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data(atlas): author Nkosi's Bridge (GJ 473B) — Nongoma, Sodwana, Kosi

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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jpmschweitzer
2026-03-25 17:05:05 +01:00
co-authored by Claude Opus 4.6
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docs/atlas/proposals/GJ473B.json
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{
"system_id": "GJ 473B",
"proper_name": "Nkosi's Bridge",
"star_type": "K",
"spectral_class": "M7",
"wiki_data": {
"habitable_count": 0,
"inhabited_count": 0,
"has_gas_giant": true,
"has_asteroid_belt": true,
"has_horizon_station": true,
"raw_bodies_line": null
},
"bodies": [
{"body_id": "GJ473Bb", "proper_name": null, "body_type": "planet", "orbit_index": 1, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.22, "orbital_period_days": 1.5, "rotation_period_hours": 36, "atmosphere": "none", "biome_summary": "barren", "hydrosphere": "none", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "inner scorched, tidally locked"},
{"body_id": "GJ473Bc", "proper_name": null, "body_type": "planet", "orbit_index": 2, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.38, "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": "rocky, tidally locked, station anchor point"},
{"body_id": "GJ473Bd", "proper_name": null, "body_type": "planet", "orbit_index": 3, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.32, "orbital_period_days": 10, "rotation_period_hours": 240, "atmosphere": "thin", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "cold rocky"},
{"body_id": "GJ473Be", "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": 40, "rotation_period_hours": 960, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "frozen rocky"},
{"body_id": "GJ473Bf", "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": 250, "rotation_period_hours": 9.5, "atmosphere": "dense", "biome_summary": null, "hydrosphere": null, "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "moderate gas giant"},
{"body_id": "GJ473Bf-1", "proper_name": null, "body_type": "moon", "orbit_index": 1, "parent_body_id": "GJ473Bf", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.05, "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": "inner gas giant moon"},
{"body_id": "GJ473Bf-2", "proper_name": null, "body_type": "moon", "orbit_index": 2, "parent_body_id": "GJ473Bf", "inhabited": false, "population": 0, "mass_class": "dwarf", "surface_gravity": 0.03, "orbital_period_days": 10, "rotation_period_hours": 240, "atmosphere": "none", "biome_summary": "frozen", "hydrosphere": "ice", "economic_role": null, "settlement_pattern": null, "industrial_corridor": null, "notes": "icy outer gas giant moon"},
{"body_id": "GJ473Bg", "proper_name": null, "body_type": "planet", "orbit_index": 6, "parent_body_id": null, "inhabited": false, "population": 0, "mass_class": "terrestrial", "surface_gravity": 0.20, "orbital_period_days": 1300, "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": "GJ473Bh", "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": 3700, "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": "GJ473B-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 outer belt"},
{"body_id": "GJ473B-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": "GJ473Bc-S1", "proper_name": "Nongoma", "orbits_body_id": "GJ473Bc", "station_type": "commercial", "population": 200000000, "economic_role": "transit", "docking_class": "major", "has_gate_infrastructure": false, "notes": "primary transit hub, freight brokerage center, Nkosi Transit & Cargo HQ, Tanegashima fabrication liaison offices, Assembly customs office, larger than Pemberton's Loop"},
{"station_id": "GJ473Be-S1", "proper_name": "Sodwana", "orbits_body_id": "GJ473Be", "station_type": "research", "population": 500, "economic_role": "research", "docking_class": "restricted", "has_gate_infrastructure": false, "notes": "research shelter, planetary survey outpost"},
{"station_id": "GJ473B-oort-S1", "proper_name": "Kosi", "orbits_body_id": "GJ473B-oort", "station_type": "horizon", "population": 0, "economic_role": "transit", "docking_class": "major", "has_gate_infrastructure": true, "notes": "horizon station, 2 apertures"}
]
}
wiki/star-systems/GJ-473B/index.md
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## Calibration Note
The star classification in the DB (M7) differs from the K-type header designation — this reflects the header using a classification tier rather than the precise spectral subtype. M7 is an unusually cool star for a settled system; the settlement's viability derives entirely from its transit position rather than stellar properties. Wave_2 loop_member is internally consistent.
## Celestial Bodies
<!-- READ-ONLY — generated from systems.db bodies/stations tables -->
| Orbit | ID | Name | Type | Inhabited | Pop | Mass | Gravity | Year (d) | Day (h) | Atmo | Biome | Hydro | Economy | Settlement | Industrial |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | `GJ473Bb` | — | planet | no | — | terrestrial | 0.22g | 2 | 36.0 | none | barren | none | — | — | — |
| 2 | `GJ473Bc` | — | planet | no | — | terrestrial | 0.38g | 4 | 96.0 | none | barren | none | — | — | — |
| 3 | `GJ473Bd` | — | planet | no | — | terrestrial | 0.32g | 10 | 240.0 | thin | frozen | ice | — | — | — |
| 4 | `GJ473Be` | — | planet | no | — | terrestrial | 0.28g | 40 | 960.0 | none | frozen | ice | — | — | — |
| 5 | `GJ473Bf` | — | gas_giant | no | — | gas_giant | — | 250 | 9.5 | dense | — | — | — | — | — |
| ↳ 5.1 | `GJ473Bf-1` | — | moon | no | — | dwarf | 0.05g | 4 | 96.0 | none | barren | none | — | — | — |
| ↳ 5.2 | `GJ473Bf-2` | — | moon | no | — | dwarf | 0.03g | 10 | 240.0 | none | frozen | ice | — | — | — |
| 6 | `GJ473Bg` | — | planet | no | — | terrestrial | 0.20g | 1300 | 18.0 | none | frozen | ice | — | — | — |
| 7 | `GJ473Bh` | — | planet | no | — | dwarf | 0.12g | 3700 | 22.0 | none | frozen | ice | — | — | — |
| 8 | `GJ473B-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
| 9 | `GJ473B-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
### Stations & Facilities
| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
|---|---|---|---|---|---|---|---|---|---|
| `GJ473B-oort-S1` | Kosi | horizon | `GJ473B-oort` | — | transit | — | major | yes | 1 |
| `GJ473Bc-S1` | Nongoma | commercial | `GJ473Bc` | 200M | transit | — | major | no | 1 |
| `GJ473Be-S1` | Sodwana | research | `GJ473Be` | 500 | research | — | restricted | no | 1 |