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data(atlas): author GJ 320 (Sonnwend) — west_reach

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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jpmschweitzer
2026-03-30 09:35:24 +02:00
co-authored by Claude Opus 4.6
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docs/atlas/proposals/GJ320.json
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{
"system_id": "GJ 320",
"proper_name": "Sonnwend",
"star_type": "K",
"spectral_class": "K2V",
"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": "GJ320b",
"proper_name": null,
"body_type": "planet",
"orbit_index": 1,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.42,
"orbital_period_days": 20.0,
"rotation_period_hours": 18.4,
"atmosphere": "none",
"biome_summary": "barren",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "inner rocky, hot, uninhabited"
},
{
"body_id": "GJ320c",
"proper_name": "Wend",
"body_type": "planet",
"orbit_index": 2,
"parent_body_id": null,
"inhabited": true,
"population": 65000000,
"mass_class": "terrestrial",
"surface_gravity": 0.90,
"orbital_period_days": 200.0,
"rotation_period_hours": 26.8,
"atmosphere": "standard",
"biome_summary": "temperate",
"hydrosphere": "liquid_water",
"economic_role": "agricultural",
"settlement_pattern": "dispersed",
"industrial_corridor": "agricultural_export",
"notes": "primary inhabited world; wave_3 German heritage; 2-aperture spur_end; K2V open-field agriculture without greenhouse enclosure; Compact of Westphalia agricultural heartland; cooperative republic governance; elected governor (five-year terms); food surplus feeds outer corridor; charter prohibits extraction contracts on agricultural land"
},
{
"body_id": "GJ320-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": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "sparse asteroid belt"
},
{
"body_id": "GJ320d",
"proper_name": null,
"body_type": "planet",
"orbit_index": 4,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.56,
"orbital_period_days": 640.0,
"rotation_period_hours": 28.2,
"atmosphere": "thin",
"biome_summary": "cold_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer rocky, uninhabited"
},
{
"body_id": "GJ320e",
"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": 2000.0,
"rotation_period_hours": 11.4,
"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": "GJ320e-m1",
"proper_name": null,
"body_type": "moon",
"orbit_index": 1,
"parent_body_id": "GJ320e",
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.12,
"orbital_period_days": 5.6,
"rotation_period_hours": 134.4,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "icy moon, tidally locked"
},
{
"body_id": "GJ320f",
"proper_name": null,
"body_type": "planet",
"orbit_index": 6,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.44,
"orbital_period_days": 5200.0,
"rotation_period_hours": 34.8,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer icy rocky, uninhabited"
},
{
"body_id": "GJ320g",
"proper_name": null,
"body_type": "planet",
"orbit_index": 7,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.35,
"orbital_period_days": 11800.0,
"rotation_period_hours": 42.6,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "distant icy rocky, uninhabited"
},
{
"body_id": "GJ320h",
"proper_name": null,
"body_type": "planet",
"orbit_index": 8,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.27,
"orbital_period_days": 24000.0,
"rotation_period_hours": 51.4,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "far outer icy rocky, uninhabited"
},
{
"body_id": "GJ320i",
"proper_name": null,
"body_type": "planet",
"orbit_index": 9,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.11,
"orbital_period_days": 48000.0,
"rotation_period_hours": 29.6,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outermost dwarf, near oort boundary"
},
{
"body_id": "GJ320-oort",
"proper_name": null,
"body_type": "oort_cloud",
"orbit_index": 10,
"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": "GJ320-oort-S1",
"proper_name": "Sonnwend Horizon",
"orbits_body_id": "GJ320-oort",
"station_type": "horizon",
"population": 720,
"economic_role": "transit",
"docking_class": "major",
"has_gate_infrastructure": true,
"notes": "horizon station — 2 apertures; spur_end; connects Rana and Brückenau; agricultural freight staging"
},
{
"station_id": "GJ320c-S1",
"proper_name": "Kornhaus",
"orbits_body_id": "GJ320c",
"station_type": "agricultural",
"population": 4200,
"economic_role": "agricultural",
"docking_class": "major",
"has_gate_infrastructure": false,
"notes": "cooperative agricultural exchange and cold-storage freight facility; bulk grain, preserved root crops, dried protein legumes; Compact supply coordination staging"
}
]
}
wiki/star-systems/GJ-320/index.md
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`wave_3` at hop 7 with a spur_end topology is consistent with deliberate agricultural settlement following the discovery that this particular K2V star hosted a genuinely habitable world — wave_3 settlers followed the agricultural potential the survey identified. The K2V classification is accurate. `spur_end` with two gates is accurate to the profile: one connection inward through Rana, one outward to GJ 798. The German name "Sonnwend" communicates the agricultural-solar significance without being an Earth place-name.
## 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 | `GJ320b` | — | planet | no | — | terrestrial | 0.42g | 20 | 18.4 | none | barren | — | — | — | — |
| 2 | `GJ320c` | Wend | planet | yes | 65M | terrestrial | 0.90g | 200 | 26.8 | standard | temperate | liquid_water | agricultural | dispersed | agricultural_export |
| 3 | `GJ320-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
| 4 | `GJ320d` | — | planet | no | — | terrestrial | 0.56g | 640 | 28.2 | thin | cold_arid | — | — | — | — |
| 5 | `GJ320e` | — | gas_giant | no | — | — | — | 2000 | 11.4 | gas_giant | — | — | — | — | — |
| ↳ 5.1 | `GJ320e-m1` | — | moon | no | — | dwarf | 0.12g | 6 | 134.4 | trace | frozen | — | — | — | — |
| 6 | `GJ320f` | — | planet | no | — | terrestrial | 0.44g | 5200 | 34.8 | trace | frozen | ice | — | — | — |
| 7 | `GJ320g` | — | planet | no | — | terrestrial | 0.35g | 11800 | 42.6 | trace | frozen | ice | — | — | — |
| 8 | `GJ320h` | — | planet | no | — | terrestrial | 0.27g | 24000 | 51.4 | none | frozen | ice | — | — | — |
| 9 | `GJ320i` | — | planet | no | — | dwarf | 0.11g | 48000 | 29.6 | none | frozen | ice | — | — | — |
| 10 | `GJ320-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
### Stations & Facilities
| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
|---|---|---|---|---|---|---|---|---|---|
| `GJ320-oort-S1` | Sonnwend Horizon | horizon | `GJ320-oort` | 720 | transit | — | major | yes | 1 |
| `GJ320c-S1` | Kornhaus | agricultural | `GJ320c` | 4K | agricultural | — | major | no | 1 |
## Topology
<!-- READ-ONLY — regenerated from star-map.json edges -->
- **Hop Distance from Gateway:** 7