feat(atlas): add gravity, orbital period, rotation + sync-wiki command

Schema: added orbital_period_days and rotation_period_hours to bodies
table. Proposal format now includes surface_gravity, orbital_period_days,
rotation_period_hours with sensible defaults per body type.

New sync-wiki command generates a Celestial Bodies section in wiki
pages from DB data. All 16 fields rendered including Year (d) and
Day (h). Re-authored Gateway (GJ 71) with full physics.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/atlas/proposals/GJ71.json

@@ -21,13 +21,16 @@
       "inhabited": false,
       "population": 0,
       "mass_class": "terrestrial",
+      "surface_gravity": 0.35,
+      "orbital_period_days": 42,
+      "rotation_period_hours": 1012,
       "atmosphere": "none",
       "biome_summary": "barren",
       "hydrosphere": "none",
       "economic_role": null,
       "settlement_pattern": null,
       "industrial_corridor": null,
-      "notes": "inner rocky"
+      "notes": "inner rocky, tidally locked"
     },
     {
       "body_id": "GJ71c",
@@ -38,6 +41,9 @@
       "inhabited": true,
       "population": 600000000,
       "mass_class": "terrestrial",
+      "surface_gravity": 0.92,
+      "orbital_period_days": 310,
+      "rotation_period_hours": 22.4,
       "atmosphere": "breathable",
       "biome_summary": "temperate",
       "hydrosphere": "ocean",
@@ -55,6 +61,9 @@
       "inhabited": true,
       "population": 500000000,
       "mass_class": "terrestrial",
+      "surface_gravity": 0.87,
+      "orbital_period_days": 520,
+      "rotation_period_hours": 27.1,
       "atmosphere": "breathable",
       "biome_summary": "temperate",
       "hydrosphere": "rivers",
@@ -72,13 +81,16 @@
       "inhabited": true,
       "population": 20000000,
       "mass_class": "dwarf",
+      "surface_gravity": 0.12,
+      "orbital_period_days": 8.2,
+      "rotation_period_hours": 196.8,
       "atmosphere": "none",
       "biome_summary": "barren",
       "hydrosphere": "none",
       "economic_role": "transit",
       "settlement_pattern": "domed",
       "industrial_corridor": null,
-      "notes": "domed service settlement"
+      "notes": "domed service settlement, tidally locked to Arden"
     },
     {
       "body_id": "GJ71e",
@@ -89,6 +101,9 @@
       "inhabited": false,
       "population": 0,
       "mass_class": "terrestrial",
+      "surface_gravity": 0.45,
+      "orbital_period_days": 1850,
+      "rotation_period_hours": 16.3,
       "atmosphere": "thin",
       "biome_summary": "frozen",
       "hydrosphere": "ice",
@@ -106,6 +121,9 @@
       "inhabited": false,
       "population": 0,
       "mass_class": null,
+      "surface_gravity": null,
+      "orbital_period_days": null,
+      "rotation_period_hours": null,
       "atmosphere": null,
       "biome_summary": null,
       "hydrosphere": null,
@@ -123,6 +141,9 @@
       "inhabited": false,
       "population": 0,
       "mass_class": null,
+      "surface_gravity": null,
+      "orbital_period_days": null,
+      "rotation_period_hours": null,
       "atmosphere": null,
       "biome_summary": null,
       "hydrosphere": null,

server/data/systems-schema.sql

@@ -142,6 +142,8 @@ CREATE TABLE IF NOT EXISTS bodies (
     mass_class TEXT,                    -- terrestrial, super_earth, ice_giant, gas_giant, dwarf
     atmosphere TEXT,                    -- breathable, thin, toxic, none, dense
     surface_gravity REAL,              -- in g (Earth = 1.0), NULL for gas giants
+    orbital_period_days REAL,          -- orbital period in Earth days, NULL for oort/belt
+    rotation_period_hours REAL,        -- rotation period in Earth hours (Earth = 24), NULL for tidally locked/gas giants
     biome_summary TEXT,                -- temperate, arid, frozen, oceanic, volcanic, barren, mixed
     hydrosphere TEXT,                  -- ocean, ice, rivers, none, subsurface
 

server/src/bin/atlas.rs

@@ -236,6 +236,9 @@ struct ProposalBody {
     inhabited: bool,
     population: Option<i64>,
     mass_class: Option<String>,
+    surface_gravity: Option<f64>,
+    orbital_period_days: Option<f64>,
+    rotation_period_hours: Option<f64>,
     atmosphere: Option<String>,
     biome_summary: Option<String>,
     hydrosphere: Option<String>,
@@ -806,6 +809,9 @@ fn generate_body_matrix(
             proper_name: None,
             population: None,
             mass_class: Some("terrestrial".into()),
+            surface_gravity: Some(0.38),
+            orbital_period_days: Some(88.0),
+            rotation_period_hours: Some(1408.0),
             atmosphere: Some("none".into()),
             biome_summary: Some("barren".into()),
             hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -831,6 +837,9 @@ fn generate_body_matrix(
             proper_name: None,
             population: None,
             mass_class: Some("terrestrial".into()),
+            surface_gravity: Some(0.9),
+            orbital_period_days: Some(365.0),
+            rotation_period_hours: Some(24.0),
             atmosphere: Some("breathable".into()),
             biome_summary: Some("temperate".into()),
             hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -857,6 +866,9 @@ fn generate_body_matrix(
             proper_name: None,
             population: None,
             mass_class: Some("terrestrial".into()),
+            surface_gravity: Some(0.85),
+            orbital_period_days: Some(400.0),
+            rotation_period_hours: Some(26.0),
             atmosphere: Some("breathable".into()),
             biome_summary: Some("temperate".into()),
             hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -884,6 +896,9 @@ fn generate_body_matrix(
             proper_name: None,
             population: None,
             mass_class: Some("terrestrial".into()),
+            surface_gravity: Some(0.5),
+            orbital_period_days: Some(2000.0),
+            rotation_period_hours: Some(18.0),
             atmosphere: Some("thin".into()),
             biome_summary: Some("frozen".into()),
             hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -903,6 +918,9 @@ fn generate_body_matrix(
             proper_name: None,
             population: None,
             mass_class: None,
+            surface_gravity: None,
+            orbital_period_days: None,
+            rotation_period_hours: None,
             atmosphere: None,
             biome_summary: None,
             hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -928,6 +946,9 @@ fn generate_body_matrix(
             proper_name: None,
             population: None,
             mass_class: Some("gas_giant".into()),
+            surface_gravity: None,
+            orbital_period_days: Some(4300.0),
+            rotation_period_hours: Some(10.0),
             atmosphere: Some("dense".into()),
             biome_summary: None,
             hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -944,6 +965,9 @@ fn generate_body_matrix(
                 proper_name: None,
                 population: None,
                 mass_class: Some("dwarf".into()),
+                surface_gravity: Some(0.1),
+                orbital_period_days: Some(3.5 * m as f64),
+                rotation_period_hours: Some(3.5 * 24.0 * m as f64),
                 atmosphere: Some("none".into()),
                 biome_summary: Some("barren".into()),
                 hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -964,6 +988,9 @@ fn generate_body_matrix(
         proper_name: None,
         population: None,
         mass_class: None,
+        surface_gravity: None,
+        orbital_period_days: None,
+        rotation_period_hours: None,
         atmosphere: None,
         biome_summary: None,
         hydrosphere: None, economic_role: None, settlement_pattern: None, industrial_corridor: None,
@@ -1104,10 +1131,11 @@ fn cmd_commit_system(conn: &Connection, path: &str) {
     for body in &proposal.bodies {
         tx.execute(
             "INSERT INTO bodies (body_id, system_id, parent_body_id, body_type, orbit_index,
-                                 proper_name, inhabited, population, mass_class, atmosphere,
+                                 proper_name, inhabited, population, mass_class, surface_gravity,
+                                 orbital_period_days, rotation_period_hours, atmosphere,
                                  biome_summary, hydrosphere, economic_role, settlement_pattern,
                                  industrial_corridor)
-             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, ?15)",
+             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, ?15, ?16, ?17, ?18)",
             params![
                 body.body_id,
                 proposal.system_id,
@@ -1118,6 +1146,9 @@ fn cmd_commit_system(conn: &Connection, path: &str) {
                 body.inhabited as i32,
                 body.population.unwrap_or(0),
                 body.mass_class,
+                body.surface_gravity,
+                body.orbital_period_days,
+                body.rotation_period_hours,
                 body.atmosphere,
                 body.biome_summary,
                 body.hydrosphere,
@@ -1270,6 +1301,7 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
             .prepare(
                 "SELECT body_id, proper_name, body_type, orbit_index, parent_body_id,
                         inhabited, population, mass_class, atmosphere, surface_gravity,
+                        orbital_period_days, rotation_period_hours,
                         biome_summary, hydrosphere, economic_role, settlement_pattern,
                         industrial_corridor
                  FROM bodies WHERE system_id = ?1
@@ -1288,6 +1320,8 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
             mass_class: Option<String>,
             atmosphere: Option<String>,
             gravity: Option<f64>,
+            orbital_days: Option<f64>,
+            rotation_hours: Option<f64>,
             biome: Option<String>,
             hydro: Option<String>,
             econ: Option<String>,
@@ -1308,11 +1342,13 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
                     mass_class: row.get(7)?,
                     atmosphere: row.get(8)?,
                     gravity: row.get(9)?,
-                    biome: row.get(10)?,
-                    hydro: row.get(11)?,
-                    econ: row.get(12)?,
-                    settlement: row.get(13)?,
-                    industrial: row.get(14)?,
+                    orbital_days: row.get(10)?,
+                    rotation_hours: row.get(11)?,
+                    biome: row.get(12)?,
+                    hydro: row.get(13)?,
+                    econ: row.get(14)?,
+                    settlement: row.get(15)?,
+                    industrial: row.get(16)?,
                 })
             })
             .unwrap()
@@ -1373,8 +1409,8 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
 
         // Bodies table
         if !bodies.is_empty() {
-            section.push_str("| Orbit | ID | Name | Type | Inhabited | Population | Mass | Gravity | Atmosphere | Biome | Hydrosphere | Economy | Settlement | Industrial |\n");
-            section.push_str("|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n");
+            section.push_str("| Orbit | ID | Name | Type | Inhabited | Pop | Mass | Gravity | Year (d) | Day (h) | Atmo | Biome | Hydro | Economy | Settlement | Industrial |\n");
+            section.push_str("|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n");
 
             // First pass: top-level bodies (no parent)
             for b in &bodies {
@@ -1388,8 +1424,10 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
                     "—".to_string()
                 };
                 let grav = b.gravity.map(|g| format!("{:.2}g", g)).unwrap_or_else(|| "—".to_string());
+                let year = b.orbital_days.map(|d| format!("{:.0}", d)).unwrap_or_else(|| "—".to_string());
+                let day = b.rotation_hours.map(|h| format!("{:.1}", h)).unwrap_or_else(|| "—".to_string());
                 section.push_str(&format!(
-                    "| {} | `{}` | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} |\n",
+                    "| {} | `{}` | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} |\n",
                     b.orbit,
                     b.id,
                     name,
@@ -1398,6 +1436,8 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
                     pop,
                     b.mass_class.as_deref().unwrap_or("—"),
                     grav,
+                    year,
+                    day,
                     b.atmosphere.as_deref().unwrap_or("—"),
                     b.biome.as_deref().unwrap_or("—"),
                     b.hydro.as_deref().unwrap_or("—"),
@@ -1416,8 +1456,10 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
                             "—".to_string()
                         };
                         let mgrav = m.gravity.map(|g| format!("{:.2}g", g)).unwrap_or_else(|| "—".to_string());
+                        let myear = m.orbital_days.map(|d| format!("{:.0}", d)).unwrap_or_else(|| "—".to_string());
+                        let mday = m.rotation_hours.map(|h| format!("{:.1}", h)).unwrap_or_else(|| "—".to_string());
                         section.push_str(&format!(
-                            "| ↳ {}.{} | `{}` | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} |\n",
+                            "| ↳ {}.{} | `{}` | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} | {} |\n",
                             b.orbit,
                             m.orbit,
                             m.id,
@@ -1427,6 +1469,8 @@ fn cmd_sync_wiki(conn: &Connection, system_id: Option<&str>, wiki_dir: &str) {
                             mpop,
                             m.mass_class.as_deref().unwrap_or("—"),
                             mgrav,
+                            myear,
+                            mday,
                             m.atmosphere.as_deref().unwrap_or("—"),
                             m.biome.as_deref().unwrap_or("—"),
                             m.hydro.as_deref().unwrap_or("—"),

wiki/star-systems/GJ-71/index.md

@@ -70,19 +70,18 @@ The Institute has been studying the first horizon station for five hundred years
 ## Celestial Bodies
 <!-- READ-ONLY — generated from systems.db bodies/stations tables -->
 
-| Orbit | ID | Name | Type | Inhabited | Population | Mass | Gravity | Atmosphere | Biome | Hydrosphere | Economy | Settlement | Industrial |
-|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
-| 1 | `GJ71b` | — | planet | no | — | terrestrial | — | none | barren | none | — | — | — |
-| 2 | `GJ71c` | Threshold | planet | yes | 600M | terrestrial | — | breathable | temperate | ocean | agricultural | urban_concentrated | — |
-| 3 | `GJ71d` | Arden | planet | yes | 500M | terrestrial | — | breathable | temperate | rivers | agricultural | dispersed_rural | — |
-| ↳ 3.1 | `GJ71d-1` | Verantis | moon | yes | 20M | dwarf | — | none | barren | none | transit | domed | — |
-| 4 | `GJ71e` | — | planet | no | — | terrestrial | — | thin | frozen | ice | — | — | — |
-| 5 | `GJ71-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — |
-| 6 | `GJ71-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — |
+| Orbit | ID | Name | Type | Inhabited | Pop | Mass | Gravity | Year (d) | Day (h) | Atmo | Biome | Hydro | Economy | Settlement | Industrial |
+|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
+| 1 | `GJ71b` | — | planet | no | — | terrestrial | 0.35g | 42 | 1012.0 | none | barren | none | — | — | — |
+| 2 | `GJ71c` | Threshold | planet | yes | 600M | terrestrial | 0.92g | 310 | 22.4 | breathable | temperate | ocean | agricultural | urban_concentrated | — |
+| 3 | `GJ71d` | Arden | planet | yes | 500M | terrestrial | 0.87g | 520 | 27.1 | breathable | temperate | rivers | agricultural | dispersed_rural | — |
+| ↳ 3.1 | `GJ71d-1` | Verantis | moon | yes | 20M | dwarf | 0.12g | 8 | 196.8 | none | barren | none | transit | domed | — |
+| 4 | `GJ71e` | — | planet | no | — | terrestrial | 0.45g | 1850 | 16.3 | thin | frozen | ice | — | — | — |
+| 5 | `GJ71-belt` | — | asteroid_belt | no | — | — | — | — | — | — | — | — | — | — | — |
+| 6 | `GJ71-oort` | — | oort_cloud | no | — | — | — | — | — | — | — | — | — | — | — |
 
 ### Stations & Facilities
 
 | ID | Name | Type | Orbits | Population | Economy | Governance | Docking | Gate | Districts |
 |---|---|---|---|---|---|---|---|---|---|
 | `GJ71-oort-S1` | Horizon Station | horizon | `GJ71-oort` | 80M | transit | — | major | yes | 1 |
-