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settled-reach/docs/atlas/proposals/GJ402.json
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jpmschweitzerandClaude Opus 4.6 879d3168d4 data(atlas): author 7 hop-6 systems — Kelburn Crossing, Calloway Reach, Prospect Hill, Oude Kraal, Greymantle, Carnarvon, Holgersen's Landing
GJ 216A: Wairau, Kāhu, Raukawa
GJ 3325: Strathmore, Grantown, Tiree
GJ 402: Arkwright, Brindle, Standish
GJ 408: Steynplaas, Uitspan, Laaste
GJ 638: Halton, Ridley, Corbridge
GJ 680: Tulbagh, Hermanus, Elsenburg, Yzerfontein
GJ 880: Kongsberg, Leirvik, Hammerfest

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-25 21:02:16 +01:00

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{
"system_id": "GJ 402",
"proper_name": "Prospect Hill",
"star_type": "F",
"spectral_class": "M4:",
"wiki_data": {"habitable_count": 1, "inhabited_count": 1, "has_gas_giant": true, "has_asteroid_belt": true, "has_horizon_station": true, "raw_bodies_line": null},
"bodies": [
{"body_id": "GJ402b", "proper_name": null, "body_type": "planet", "orbit_index": 1, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.28, "orbital_period_days": 3, "rotation_period_hours": 72, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "inner scorched, tidally locked"},
{"body_id": "GJ402c", "proper_name": "Arkwright", "body_type": "planet", "orbit_index": 2, "parent_body_id": null, "inhabited": true, "population": 80000000, "mass_class": "terrestrial", "surface_gravity": 0.82, "orbital_period_days": 10, "rotation_period_hours": 240, "atmosphere": "breathable", "biome_summary": "arid", "hydrosphere": "minimal", "economic_role": "extraction", "settlement_pattern": "urban", "industrial_corridor": null, "notes": "primary inhabited world, tidally locked, dim M4 red light, supplemental lighting agriculture, mineral extraction industry, Wave 3 settlement with 300 years of gradual cultural formation, Community Assembly, Prospect Hill Extraction Consortium"},
{"body_id": "GJ402c-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ402c", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.04, "orbital_period_days": 4, "rotation_period_hours": 96, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "small moon"},
{"body_id": "GJ402d", "proper_name": null, "body_type": "planet", "orbit_index": 3, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.35, "orbital_period_days": 28, "rotation_period_hours": 672, "atmosphere": "thin", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "cold rocky, tidally locked"},
{"body_id": "GJ402e", "proper_name": null, "body_type": "planet", "orbit_index": 4, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.28, "orbital_period_days": 80, "rotation_period_hours": 1920, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "frozen rocky, tidally locked"},
{"body_id": "GJ402f", "proper_name": null, "body_type": "gas_giant", "orbit_index": 5, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "gas_giant", "surface_gravity": null, "orbital_period_days": 400, "rotation_period_hours": 10.0, "atmosphere": "dense", "biome_summary": null, "hydrosphere": null, "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "moderate gas giant"},
{"body_id": "GJ402f-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ402f", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.05, "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": "GJ402f-2", "proper_name": null, "body_type": "moon", "orbit_index": 2, "parent_body_id": "GJ402f", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.03, "orbital_period_days": 12, "rotation_period_hours": 288, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "icy outer gas giant moon"},
{"body_id": "GJ402g", "proper_name": null, "body_type": "planet", "orbit_index": 6, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.22, "orbital_period_days": 1500, "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": "GJ402h", "proper_name": null, "body_type": "planet", "orbit_index": 7, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.10, "orbital_period_days": 3800, "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": "GJ402-belt", "proper_name": null, "body_type": "asteroid_belt", "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": "sparse belt"},
{"body_id": "GJ402-oort", "proper_name": null, "body_type": "oort_cloud", "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": "oort cloud"}
],
"stations": [
{"station_id": "GJ402c-S1", "proper_name": "Brindle", "orbits_body_id": "GJ402c", "station_type": "industrial", "population": 5000000, "economic_role": "extraction", "docking_class": "standard", "has_gate_infrastructure": false, "notes": "Prospect Hill Extraction Consortium, mineral export staging, Junction Liaison Committee, new transit services sector"},
{"station_id": "GJ402-oort-S1", "proper_name": "Standish", "orbits_body_id": "GJ402-oort", "station_type": "horizon", "population": 0, "economic_role": "transit", "docking_class": "major", "has_gate_infrastructure": true, "notes": "horizon station, 2 apertures"}
]
}