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settled-reach/docs/atlas/proposals/GJ892.json
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jpmschweitzerandClaude Opus 4.6 db241b88bd refactor(schema): rename biome_summary to planet_class (D-188) 
"Biome" describes per-zone vegetation classification (Whittaker table).
"Planet class" describes overall planetary character. The conflation
caused the planet generator to misclassify ~270 bodies as barren.

Scope: systems.db column, schema SQL, Rust atlas code, wiki table
headers (Biome → Class), atlas proposal JSONs, all docs/decisions,
tooling scripts. Also normalizes atmosphere vocabulary (breathable →
standard) and expands planet class mapping to all 26 wiki values.
Unknown classes default to temperate for modder safety.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-06 17:10:35 +02:00

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{
"system_id": "GJ 892",
"proper_name": "Cairnside",
"star_type": "K",
"spectral_class": "K3Vvar",
"wiki_data": {
"habitable_count": 1,
"inhabited_count": 1,
"has_gas_giant": false,
"has_asteroid_belt": true,
"has_horizon_station": true,
"raw_bodies_line": null
},
"bodies": [
{
"body_id": "GJ892b",
"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": 20,
"rotation_period_hours": 480,
"atmosphere": "none",
"planet_class": "barren",
"hydrosphere": "none",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "inner rocky"
},
{
"body_id": "GJ892c",
"proper_name": null,
"body_type": "planet",
"orbit_index": 2,
"parent_body_id": null,
"inhabited": false,
"population": 0,
"mass_class": "terrestrial",
"surface_gravity": 0.55,
"orbital_period_days": 65,
"rotation_period_hours": 1560,
"atmosphere": "thin",
"planet_class": "barren",
"hydrosphere": "none",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "variable radiation zone"
},
{
"body_id": "GJ892d",
"proper_name": "Cairnside",
"body_type": "planet",
"orbit_index": 3,
"parent_body_id": null,
"inhabited": true,
"population": 80000000,
"mass_class": "terrestrial",
"surface_gravity": 0.82,
"orbital_period_days": 220,
"rotation_period_hours": 24.0,
"atmosphere": "breathable",
"planet_class": "arid",
"hydrosphere": "ice",
"economic_role": "research",
"settlement_pattern": "domed",
"industrial_corridor": null,
"notes": "variable star cycling, dome settlements, boomtown"
},
{
"body_id": "GJ892d-1",
"proper_name": "Vacuum Fatigue Station",
"body_type": "moon",
"orbit_index": 1,
"parent_body_id": "GJ892d",
"inhabited": true,
"population": 400,
"mass_class": "dwarf",
"surface_gravity": 0.05,
"orbital_period_days": 12.0,
"rotation_period_hours": 288,
"atmosphere": "none",
"planet_class": "barren",
"hydrosphere": "none",
"economic_role": "research",
"settlement_pattern": "domed",
"industrial_corridor": null,
"notes": "long-duration seal testing"
},
{
"body_id": "GJ892e",
"proper_name": "Corrosion Bench",
"body_type": "planet",
"orbit_index": 4,
"parent_body_id": null,
"inhabited": true,
"population": 600,
"mass_class": "terrestrial",
"surface_gravity": 0.45,
"orbital_period_days": 450,
"rotation_period_hours": 17.5,
"atmosphere": "thin",
"planet_class": "arid",
"hydrosphere": "none",
"economic_role": "research",
"settlement_pattern": "domed",
"industrial_corridor": null,
"notes": "thin-atmosphere chemical weathering"
},
{
"body_id": "GJ892f",
"proper_name": "Cryogenic Soak",
"body_type": "planet",
"orbit_index": 5,
"parent_body_id": null,
"inhabited": true,
"population": 300,
"mass_class": "terrestrial",
"surface_gravity": 0.38,
"orbital_period_days": 800,
"rotation_period_hours": 16.0,
"atmosphere": "none",
"planet_class": "frozen",
"hydrosphere": "ice",
"economic_role": "research",
"settlement_pattern": "domed",
"industrial_corridor": null,
"notes": "ice-contact structural integrity"
},
{
"body_id": "GJ892g",
"proper_name": null,
"body_type": "planet",
"orbit_index": 6,
"parent_body_id": null,
"inhabited": false,
"population": 0,
"mass_class": "terrestrial",
"surface_gravity": 0.32,
"orbital_period_days": 1300,
"rotation_period_hours": 19.0,
"atmosphere": "none",
"planet_class": "frozen",
"hydrosphere": "none",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer frozen"
},
{
"body_id": "GJ892h",
"proper_name": null,
"body_type": "planet",
"orbit_index": 7,
"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",
"planet_class": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer ice world"
},
{
"body_id": "GJ892-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,
"planet_class": null,
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": ""
},
{
"body_id": "GJ892-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,
"planet_class": null,
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": ""
}
],
"stations": [
{
"station_id": "GJ892b-S1",
"proper_name": "Thermal Stress Lab",
"orbits_body_id": "GJ892b",
"station_type": "research",
"population": 200,
"economic_role": "research",
"docking_class": "restricted",
"has_gate_infrastructure": false,
"notes": "extreme thermal cycling exposure"
},
{
"station_id": "GJ892c-S1",
"proper_name": "Cairnside Test Frame",
"orbits_body_id": "GJ892c",
"station_type": "research",
"population": 5000,
"economic_role": "research",
"docking_class": "restricted",
"has_gate_infrastructure": false,
"notes": "primary materials exposure, direct variable star radiation"
},
{
"station_id": "GJ892-oort-S1",
"proper_name": "Horizon Station",
"orbits_body_id": "GJ892-oort",
"station_type": "horizon",
"population": 0,
"economic_role": "transit",
"docking_class": "standard",
"has_gate_infrastructure": true,
"notes": "2 apertures, spur through Cairn"
}
]
}
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