diff --git a/docs/atlas/proposals/GJ3737.json b/docs/atlas/proposals/GJ3737.json
new file mode 100644
index 000000000..2c31ccf8f
--- /dev/null
+++ b/docs/atlas/proposals/GJ3737.json
@@ -0,0 +1,240 @@
+{
+  "system_id": "GJ 3737",
+  "proper_name": "Nyrheim",
+  "star_type": "M",
+  "spectral_class": "M4",
+  "wiki_data": {
+    "habitable_count": 0,
+    "inhabited_count": 0,
+    "has_gas_giant": true,
+    "has_asteroid_belt": true,
+    "has_horizon_station": true,
+    "raw_bodies_line": null
+  },
+  "bodies": [
+    {
+      "body_id": "GJ3737b",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 1,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.30,
+      "orbital_period_days": 5.2,
+      "rotation_period_hours": 124.8,
+      "atmosphere": "none",
+      "biome_summary": "barren",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "inner scorched rocky, tidally locked"
+    },
+    {
+      "body_id": "GJ3737c",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 2,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.54,
+      "orbital_period_days": 16.0,
+      "rotation_period_hours": 384.0,
+      "atmosphere": "thin",
+      "biome_summary": "cold_arid",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "inner rocky, tidally locked, cold marginal — no surface habitability"
+    },
+    {
+      "body_id": "GJ3737-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": "GJ3737d",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 4,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.44,
+      "orbital_period_days": 88.0,
+      "rotation_period_hours": 21.6,
+      "atmosphere": "trace",
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer rocky, frozen, uninhabited"
+    },
+    {
+      "body_id": "GJ3737e",
+      "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": 360.0,
+      "rotation_period_hours": 12.4,
+      "atmosphere": "gas_giant",
+      "biome_summary": null,
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer gas giant; the Rig orbits here"
+    },
+    {
+      "body_id": "GJ3737e-m1",
+      "proper_name": null,
+      "body_type": "moon",
+      "orbit_index": 1,
+      "parent_body_id": "GJ3737e",
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.10,
+      "orbital_period_days": 4.6,
+      "rotation_period_hours": 110.4,
+      "atmosphere": null,
+      "biome_summary": "frozen",
+      "hydrosphere": null,
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "small icy moon, tidally locked"
+    },
+    {
+      "body_id": "GJ3737f",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 6,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "terrestrial",
+      "surface_gravity": 0.35,
+      "orbital_period_days": 1100.0,
+      "rotation_period_hours": 30.4,
+      "atmosphere": "trace",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outer icy rocky, uninhabited"
+    },
+    {
+      "body_id": "GJ3737g",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 7,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.11,
+      "orbital_period_days": 2800.0,
+      "rotation_period_hours": 24.8,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "outermost ice dwarf"
+    },
+    {
+      "body_id": "GJ3737h",
+      "proper_name": null,
+      "body_type": "planet",
+      "orbit_index": 8,
+      "parent_body_id": null,
+      "inhabited": false,
+      "population": null,
+      "mass_class": "dwarf",
+      "surface_gravity": 0.10,
+      "orbital_period_days": 6200.0,
+      "rotation_period_hours": 21.4,
+      "atmosphere": "none",
+      "biome_summary": "frozen",
+      "hydrosphere": "ice",
+      "economic_role": null,
+      "settlement_pattern": null,
+      "industrial_corridor": null,
+      "notes": "distant ice dwarf"
+    },
+    {
+      "body_id": "GJ3737-oort",
+      "proper_name": null,
+      "body_type": "oort_cloud",
+      "orbit_index": 9,
+      "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": "GJ3737-oort-S1",
+      "proper_name": "Nyrheim Horizon",
+      "orbits_body_id": "GJ3737-oort",
+      "station_type": "horizon",
+      "population": 420,
+      "economic_role": "transit",
+      "docking_class": "major",
+      "has_gate_infrastructure": true,
+      "notes": "horizon station — 2 apertures; loop_member; connects Torsby and Vindkast; transit fee dispute with Gate Corporation (22 years unresolved)"
+    },
+    {
+      "station_id": "GJ3737e-S1",
+      "proper_name": "the Rig",
+      "orbits_body_id": "GJ3737e",
+      "station_type": "commercial",
+      "population": 6000,
+      "economic_role": "manufacturing",
+      "docking_class": "major",
+      "has_gate_infrastructure": false,
+      "notes": "primary habitation (the Rig); modular expanding station orbiting gas giant; wave_5 founding cooperative; two-chamber governance (practical council + principles council); subsidized light manufacturing sector; Compact of Westphalia founding signatory; construction ongoing"
+    }
+  ]
+}
diff --git a/wiki/star-systems/GJ-3737/index.md b/wiki/star-systems/GJ-3737/index.md
index 4ead09966..b0898df51 100644
--- a/wiki/star-systems/GJ-3737/index.md
+++ b/wiki/star-systems/GJ-3737/index.md
@@ -50,6 +50,29 @@ Nyrheim's founders thought they were starting from a blank page — but their fo
 
 `wave_5` at hop 7 is explicitly unusual and is explained by the founding cooperative's deliberate ideological choice to settle in established-corridor space rather than genuine frontier, using an available loop position. M4 classification is accurate. `loop_member` with two gates — inward to Torsby, outward to GJ 414A — is accurate. The station-based settlement follows from the absence of habitable surfaces under an M4 primary. Norwegian name communicates the founding spirit without being an Earth place-name.
 
+## 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 | `GJ3737b` | — | planet | no | — | terrestrial | 0.30g | 5 | 124.8 | none | barren | — | — | — | — |
+| 2 | `GJ3737c` | — | planet | no | — | terrestrial | 0.54g | 16 | 384.0 | thin | cold_arid | — | — | — | — |
+| 3 | `GJ3737-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
+| 4 | `GJ3737d` | — | planet | no | — | terrestrial | 0.44g | 88 | 21.6 | trace | frozen | — | — | — | — |
+| 5 | `GJ3737e` | — | gas_giant | no | — | — | — | 360 | 12.4 | gas_giant | — | — | — | — | — |
+| ↳ 5.1 | `GJ3737e-m1` | — | moon | no | — | dwarf | 0.10g | 5 | 110.4 | — | frozen | — | — | — | — |
+| 6 | `GJ3737f` | — | planet | no | — | terrestrial | 0.35g | 1100 | 30.4 | trace | frozen | ice | — | — | — |
+| 7 | `GJ3737g` | — | planet | no | — | dwarf | 0.11g | 2800 | 24.8 | none | frozen | ice | — | — | — |
+| 8 | `GJ3737h` | — | planet | no | — | dwarf | 0.10g | 6200 | 21.4 | none | frozen | ice | — | — | — |
+| 9 | `GJ3737-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
+
+### Stations & Facilities
+
+| ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
+|---|---|---|---|---|---|---|---|---|---|
+| `GJ3737-oort-S1` | Nyrheim Horizon | horizon | `GJ3737-oort` | 420 | transit | — | major | yes | 1 |
+| `GJ3737e-S1` | the Rig | commercial | `GJ3737e` | 6K | manufacturing | — | major | no | 1 |
+
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->
 - **Hop Distance from Gateway:** 7