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settled-reach/docs/atlas/proposals/GJ71.json
T
jpmschweitzerandClaude Opus 4.6 37ba7042a8 data(atlas): add missing planets and asteroid belts to 40 proposals 
Systems below the minimum planet count for their spectral class now
have outer ice/frozen worlds added. Systems missing asteroid belts
have a sparse outer belt inserted. Orbit indices renumbered to stay
monotonic after insertions.

Remaining 5 verify errors are unnamed stations/bodies (content decisions).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 08:30:30 +01:00

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{
"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"
}
]
}
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