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data(atlas): author GJ 848 (Shimanami) — east_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 17:22:38 +02:00
co-authored by Claude Opus 4.6
parent 7a29325f90
commit 0091f69753
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docs/atlas/proposals/GJ848.json
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{
"system_id": "GJ 848",
"proper_name": "Shimanami",
"star_type": "F",
"spectral_class": "F5V",
"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": "GJ848b",
"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": 68.0,
"rotation_period_hours": 17.6,
"atmosphere": "none",
"biome_summary": "barren",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "inner rocky, hot, uninhabited"
},
{
"body_id": "GJ848c",
"proper_name": null,
"body_type": "planet",
"orbit_index": 2,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.76,
"orbital_period_days": 260.0,
"rotation_period_hours": 23.4,
"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": "GJ848d",
"proper_name": null,
"body_type": "planet",
"orbit_index": 3,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.82,
"orbital_period_days": 520.0,
"rotation_period_hours": 26.8,
"atmosphere": "standard",
"biome_summary": "hot_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "inner hot zone, warm rocky, uninhabited"
},
{
"body_id": "GJ848e",
"proper_name": "Shimanami Main",
"body_type": "planet",
"orbit_index": 4,
"parent_body_id": null,
"inhabited": true,
"population": 48000,
"mass_class": "terrestrial",
"surface_gravity": 0.94,
"orbital_period_days": 800.0,
"rotation_period_hours": 24.2,
"atmosphere": "standard",
"biome_summary": "temperate",
"hydrosphere": "liquid_water",
"economic_role": "mining",
"settlement_pattern": "urban_concentrated",
"industrial_corridor": "mining_refractories",
"notes": "primary inhabited world; wave_3 Japanese heritage (Oshima extraction origin); 2-aperture through_route; F5V genuine daylight; rare-earth mineral extraction; Naminato primary settlement (Japanese-Vietnamese bilingual); Transit Cooperative controls gate scheduling; Oshima administrative charter (extraction-era instrument, never updated for permanent population)"
},
{
"body_id": "GJ848-belt",
"proper_name": null,
"body_type": "asteroid_belt",
"orbit_index": 5,
"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": "rare-earth mineral belt; active extraction under Oshima charter"
},
{
"body_id": "GJ848f",
"proper_name": null,
"body_type": "planet",
"orbit_index": 6,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.62,
"orbital_period_days": 1800.0,
"rotation_period_hours": 28.4,
"atmosphere": "thin",
"biome_summary": "cold_arid",
"hydrosphere": null,
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer rocky, uninhabited"
},
{
"body_id": "GJ848g",
"proper_name": null,
"body_type": "gas_giant",
"orbit_index": 7,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": null,
"surface_gravity": null,
"orbital_period_days": 5200.0,
"rotation_period_hours": 10.2,
"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": "GJ848g-m1",
"proper_name": null,
"body_type": "moon",
"orbit_index": 1,
"parent_body_id": "GJ848g",
"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": "GJ848g-m2",
"proper_name": null,
"body_type": "moon",
"orbit_index": 2,
"parent_body_id": "GJ848g",
"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": "GJ848h",
"proper_name": null,
"body_type": "planet",
"orbit_index": 8,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.48,
"orbital_period_days": 13000.0,
"rotation_period_hours": 36.2,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outer icy rocky, uninhabited"
},
{
"body_id": "GJ848i",
"proper_name": null,
"body_type": "planet",
"orbit_index": 9,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.38,
"orbital_period_days": 28000.0,
"rotation_period_hours": 44.6,
"atmosphere": "trace",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "distant icy rocky, uninhabited"
},
{
"body_id": "GJ848j",
"proper_name": null,
"body_type": "planet",
"orbit_index": 10,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "terrestrial",
"surface_gravity": 0.29,
"orbital_period_days": 52000.0,
"rotation_period_hours": 53.4,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "far outer icy rocky, uninhabited"
},
{
"body_id": "GJ848k",
"proper_name": null,
"body_type": "planet",
"orbit_index": 11,
"parent_body_id": null,
"inhabited": false,
"population": null,
"mass_class": "dwarf",
"surface_gravity": 0.12,
"orbital_period_days": 92000.0,
"rotation_period_hours": 30.8,
"atmosphere": "none",
"biome_summary": "frozen",
"hydrosphere": "ice",
"economic_role": null,
"settlement_pattern": null,
"industrial_corridor": null,
"notes": "outermost dwarf, near oort boundary"
},
{
"body_id": "GJ848-oort",
"proper_name": null,
"body_type": "oort_cloud",
"orbit_index": 12,
"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": "GJ848-oort-S1",
"proper_name": "Shimanami Horizon",
"orbits_body_id": "GJ848-oort",
"station_type": "horizon",
"population": 520,
"economic_role": "transit",
"docking_class": "major",
"has_gate_infrastructure": true,
"notes": "horizon station — 2 apertures; through_route; connects Oshima and Dài Lộ; Transit Cooperative manages scheduling"
}
]
}
wiki/star-systems/GJ-848/index.md
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---
## 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 | `GJ848b` | — | planet | no | — | terrestrial | 0.54g | 68 | 17.6 | none | barren | — | — | — | — |
| 2 | `GJ848c` | — | planet | no | — | terrestrial | 0.76g | 260 | 23.4 | thin | hot_arid | — | — | — | — |
| 3 | `GJ848d` | — | planet | no | — | terrestrial | 0.82g | 520 | 26.8 | standard | hot_arid | — | — | — | — |
| 4 | `GJ848e` | Shimanami Main | planet | yes | 48K | terrestrial | 0.94g | 800 | 24.2 | standard | temperate | liquid_water | mining | urban_concentrated | mining_refractories |
| 5 | `GJ848-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | mining | — | — |
| 6 | `GJ848f` | — | planet | no | — | terrestrial | 0.62g | 1800 | 28.4 | thin | cold_arid | — | — | — | — |
| 7 | `GJ848g` | — | gas_giant | no | — | — | — | 5200 | 10.2 | gas_giant | — | — | — | — | — |
| ↳ 7.1 | `GJ848g-m1` | — | moon | no | — | dwarf | 0.14g | 7 | 172.8 | trace | frozen | — | — | — | — |
| ↳ 7.2 | `GJ848g-m2` | — | moon | no | — | dwarf | 0.09g | 15 | 369.6 | — | barren | — | — | — | — |
| 8 | `GJ848h` | — | planet | no | — | terrestrial | 0.48g | 13000 | 36.2 | trace | frozen | ice | — | — | — |
| 9 | `GJ848i` | — | planet | no | — | terrestrial | 0.38g | 28000 | 44.6 | trace | frozen | ice | — | — | — |
| 10 | `GJ848j` | — | planet | no | — | terrestrial | 0.29g | 52000 | 53.4 | none | frozen | ice | — | — | — |
| 11 | `GJ848k` | — | planet | no | — | dwarf | 0.12g | 92000 | 30.8 | none | frozen | ice | — | — | — |
| 12 | `GJ848-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
### Stations & Facilities
| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
|---|---|---|---|---|---|---|---|---|---|
| `GJ848-oort-S1` | Shimanami Horizon | horizon | `GJ848-oort` | 520 | transit | — | major | yes | 1 |
## Topology
<!-- READ-ONLY — regenerated from star-map.json edges -->
- **Hop Distance from Gateway:** 8