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data(atlas): author GJ 628 (Brennan's Drift) — west_reach

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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jpmschweitzer
2026-03-29 18:20:46 +02:00
co-authored by Claude Opus 4.6
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docs/atlas/proposals/GJ628.json
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{
"system_id": "GJ 628",
"proper_name": "Brennan's Drift",
"star_type": "M",
"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": "GJ628b",
"proper_name": null,
"body_type": "planet",
"orbit_index": 1,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.30,
"orbital_period_days": 4.8,
"rotation_period_hours": 115.2,
"atmosphere": "none",
"biome_summary": "barren",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "inner scorched rocky, tidally locked"
},
{
"body_id": "GJ628c",
"proper_name": "Brennan's Drift",
"body_type": "planet",
"orbit_index": 2,
"parent_body_id": null,
"inhabited": true,
"population": 92000,
"mass_class": "terrestrial",
"surface_gravity": 0.78,
"orbital_period_days": 18.0,
"rotation_period_hours": 432.0,
"atmosphere": "standard",
"biome_summary": "temperate_terminator",
"hydrosphere": "liquid_water",
"economic_role": "mining",
"settlement_pattern": "urban_concentrated",
"industrial_corridor": "mining_refractories",
"notes": "primary inhabited world; tidally locked; wave_2 Irish founder (Cormac Brennan); 2-aperture loop_member; ore concentrates and processed metal exports; mining cooperative council governance; MVG supply contract for processed metals; 300 years of consistent extraction output"
},
{
"body_id": "GJ628-belt",
"proper_name": null,
"body_type": "asteroid_belt",
"orbit_index": 3,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": null,
"surface_gravity": null,
"orbital_period_days": null,
"rotation_period_hours": null,
"atmosphere": null,
"biome_summary": null,
"hydrosphere": null,
"economic_role": "mining",
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "mineral-rich asteroid belt; active extraction"
},
{
"body_id": "GJ628d",
"proper_name": null,
"body_type": "planet",
"orbit_index": 4,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.44,
"orbital_period_days": 95.0,
"rotation_period_hours": 21.6,
"atmosphere": "thin",
"biome_summary": "frozen",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer rocky, cold, uninhabited"
},
{
"body_id": "GJ628e",
"proper_name": null,
"body_type": "gas_giant",
"orbit_index": 5,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": null,
"surface_gravity": null,
"orbital_period_days": 380.0,
"rotation_period_hours": 12.4,
"atmosphere": "gas_giant",
"biome_summary": null,
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer gas giant, one moon"
},
{
"body_id": "GJ628e-m1",
"proper_name": null,
"body_type": "moon",
"orbit_index": 1,
"parent_body_id": "GJ628e",
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.10,
"orbital_period_days": 5.2,
"rotation_period_hours": 124.8,
"atmosphere": null,
"biome_summary": "frozen",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "small icy moon, tidally locked"
},
{
"body_id": "GJ628f",
"proper_name": null,
"body_type": "planet",
"orbit_index": 6,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.36,
"orbital_period_days": 1200.0,
"rotation_period_hours": 30.4,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer icy rocky, uninhabited"
},
{
"body_id": "GJ628g",
"proper_name": null,
"body_type": "planet",
"orbit_index": 7,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.27,
"orbital_period_days": 3200.0,
"rotation_period_hours": 38.6,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "distant icy rocky, uninhabited"
},
{
"body_id": "GJ628h",
"proper_name": null,
"body_type": "planet",
"orbit_index": 8,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.11,
"orbital_period_days": 7400.0,
"rotation_period_hours": 25.8,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outermost ice dwarf"
},
{
"body_id": "GJ628-oort",
"proper_name": null,
"body_type": "oort_cloud",
"orbit_index": 9,
"parent_body_id": null,
"inhabited": false,
"population": null,
"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": "GJ628-oort-S1",
"proper_name": "Brennan's Drift Horizon",
"orbits_body_id": "GJ628-oort",
"station_type": "horizon",
"population": 620,
"economic_role": "transit",
"docking_class": "major",
"has_gate_infrastructure": true,
"notes": "horizon station — 2 apertures; loop_member; connects Ross 154 and Neustadt; ore freight staging"
}
]
}
wiki/star-systems/GJ-628/index.md
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`wave_2` at hop 4 reflects early industrial settlement of a resource-bearing system — the M4 star was not an obstacle when the ore surveys came back positive. The Irish founding heritage is an early-arrival cross-corridor exception consistent with Wave 2 prospecting demographics, where individual prospectors of any background followed survey data rather than corridor cultural networks. "Drift" as a modifier is authentic mining vocabulary — the name is functional, which is the characteristic naming pattern of wave_2 extractive settlements. The loop member topology between Ross 154 and GJ 526 gives the system two transit connections without making it a routing hub, which is consistent with a mid-scale extractive system that is important to its immediate neighbors but not to the broader corridor.
## 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 | `GJ628b` | — | planet | no | — | terrestrial | 0.30g | 5 | 115.2 | none | barren | — | — | — | — |
| 2 | `GJ628c` | Brennan's Drift | planet | yes | 92K | terrestrial | 0.78g | 18 | 432.0 | standard | temperate_terminator | liquid_water | mining | urban_concentrated | mining_refractories |
| 3 | `GJ628-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | mining | — | — |
| 4 | `GJ628d` | — | planet | no | — | terrestrial | 0.44g | 95 | 21.6 | thin | frozen | — | — | — | — |
| 5 | `GJ628e` | — | gas_giant | no | — | — | — | 380 | 12.4 | gas_giant | — | — | — | — | — |
| ↳ 5.1 | `GJ628e-m1` | — | moon | no | — | dwarf | 0.10g | 5 | 124.8 | — | frozen | — | — | — | — |
| 6 | `GJ628f` | — | planet | no | — | terrestrial | 0.36g | 1200 | 30.4 | trace | frozen | ice | — | — | — |
| 7 | `GJ628g` | — | planet | no | — | terrestrial | 0.27g | 3200 | 38.6 | trace | frozen | ice | — | — | — |
| 8 | `GJ628h` | — | planet | no | — | dwarf | 0.11g | 7400 | 25.8 | none | frozen | ice | — | — | — |
| 9 | `GJ628-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
### Stations & Facilities
| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
|---|---|---|---|---|---|---|---|---|---|
| `GJ628-oort-S1` | Brennan's Drift Horizon | horizon | `GJ628-oort` | 620 | transit | — | major | yes | 1 |
## Topology
<!-- READ-ONLY — regenerated from star-map.json edges -->
- **Hop Distance from Gateway:** 4