diff --git a/docs/atlas/proposals/GJ675.json b/docs/atlas/proposals/GJ675.json
new file mode 100644
index 000000000..629e731a3
--- /dev/null
+++ b/docs/atlas/proposals/GJ675.json
@@ -0,0 +1,249 @@
+{
+  "system_id": "GJ 675",
+  "proper_name": "Neugrund",
+  "star_type": "K",
+  "spectral_class": "K0V",
+  "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": "GJ675b",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 1,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.44,
+      "orbital_period_days": 30.0,
+      "rotation_period_hours": 19.4,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "inner rocky, hot, uninhabited"
+    },
+    {
+      "body_id": "GJ675c",
+      "proper_name": "Laubach",
+      "body_type": "planet",
+      "orbit_index": 2,
+      "parent_body_id": null,
+      "inhabited": true,
+      "population": 2000,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.90,
+      "orbital_period_days": 280.0,
+      "rotation_period_hours": 26.6,
+      "atmosphere": "standard",
+      "biome_summary": "temperate",
+      "hydrosphere": "liquid_water",
+      "economic_role": "agricultural",
+      "settlement_pattern": "dispersed",
+      "industrial_corridor": null,
+      "notes": "primary inhabited world; wave_5 mixed German-Portuguese-Dutch heritage ('new ground'); 2-aperture through_route; K0V stable star; deliberate multi-corridor cultural experiment; three distinct agricultural traditions being tested under same conditions; community governance (multi-heritage, no Compact affiliation by design); three-corridor supply relationships maintained; establishment phase (food supplement imports while agricultural base matures)"
+    },
+    {
+      "body_id": "GJ675-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": "GJ675d",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 4,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.58,
+      "orbital_period_days": 720.0,
+      "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": "GJ675e",
+      "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": 2200.0,
+      "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": "GJ675e-m1",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 1,
+      "parent_body_id": "GJ675e",
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.11,
+      "orbital_period_days": 5.6,
+      "rotation_period_hours": 134.4,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "icy moon, tidally locked"
+    },
+    {
+      "body_id": "GJ675f",
+      "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": 5600.0,
+      "rotation_period_hours": 34.6,
+      "atmosphere": "trace",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer icy rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ675g",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 7,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.34,
+      "orbital_period_days": 12800.0,
+      "rotation_period_hours": 42.8,
+      "atmosphere": "trace",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "distant icy rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ675h",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 8,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.26,
+      "orbital_period_days": 28000.0,
+      "rotation_period_hours": 51.2,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "far outer icy rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ675i",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 9,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.12,
+      "orbital_period_days": 58000.0,
+      "rotation_period_hours": 29.4,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outermost dwarf, near oort boundary"
+    },
+    {
+      "body_id": "GJ675-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": "GJ675-oort-S1",
+      "proper_name": "Neugrund Horizon",
+      "orbits_body_id": "GJ675-oort",
+      "station_type": "horizon",
+      "population": 120,
+      "economic_role": "transit",
+      "docking_class": "major",
+      "has_gate_infrastructure": true,
+      "notes": "horizon station — 2 apertures; through_route; connects Altgrund and south corridor; three-corridor supply coordination; Guardian field visits (two, case-study interest)"
+    }
+  ]
+}
diff --git a/wiki/star-systems/GJ-675/index.md b/wiki/star-systems/GJ-675/index.md
index 0fb6397d2..ac16892b4 100644
--- a/wiki/star-systems/GJ-675/index.md
+++ b/wiki/star-systems/GJ-675/index.md
@@ -38,6 +38,29 @@ The practical answer is that all three heritage languages are in use and the com
 
 Neugrund's founding organizer believed that corridor monocultures were the Reach's weakness and recruited deliberately from three heritage corridors; forty years in, the food and architecture have synthesized but the governance structure is contested in ways the organizer's design documents didn't anticipate.
 
+## 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 | `GJ675b` | — | planet | no | — | terrestrial | 0.44g | 30 | 19.4 | none | barren | — | — | — | — |
+| 2 | `GJ675c` | Laubach | planet | yes | 2K | terrestrial | 0.90g | 280 | 26.6 | standard | temperate | liquid_water | agricultural | dispersed | — |
+| 3 | `GJ675-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
+| 4 | `GJ675d` | — | planet | no | — | terrestrial | 0.58g | 720 | 27.8 | thin | cold_arid | — | — | — | — |
+| 5 | `GJ675e` | — | gas_giant | no | — | — | — | 2200 | 11.4 | gas_giant | — | — | — | — | — |
+| ↳ 5.1 | `GJ675e-m1` | — | moon | no | — | dwarf | 0.11g | 6 | 134.4 | none | frozen | — | — | — | — |
+| 6 | `GJ675f` | — | planet | no | — | terrestrial | 0.44g | 5600 | 34.6 | trace | frozen | ice | — | — | — |
+| 7 | `GJ675g` | — | planet | no | — | terrestrial | 0.34g | 12800 | 42.8 | trace | frozen | ice | — | — | — |
+| 8 | `GJ675h` | — | planet | no | — | terrestrial | 0.26g | 28000 | 51.2 | none | frozen | ice | — | — | — |
+| 9 | `GJ675i` | — | planet | no | — | dwarf | 0.12g | 58000 | 29.4 | none | frozen | ice | — | — | — |
+| 10 | `GJ675-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
+
+### Stations & Facilities
+
+| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
+|---|---|---|---|---|---|---|---|---|---|
+| `GJ675-oort-S1` | Neugrund Horizon | horizon | `GJ675-oort` | 120 | transit | — | major | yes | 1 |
+
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->
 - **Hop Distance from Gateway:** 9