diff --git a/docs/atlas/proposals/GJ661B.json b/docs/atlas/proposals/GJ661B.json
new file mode 100644
index 000000000..e30f633b7
--- /dev/null
+++ b/docs/atlas/proposals/GJ661B.json
@@ -0,0 +1,289 @@
+{
+  "system_id": "GJ 661B",
+  "proper_name": "Breëvlei",
+  "star_type": "F",
+  "spectral_class": "F7V",
+  "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": "GJ661Bb",
+      "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": 68.0,
+      "rotation_period_hours": 17.8,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "inner rocky, hot, uninhabited"
+    },
+    {
+      "body_id": "GJ661Bc",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 2,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.74,
+      "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": "inner rocky, desiccated, uninhabited"
+    },
+    {
+      "body_id": "GJ661Bd",
+      "proper_name": "Velddrif",
+      "body_type": "planet",
+      "orbit_index": 3,
+      "parent_body_id": null,
+      "inhabited": true,
+      "population": 3500,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.92,
+      "orbital_period_days": 620.0,
+      "rotation_period_hours": 27.2,
+      "atmosphere": "standard",
+      "biome_summary": "temperate",
+      "hydrosphere": "liquid_water",
+      "economic_role": "agricultural",
+      "settlement_pattern": "dispersed",
+      "industrial_corridor": null,
+      "notes": "primary inhabited world; wave_5 Afrikaans heritage ('field ford'); 2-aperture through_route; F7V blue-white bright star — sharp light, settlers adapted; broad tidal lowlands and marsh; settlement on tidal shelf zones; agriculture growing but not yet exportable surplus; settlement council governance (consensus-based); Commission visits infrequently; undeveloped marsh lowlands under ongoing debate"
+    },
+    {
+      "body_id": "GJ661B-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": "GJ661Be",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 5,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.64,
+      "orbital_period_days": 1400.0,
+      "rotation_period_hours": 26.8,
+      "atmosphere": "thin",
+      "biome_summary": "cold_arid",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ661Bf",
+      "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": 4600.0,
+      "rotation_period_hours": 10.4,
+      "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": "GJ661Bf-m1",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 1,
+      "parent_body_id": "GJ661Bf",
+      "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": "GJ661Bf-m2",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 2,
+      "parent_body_id": "GJ661Bf",
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.08,
+      "orbital_period_days": 16.4,
+      "rotation_period_hours": 393.6,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "small rocky moon, tidally locked"
+    },
+    {
+      "body_id": "GJ661Bg",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 7,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.46,
+      "orbital_period_days": 11000.0,
+      "rotation_period_hours": 35.6,
+      "atmosphere": "trace",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer icy rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ661Bh",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 8,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.36,
+      "orbital_period_days": 26000.0,
+      "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": "GJ661Bi",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 9,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.28,
+      "orbital_period_days": 54000.0,
+      "rotation_period_hours": 52.4,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "far outer icy rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ661Bj",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 10,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.13,
+      "orbital_period_days": 110000.0,
+      "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": "GJ661B-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": "GJ661B-oort-S1",
+      "proper_name": "Breëvlei Horizon",
+      "orbits_body_id": "GJ661B-oort",
+      "station_type": "horizon",
+      "population": 120,
+      "economic_role": "transit",
+      "docking_class": "major",
+      "has_gate_infrastructure": true,
+      "notes": "horizon station — 2 apertures; through_route; connects Waterkant and Stilwater; Cairn pocket chain relay; Commission nominal authority"
+    }
+  ]
+}
diff --git a/wiki/star-systems/GJ-661B/index.md b/wiki/star-systems/GJ-661B/index.md
index 018f2ea65..a6a27ea86 100644
--- a/wiki/star-systems/GJ-661B/index.md
+++ b/wiki/star-systems/GJ-661B/index.md
@@ -40,6 +40,31 @@ Settlers have begun finding weathered marker stakes in the deep marsh — not re
 
 Wave_5 on a through_route at hop 6 is consistent with incremental corridor extension; Breëvlei is a relay point being settled ahead of the infrastructure fully arriving.
 
+## 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 | `GJ661Bb` | — | planet | no | — | terrestrial | 0.52g | 68 | 17.8 | none | barren | — | — | — | — |
+| 2 | `GJ661Bc` | — | planet | no | — | terrestrial | 0.74g | 260 | 23.4 | thin | hot_arid | — | — | — | — |
+| 3 | `GJ661Bd` | Velddrif | planet | yes | 3K | terrestrial | 0.92g | 620 | 27.2 | standard | temperate | liquid_water | agricultural | dispersed | — |
+| 4 | `GJ661B-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
+| 5 | `GJ661Be` | — | planet | no | — | terrestrial | 0.64g | 1400 | 26.8 | thin | cold_arid | — | — | — | — |
+| 6 | `GJ661Bf` | — | gas_giant | no | — | — | — | 4600 | 10.4 | gas_giant | — | — | — | — | — |
+| ↳ 6.1 | `GJ661Bf-m1` | — | moon | no | — | dwarf | 0.14g | 7 | 172.8 | trace | frozen | — | — | — | — |
+| ↳ 6.2 | `GJ661Bf-m2` | — | moon | no | — | dwarf | 0.08g | 16 | 393.6 | none | barren | — | — | — | — |
+| 7 | `GJ661Bg` | — | planet | no | — | terrestrial | 0.46g | 11000 | 35.6 | trace | frozen | ice | — | — | — |
+| 8 | `GJ661Bh` | — | planet | no | — | terrestrial | 0.36g | 26000 | 44.2 | trace | frozen | ice | — | — | — |
+| 9 | `GJ661Bi` | — | planet | no | — | terrestrial | 0.28g | 54000 | 52.4 | none | frozen | ice | — | — | — |
+| 10 | `GJ661Bj` | — | planet | no | — | dwarf | 0.13g | 110000 | 30.4 | none | frozen | ice | — | — | — |
+| 11 | `GJ661B-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
+
+### Stations & Facilities
+
+| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
+|---|---|---|---|---|---|---|---|---|---|
+| `GJ661B-oort-S1` | Breëvlei Horizon | horizon | `GJ661B-oort` | 120 | transit | — | major | yes | 1 |
+
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->
 - **Hop Distance from Gateway:** 6