🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.42 AU - 0.68 AU

Year: 150 Days

Day: 47.5 Hours

Environment

Temp: 232 °C

Axial Tilt: 45.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 82,121,418 km

• M1: 155,283 km (0.025 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.61 AU - 1.95 AU

Year: 876 Days

Day: 32.2 Hours

Environment

Temp: -51 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.8

Radius: 9.8

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.13 AU - 5.83 AU

Year: 4100 Days

Day: 12.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,121,418 km

• M1: 123,269 km (0.105 R)
• M2: 447,597 km (0.112 R)
• M3: 1,009,038 km (0.086 R)
• M4: 2,026,453 km (0.095 R)
• M5: 2,694,407 km (0.04 R)
• M6: 4,326,670 km (0.058 R)
• M7: 5,784,650 km (0.091 R)
• M8: 6,238,979 km (0.117 R)
• M9: 6,625,540 km (0.094 R)
• M10: 6,965,127 km (0.105 R)
• M11: 8,088,906 km (0.117 R)
• M12: 8,477,113 km (0.093 R)
• M13: 9,367,669 km (0.092 R)
• M14: 9,835,611 km (0.111 R)
• M15: 10,401,390 km (0.104 R)
• M16: 11,160,450 km (0.11 R)
• M17: 11,509,462 km (0.104 R)
• M18: 12,600,479 km (0.075 R)
• M19: 12,931,390 km (0.088 R)
• M20: 14,009,242 km (0.114 R)
• M21: 15,145,887 km (0.069 R)
• M22: 15,682,345 km (0.063 R)
• M23: 20,118,819 km (0.094 R)
• M24: 20,832,850 km (0.102 R)
• M25: 21,631,104 km (0.09 R)
• M26: 24,439,355 km (0.112 R)

Planet 4 - Ice Giant

Semi-Major Axis: 18.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384.5

Radius: 4.8

Gravity: 16.69 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 18.68 AU - 18.8 AU

Year: 29932 Days

Day: 16 Hours

Environment

Temp: -205 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,121,418 km

• M1: 82,279 km (0.093 R)
• M2: 570,865 km (0.108 R)
• M3: 921,672 km (0.105 R)
• M4: 1,436,439 km (0.111 R)
• M5: 2,876,767 km (0.091 R)
• M6: 3,400,210 km (0.055 R)
• M7: 4,216,416 km (0.108 R)
• M8: 5,040,700 km (0.077 R)
• M9: 5,351,116 km (0.105 R)
• M10: 8,579,587 km (0.114 R)
• M11: 9,714,138 km (0.098 R)
• M12: 10,317,466 km (0.087 R)
• M13: 15,256,888 km (0.069 R)
• M14: 21,170,791 km (0.087 R)
• M15: 23,867,293 km (0.087 R)
• M16: 29,554,705 km (0.072 R)
• M17: 32,114,474 km (0.109 R)
• M18: 36,225,274 km (0.071 R)
• M19: 39,453,297 km (0.12 R)
• M20: 65,429,920 km (0.084 R)
• M21: 72,209,845 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 13,154 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit