes": "primary shipyard complex, seven combines"
    },
    {
      "station_id": "GJ820Bc-S2",
      "proper_name": "Sturen Platforms",
      "orbits_body_id": "GJ820Bc",
      "station_type": "industrial",
      "population": 300000000,
      "economic_role": "manufacturing",
      "docking_class": "major",
      "has_gate_infrastructure": false,
      "notes": "secondary fabrication platforms"
    },
    {
      "station_id": "GJ820B-oort-S1",
      "proper_name": "Horizon Station",
      "orbits_body_id": "GJ820B-oort",
      "station_type": "horizon",
      "population": 0,
      "economic_role": "transit",
      "docking_class": "major",
      "has_gate_infrastructure": true,
      "notes": "5 apertures"
    }
  ]
}