diff --git a/docs/atlas/proposals/GJ848.json b/docs/atlas/proposals/GJ848.json
new file mode 100644
index 000000000..246502f38
--- /dev/null
+++ b/docs/atlas/proposals/GJ848.json
@@ -0,0 +1,309 @@
+{
+  "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"
+    }
+  ]
+}
diff --git a/wiki/star-systems/GJ-848/index.md b/wiki/star-systems/GJ-848/index.md
index f92ce8d4f..c50078137 100644
--- a/wiki/star-systems/GJ-848/index.md
+++ b/wiki/star-systems/GJ-848/index.md
@@ -62,6 +62,32 @@ F-type star at hop 8 in the east_reach is unusual and is treated as the system's
 
 ---
 
+## 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