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settled-reach/docs/atlas/proposals/GJ820B.json
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jpmschweitzerandClaude Opus 4.6 e05444f708 data(atlas): complete hop-2 body catalogs + corporations table 
Hop-2 systems authored: Tessera/Corvel (legal archive, 1.3B),
Proxima/Ancora (first colony, Zheng He lore, 400M),
Meridian/Provenance (boomtown, 150M), Barnard's Star/Verada
(commuter town, 2B, wiki prose adjusted for surface-majority pop),
Prometheus/Galen+Chiron+Site Anterior (longevity monopoly, 55K),
Cygni B/Ferrath+Kihl Works (shipyards, 1.8B, 7 combines named),
Cairn (the anomaly — 7 apertures, 2 garden planets, zero population).

New: corporations table in systems.db schema. 20 records populated
from wiki/corporations/ + DSMC + 7 Cygni B combines (Vethara,
Kossler-Drun, Amberan Works, Talavec & Sons, Orren-Skel, Marhoud
Fabrication, Drevast Extraction).

Atlas CLI: fixed planet count defaults (6-8 minimum per star type,
was 2-4). Miri added Zheng He lore to Proxima wiki.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-24 23:23:12 +01:00

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{
"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 · 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": "GJ820B-belt",
"proper_name": null,
"body_type": "asteroid_belt",
"orbit_index": 2,
"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": 3,
"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": 4,
"parent_body_id": null,
"inhabited": false,
"population": 0,
"mass_class": "terrestrial",
"surface_gravity": 0.50,
"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": 5,
"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": 6,
"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": 7,
"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": 0.10,
"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": 8,
"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": null,
"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"
}
]
}
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