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data(atlas): author GJ 502 (Meridian) — 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 08:42:05 +02:00
co-authored by Claude Opus 4.6
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docs/atlas/proposals/GJ502.json
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{
"system_id": "GJ 502",
"proper_name": "Meridian",
"star_type": "G",
"spectral_class": "G0V",
"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": "GJ502b",
"proper_name": null,
"body_type": "planet",
"orbit_index": 1,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.52,
"orbital_period_days": 48.0,
"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": "GJ502c",
"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": 160.0,
"rotation_period_hours": 25.4,
"atmosphere": "thin",
"biome_summary": "hot_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "hot inner rocky, desiccated, uninhabited"
},
{
"body_id": "GJ502d",
"proper_name": "Iter",
"body_type": "planet",
"orbit_index": 3,
"parent_body_id": null,
"inhabited": true,
"population": 180000000,
"mass_class": "terrestrial",
"surface_gravity": 0.96,
"orbital_period_days": 390.0,
"rotation_period_hours": 24.6,
"atmosphere": "standard",
"biome_summary": "temperate",
"hydrosphere": "liquid_water",
"economic_role": "transit",
"settlement_pattern": "urban_concentrated",
"industrial_corridor": "logistics",
"notes": "primary inhabited world; wave_3 consortium founding (abstract naming); G0V warm temperate conditions; 3-aperture junction; single chokepoint between Hansestadt and Freiholt; transit authority governance under structural political pressure; Assembly/Compact organizational boundary"
},
{
"body_id": "GJ502-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": "sparse asteroid belt"
},
{
"body_id": "GJ502e",
"proper_name": null,
"body_type": "planet",
"orbit_index": 5,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.62,
"orbital_period_days": 1050.0,
"rotation_period_hours": 27.8,
"atmosphere": "thin",
"biome_summary": "cold_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer rocky, uninhabited"
},
{
"body_id": "GJ502f",
"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": 3200.0,
"rotation_period_hours": 11.2,
"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": "GJ502f-m1",
"proper_name": null,
"body_type": "moon",
"orbit_index": 1,
"parent_body_id": "GJ502f",
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.14,
"orbital_period_days": 6.8,
"rotation_period_hours": 163.2,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "icy moon, tidally locked"
},
{
"body_id": "GJ502f-m2",
"proper_name": null,
"body_type": "moon",
"orbit_index": 2,
"parent_body_id": "GJ502f",
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.09,
"orbital_period_days": 14.6,
"rotation_period_hours": 350.4,
"atmosphere": null,
"biome_summary": "barren",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "small rocky moon, tidally locked"
},
{
"body_id": "GJ502g",
"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": 8200.0,
"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": "GJ502h",
"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": 17600.0,
"rotation_period_hours": 44.2,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "distant icy rocky, uninhabited"
},
{
"body_id": "GJ502i",
"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": 36000.0,
"rotation_period_hours": 52.8,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "far outer icy rocky, uninhabited"
},
{
"body_id": "GJ502j",
"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": 66000.0,
"rotation_period_hours": 30.4,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outermost dwarf, near oort boundary"
},
{
"body_id": "GJ502-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": "GJ502-oort-S1",
"proper_name": "Meridian Horizon",
"orbits_body_id": "GJ502-oort",
"station_type": "horizon",
"population": 4600,
"economic_role": "transit",
"docking_class": "major",
"has_gate_infrastructure": true,
"notes": "horizon station — 3 apertures; junction; connects Hansestadt, Freiholt, and Pereira's Rest"
},
{
"station_id": "GJ502d-S1",
"proper_name": "Nodus",
"orbits_body_id": "GJ502d",
"station_type": "commercial",
"population": 12000,
"economic_role": "transit",
"docking_class": "major",
"has_gate_infrastructure": false,
"notes": "Gate Corporation junction scheduling operations; three-aperture coordination; the chokepoint desk — all traffic between Assembly hub and Compact signatories crosses here"
},
{
"station_id": "GJ502d-S2",
"proper_name": "Praesidium",
"orbits_body_id": "GJ502d",
"station_type": "commercial",
"population": 3800,
"economic_role": "commercial",
"docking_class": "standard",
"has_gate_infrastructure": false,
"notes": "Assembly west_reach delegation resident office; diplomatic and commercial registration services; observer status in transit authority proceedings"
}
]
}
wiki/star-systems/GJ-502/index.md
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`wave_3` settlement is consistent with a deliberate siting by a logistics consortium that understood the junction value early. The G0V star producing good conditions explains why the system developed into a real population center rather than a bare transit node. `junction` topology with three gates is structurally accurate to the role. The name "Meridian" is in the Reach's tradition of abstract/aspirational names (alongside Renaissance, Gateway) and does not require cultural heritage explanation — it is a Wave 3 consortium founding name, not a cultural transplant. The political tension is inherent to the topology; no additional invention is needed to explain why this system is under pressure.
## 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 | `GJ502b` | — | planet | no | — | terrestrial | 0.52g | 48 | 18.4 | none | barren | — | — | — | — |
| 2 | `GJ502c` | — | planet | no | — | terrestrial | 0.78g | 160 | 25.4 | thin | hot_arid | — | — | — | — |
| 3 | `GJ502d` | Iter | planet | yes | 180M | terrestrial | 0.96g | 390 | 24.6 | standard | temperate | liquid_water | transit | urban_concentrated | logistics |
| 4 | `GJ502-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
| 5 | `GJ502e` | — | planet | no | — | terrestrial | 0.62g | 1050 | 27.8 | thin | cold_arid | — | — | — | — |
| 6 | `GJ502f` | — | gas_giant | no | — | — | — | 3200 | 11.2 | gas_giant | — | — | — | — | — |
| ↳ 6.1 | `GJ502f-m1` | — | moon | no | — | dwarf | 0.14g | 7 | 163.2 | trace | frozen | — | — | — | — |
| ↳ 6.2 | `GJ502f-m2` | — | moon | no | — | dwarf | 0.09g | 15 | 350.4 | — | barren | — | — | — | — |
| 7 | `GJ502g` | — | planet | no | — | terrestrial | 0.48g | 8200 | 36.4 | trace | frozen | ice | — | — | — |
| 8 | `GJ502h` | — | planet | no | — | terrestrial | 0.38g | 17600 | 44.2 | trace | frozen | ice | — | — | — |
| 9 | `GJ502i` | — | planet | no | — | terrestrial | 0.29g | 36000 | 52.8 | none | frozen | ice | — | — | — |
| 10 | `GJ502j` | — | planet | no | — | dwarf | 0.12g | 66000 | 30.4 | none | frozen | ice | — | — | — |
| 11 | `GJ502-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
### Stations & Facilities
| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
|---|---|---|---|---|---|---|---|---|---|
| `GJ502-oort-S1` | Meridian Horizon | horizon | `GJ502-oort` | 4K | transit | — | major | yes | 1 |
| `GJ502d-S1` | Nodus | commercial | `GJ502d` | 12K | transit | — | major | no | 1 |
| `GJ502d-S2` | Praesidium | commercial | `GJ502d` | 3K | commercial | — | standard | no | 1 |
## Topology
<!-- READ-ONLY — regenerated from star-map.json edges -->
- **Hop Distance from Gateway:** 6