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data(atlas): author GJ 19 (Solheim) — 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 18:15:23 +02:00
co-authored by Claude Opus 4.6
parent 1864845ead
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docs/atlas/proposals/GJ19.json
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{
"system_id": "GJ 19",
"proper_name": "Solheim",
"star_type": "G",
"spectral_class": "G2IV",
"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": "GJ19b",
"proper_name": null,
"body_type": "planet",
"orbit_index": 1,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.54,
"orbital_period_days": 62.0,
"rotation_period_hours": 18.6,
"atmosphere": "none",
"biome_summary": "barren",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "inner rocky, hot, uninhabited"
},
{
"body_id": "GJ19c",
"proper_name": null,
"body_type": "planet",
"orbit_index": 2,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.78,
"orbital_period_days": 240.0,
"rotation_period_hours": 24.2,
"atmosphere": "thin",
"biome_summary": "hot_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "hot inner rocky, Venus-zone, uninhabited"
},
{
"body_id": "GJ19d",
"proper_name": "Solheim",
"body_type": "planet",
"orbit_index": 3,
"parent_body_id": null,
"inhabited": true,
"population": 620000,
"mass_class": "terrestrial",
"surface_gravity": 0.96,
"orbital_period_days": 750.0,
"rotation_period_hours": 25.4,
"atmosphere": "standard",
"biome_summary": "temperate",
"hydrosphere": "liquid_water",
"economic_role": "agricultural",
"settlement_pattern": "dispersed",
"industrial_corridor": "agricultural_export",
"notes": "primary inhabited world; wave_3 Norwegian heritage; 2-aperture loop_member; G2IV subgiant — bright genuine daylight, long growing seasons, field agriculture without genetic modification; western corridor's most productive agricultural system; grain, processed food, biological feedstock exports; MVG food supply contract (120-year continuous renewal); Veil Institute research station present"
},
{
"body_id": "GJ19-belt",
"proper_name": null,
"body_type": "asteroid_belt",
"orbit_index": 4,
"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": "inner asteroid belt"
},
{
"body_id": "GJ19e",
"proper_name": null,
"body_type": "planet",
"orbit_index": 5,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.64,
"orbital_period_days": 1800.0,
"rotation_period_hours": 28.6,
"atmosphere": "thin",
"biome_summary": "cold_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer rocky, uninhabited"
},
{
"body_id": "GJ19f",
"proper_name": null,
"body_type": "gas_giant",
"orbit_index": 6,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": null,
"surface_gravity": null,
"orbital_period_days": 4800.0,
"rotation_period_hours": 10.4,
"atmosphere": "gas_giant",
"biome_summary": null,
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer gas giant, two moons"
},
{
"body_id": "GJ19f-m1",
"proper_name": null,
"body_type": "moon",
"orbit_index": 1,
"parent_body_id": "GJ19f",
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.14,
"orbital_period_days": 7.2,
"rotation_period_hours": 172.8,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "icy moon, tidally locked"
},
{
"body_id": "GJ19f-m2",
"proper_name": null,
"body_type": "moon",
"orbit_index": 2,
"parent_body_id": "GJ19f",
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.09,
"orbital_period_days": 15.4,
"rotation_period_hours": 369.6,
"atmosphere": null,
"biome_summary": "barren",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "small rocky moon, tidally locked"
},
{
"body_id": "GJ19g",
"proper_name": null,
"body_type": "planet",
"orbit_index": 7,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.48,
"orbital_period_days": 12000.0,
"rotation_period_hours": 36.4,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer icy rocky, uninhabited"
},
{
"body_id": "GJ19h",
"proper_name": null,
"body_type": "planet",
"orbit_index": 8,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.38,
"orbital_period_days": 26000.0,
"rotation_period_hours": 44.8,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "distant icy rocky, uninhabited"
},
{
"body_id": "GJ19i",
"proper_name": null,
"body_type": "planet",
"orbit_index": 9,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.29,
"orbital_period_days": 52000.0,
"rotation_period_hours": 53.2,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "far outer icy rocky, uninhabited"
},
{
"body_id": "GJ19j",
"proper_name": null,
"body_type": "planet",
"orbit_index": 10,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.12,
"orbital_period_days": 96000.0,
"rotation_period_hours": 30.6,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outermost dwarf, near oort boundary"
},
{
"body_id": "GJ19-oort",
"proper_name": null,
"body_type": "oort_cloud",
"orbit_index": 11,
"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": "GJ19-oort-S1",
"proper_name": "Solheim Horizon",
"orbits_body_id": "GJ19-oort",
"station_type": "horizon",
"population": 840,
"economic_role": "transit",
"docking_class": "major",
"has_gate_infrastructure": true,
"notes": "horizon station — 2 apertures; loop_member; connects Caldwell Point and Dokkum; agricultural freight staging"
}
]
}
wiki/star-systems/GJ-19/index.md
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G2IV is a subgiant — evolved past the main sequence, with a wider habitable zone and brighter output than any main-sequence star in this corridor band. The name "Solheim" specifically references the sun-quality of this star, which would be meaningless applied to a K or M-type. The Norwegian founding heritage is consistent with the Scandinavian cultural stream in the west_reach corridor. `wave_3` settlement is correct for a system with this quality of habitable environment — the good conditions were identified early and settled deliberately. `loop_member` at hop 4 with an agricultural character makes this a supply node for the loop rather than a through-route industrial system. The MVG supply relationship extends the MVG corridor's economic reach through agricultural contracts rather than manufacturing, which is consistent with how the corridor operates in the inner hops.
## 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 | `GJ19b` | — | planet | no | — | terrestrial | 0.54g | 62 | 18.6 | none | barren | — | — | — | — |
| 2 | `GJ19c` | — | planet | no | — | terrestrial | 0.78g | 240 | 24.2 | thin | hot_arid | — | — | — | — |
| 3 | `GJ19d` | Solheim | planet | yes | 620K | terrestrial | 0.96g | 750 | 25.4 | standard | temperate | liquid_water | agricultural | dispersed | agricultural_export |
| 4 | `GJ19-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
| 5 | `GJ19e` | — | planet | no | — | terrestrial | 0.64g | 1800 | 28.6 | thin | cold_arid | — | — | — | — |
| 6 | `GJ19f` | — | gas_giant | no | — | — | — | 4800 | 10.4 | gas_giant | — | — | — | — | — |
| ↳ 6.1 | `GJ19f-m1` | — | moon | no | — | dwarf | 0.14g | 7 | 172.8 | trace | frozen | — | — | — | — |
| ↳ 6.2 | `GJ19f-m2` | — | moon | no | — | dwarf | 0.09g | 15 | 369.6 | — | barren | — | — | — | — |
| 7 | `GJ19g` | — | planet | no | — | terrestrial | 0.48g | 12000 | 36.4 | trace | frozen | ice | — | — | — |
| 8 | `GJ19h` | — | planet | no | — | terrestrial | 0.38g | 26000 | 44.8 | trace | frozen | ice | — | — | — |
| 9 | `GJ19i` | — | planet | no | — | terrestrial | 0.29g | 52000 | 53.2 | none | frozen | ice | — | — | — |
| 10 | `GJ19j` | — | planet | no | — | dwarf | 0.12g | 96000 | 30.6 | none | frozen | ice | — | — | — |
| 11 | `GJ19-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
### Stations & Facilities
| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
|---|---|---|---|---|---|---|---|---|---|
| `GJ19-oort-S1` | Solheim Horizon | horizon | `GJ19-oort` | 840 | transit | — | major | yes | 1 |
## Topology
<!-- READ-ONLY — regenerated from star-map.json edges -->
- **Hop Distance from Gateway:** 4