🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.54 AU - 0.8 AU

Year: 360 Days

Day: 27.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 41.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,658,104 km

• M1: 121,623 km (0.081 R)
• M2: 138,677 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.3

Radius: 8.8

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.79 AU - 0.81 AU

Year: 469 Days

Day: 10.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,658,104 km

• M1: 111,301 km (0.1 R)
• M2: 396,434 km (0.109 R)
• M3: 687,552 km (0.11 R)
• M4: 1,039,406 km (0.083 R)
• M5: 1,362,089 km (0.086 R)
• M6: 1,782,010 km (0.071 R)
• M7: 2,268,652 km (0.055 R)
• M8: 2,657,307 km (0.109 R)
• M9: 3,568,807 km (0.112 R)
• M10: 3,910,788 km (0.052 R)
• M11: 4,219,109 km (0.072 R)
• M12: 4,529,375 km (0.071 R)
• M13: 5,243,555 km (0.102 R)
• M14: 5,602,889 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.8

Radius: 12.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.43 AU - 3.45 AU

Year: 3307 Days

Day: 13.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,658,104 km

• M1: 193,729 km (0.033 R)
• M2: 829,520 km (0.051 R)
• M3: 1,527,245 km (0.106 R)
• M4: 2,224,969 km (0.086 R)
• M5: 2,857,619 km (0.093 R)
• M6: 3,447,633 km (0.109 R)
• M7: 3,904,205 km (0.119 R)
• M8: 4,505,589 km (0.096 R)
• M9: 6,416,253 km (0.114 R)
• M10: 6,827,348 km (0.069 R)
• M11: 8,423,856 km (0.111 R)
• M12: 9,606,577 km (0.075 R)
• M13: 11,129,334 km (0.079 R)
• M14: 13,550,874 km (0.054 R)
• M15: 14,415,251 km (0.077 R)
• M16: 16,558,240 km (0.107 R)
• M17: 17,177,725 km (0.11 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518.2

Radius: 8

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 7.46 AU - 10.18 AU

Year: 17184 Days

Day: 18.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,658,104 km

• M1: 103,223 km (0.066 R)
• M2: 654,341 km (0.1 R)
• M3: 2,536,731 km (0.09 R)
• M4: 2,898,309 km (0.11 R)
• M5: 3,268,265 km (0.113 R)
• M6: 4,603,126 km (0.073 R)
• M7: 5,762,211 km (0.11 R)
• M8: 8,397,976 km (0.114 R)
• M9: 9,307,980 km (0.078 R)
• M10: 14,793,584 km (0.042 R)
• M11: 15,742,034 km (0.053 R)
• M12: 27,778,529 km (0.11 R)
• M13: 32,733,809 km (0.092 R)
• M14: 38,926,563 km (0.083 R)
• M15: 44,648,831 km (0.09 R)
• M16: 48,496,189 km (0.098 R)
• M17: 51,399,136 km (0.115 R)
• M18: 56,842,553 km (0.107 R)
• M19: 58,799,144 km (0.111 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 349 - 12,867 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit