diff --git a/docs/atlas/proposals/GJ127B.json b/docs/atlas/proposals/GJ127B.json
new file mode 100644
index 000000000..cc3fb6a0f
--- /dev/null
+++ b/docs/atlas/proposals/GJ127B.json
@@ -0,0 +1,309 @@
+{
+  "system_id": "GJ 127B",
+  "proper_name": "Echternach",
+  "star_type": "G",
+  "spectral_class": "G7 V",
+  "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": "GJ127Bb",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 1,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.72,
+      "orbital_period_days": 92.0,
+      "rotation_period_hours": 2208.0,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "inner rocky; tidally locked at 92-day period × 24 = 2208h rotation; heavily cratered silicate surface; no atmosphere"
+    },
+    {
+      "body_id": "GJ127Bc",
+      "proper_name": "Wiltz",
+      "body_type": "planet",
+      "orbit_index": 2,
+      "parent_body_id": null,
+      "inhabited": true,
+      "population": 85000,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.94,
+      "orbital_period_days": 320.0,
+      "rotation_period_hours": 26.4,
+      "atmosphere": "breathable",
+      "biome_summary": "temperate-cool",
+      "hydrosphere": "rivers-lakes",
+      "economic_role": "mixed-agriculture",
+      "settlement_pattern": "distributed-rural",
+      "industrial_corridor": "west_reach",
+      "notes": "primary inhabited world; outer edge of habitable zone yields cooler temperatures, longer winters, shorter growing seasons consistent with Luxembourgish-heritage founding community character; Wave 2 settlement ~400 years old; population in slow multi-generational decline (down from estimated peak ~110,000); river-valley settlements; handcraft and small-batch manufactured exports valued in corridor collector communities; imports medical hardware and high-precision components; administrative council the effective government"
+    },
+    {
+      "body_id": "GJ127Bc-1",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 1,
+      "parent_body_id": "GJ127Bc",
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.06,
+      "orbital_period_days": 18.2,
+      "rotation_period_hours": 436.8,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "Wiltz's single moon; tidally locked; prominent in local calendar reckoning; named informally in community usage but no formal designation"
+    },
+    {
+      "body_id": "GJ127Bd",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 3,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.58,
+      "orbital_period_days": 710.0,
+      "rotation_period_hours": 22.6,
+      "atmosphere": "thin",
+      "biome_summary": "arid",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "dry rocky world beyond habitable zone; thin CO2 atmosphere; polar surface ice deposits; no settlement"
+    },
+    {
+      "body_id": "GJ127B-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": "moderate-density main belt; no established extraction operations; occasional community survey passes"
+    },
+    {
+      "body_id": "GJ127Be",
+      "proper_name": null,
+      "body_type": "gas_giant",
+      "orbit_index": 5,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "gas_giant",
+      "surface_gravity": 2.4,
+      "orbital_period_days": 3100.0,
+      "rotation_period_hours": 10.2,
+      "atmosphere": "hydrogen-helium",
+      "biome_summary": null,
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "cold gas giant; pale banding; no active resource extraction"
+    },
+    {
+      "body_id": "GJ127Be-1",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 1,
+      "parent_body_id": "GJ127Be",
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.09,
+      "orbital_period_days": 13.8,
+      "rotation_period_hours": 331.2,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "inner gas giant moon; cratered dark surface"
+    },
+    {
+      "body_id": "GJ127Be-2",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 2,
+      "parent_body_id": "GJ127Be",
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.07,
+      "orbital_period_days": 29.4,
+      "rotation_period_hours": 705.6,
+      "atmosphere": "none",
+      "biome_summary": "ice",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer gas giant moon; icy surface; possible subsurface water-ice"
+    },
+    {
+      "body_id": "GJ127Bf",
+      "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": 7400.0,
+      "rotation_period_hours": 19.8,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer ice-rock world; nitrogen-methane frost; uninhabited"
+    },
+    {
+      "body_id": "GJ127Bg",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 7,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.08,
+      "orbital_period_days": 17200.0,
+      "rotation_period_hours": 15.6,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer ice dwarf; trans-neptunian analog"
+    },
+    {
+      "body_id": "GJ127Bh",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 8,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.05,
+      "orbital_period_days": 34000.0,
+      "rotation_period_hours": 12.4,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "distant outer ice dwarf"
+    },
+    {
+      "body_id": "GJ127Bi",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 9,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.04,
+      "orbital_period_days": 62000.0,
+      "rotation_period_hours": 11.0,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "very distant outer ice dwarf; scattered disk object"
+    },
+    {
+      "body_id": "GJ127Bj",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 10,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.03,
+      "orbital_period_days": 105000.0,
+      "rotation_period_hours": 9.8,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "extreme outer ice dwarf; detached scattered-disk object"
+    },
+    {
+      "body_id": "GJ127B-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; gate infrastructure sited here"
+    }
+  ],
+  "stations": [
+    {
+      "station_id": "GJ127B-oort-S1",
+      "proper_name": "Sauer Horizon",
+      "orbits_body_id": "GJ127B-oort",
+      "station_type": "horizon",
+      "population": 4500,
+      "economic_role": "transit",
+      "docking_class": "major",
+      "has_gate_infrastructure": true,
+      "notes": "two-aperture through-route horizon station; named for the Sauer River of the Luxembourgish homeland preserved in Echternach community memory; working relationship with Alshain transit authority for inbound aperture and Bout du Chemin equivalent for outbound; modest transit traffic volume; operates as community annex rather than commercial hub; administrative council coordinates scheduling and access agreements"
+    }
+  ]
+}
diff --git a/wiki/star-systems/GJ-127B/index.md b/wiki/star-systems/GJ-127B/index.md
index 4f4bdd686..6c5b3cf58 100644
--- a/wiki/star-systems/GJ-127B/index.md
+++ b/wiki/star-systems/GJ-127B/index.md
@@ -46,6 +46,32 @@ A four-hundred-year-old community at the edge of organized space has been quietl
 
 M-type header per the database classification. The READ-ONLY profile shows G7V — the stellar catalog designation, indicating a warm lower G-type or upper K-type depending on classification convention. The habitable primary world character described is consistent with this stellar profile. Wave_2 at hop 13 is distant but not anomalous for the Wave 2 expansion period, which pushed the west_reach corridor to its current organized extent. The through-route topology correctly reflects the corridor role: GJ 4056 on one side, Langemark (GJ 42) on the other.
 
+## 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 | `GJ127Bb` | — | planet | no | — | terrestrial | 0.72g | 92 | 2208.0 | none | barren | — | — | — | — |
+| 2 | `GJ127Bc` | Wiltz | planet | yes | 85K | terrestrial | 0.94g | 320 | 26.4 | breathable | temperate-cool | rivers-lakes | mixed-agriculture | distributed-rural | west_reach |
+| ↳ 2.1 | `GJ127Bc-1` | — | moon | no | — | dwarf | 0.06g | 18 | 436.8 | none | barren | — | — | — | — |
+| 3 | `GJ127Bd` | — | planet | no | — | terrestrial | 0.58g | 710 | 22.6 | thin | arid | — | — | — | — |
+| 4 | `GJ127B-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
+| 5 | `GJ127Be` | — | gas_giant | no | — | gas_giant | 2.40g | 3100 | 10.2 | hydrogen-helium | — | — | — | — | — |
+| ↳ 5.1 | `GJ127Be-1` | — | moon | no | — | dwarf | 0.09g | 14 | 331.2 | none | barren | — | — | — | — |
+| ↳ 5.2 | `GJ127Be-2` | — | moon | no | — | dwarf | 0.07g | 29 | 705.6 | none | ice | — | — | — | — |
+| 6 | `GJ127Bf` | — | planet | no | — | terrestrial | 0.44g | 7400 | 19.8 | none | frozen | — | — | — | — |
+| 7 | `GJ127Bg` | — | planet | no | — | dwarf | 0.08g | 17200 | 15.6 | none | frozen | — | — | — | — |
+| 8 | `GJ127Bh` | — | planet | no | — | dwarf | 0.05g | 34000 | 12.4 | none | frozen | — | — | — | — |
+| 9 | `GJ127Bi` | — | planet | no | — | dwarf | 0.04g | 62000 | 11.0 | none | frozen | — | — | — | — |
+| 10 | `GJ127Bj` | — | planet | no | — | dwarf | 0.03g | 105000 | 9.8 | none | frozen | — | — | — | — |
+| 11 | `GJ127B-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
+
+### Stations & Facilities
+
+| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
+|---|---|---|---|---|---|---|---|---|---|
+| `GJ127B-oort-S1` | Sauer Horizon | horizon | `GJ127B-oort` | 4K | transit | — | major | yes | 1 |
+
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->
 - **Hop Distance from Gateway:** 13