🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.48 AU - 0.78 AU

Year: 323 Days

Day: 15.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.4

Radius: 12.6

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.89 AU - 0.97 AU

Year: 579 Days

Day: 12.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,557,358 km

• M1: 156,779 km (0.101 R)
• M2: 822,190 km (0.106 R)
• M3: 1,306,588 km (0.095 R)
• M4: 1,841,849 km (0.112 R)
• M5: 2,287,501 km (0.066 R)
• M6: 3,017,838 km (0.118 R)
• M7: 3,709,878 km (0.114 R)
• M8: 4,444,852 km (0.064 R)
• M9: 5,463,015 km (0.092 R)
• M10: 6,073,973 km (0.089 R)
• M11: 6,493,296 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.3

Radius: 13.9

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.12 AU - 1.4 AU

Year: 913 Days

Day: 13.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,557,358 km

• M1: 173,534 km (0.078 R)
• M2: 687,402 km (0.114 R)
• M3: 1,186,760 km (0.098 R)
• M4: 1,665,174 km (0.08 R)
• M5: 2,516,386 km (0.066 R)
• M6: 2,994,800 km (0.112 R)
• M7: 3,655,424 km (0.032 R)
• M8: 4,584,726 km (0.094 R)
• M9: 5,394,200 km (0.116 R)
• M10: 6,932,365 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.1

Radius: 14

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.33 AU - 1.65 AU

Year: 1174 Days

Day: 13.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,557,358 km

• M1: 175,329 km (0.066 R)
• M2: 803,789 km (0.11 R)
• M3: 1,331,271 km (0.108 R)
• M4: 1,936,096 km (0.101 R)
• M5: 2,507,111 km (0.107 R)
• M6: 3,089,046 km (0.117 R)
• M7: 3,760,442 km (0.115 R)
• M8: 4,565,129 km (0.118 R)
• M9: 5,439,678 km (0.109 R)
• M10: 5,939,783 km (0.114 R)
• M11: 7,628,145 km (0.061 R)
• M12: 8,511,820 km (0.083 R)
• M13: 9,555,414 km (0.029 R)
• M14: 11,365,399 km (0.088 R)
• M15: 11,824,814 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.1

Radius: 14.8

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.73 AU - 2.87 AU

Year: 3025 Days

Day: 13.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,557,358 km

• M1: 184,155 km (0.044 R)
• M2: 788,082 km (0.093 R)
• M3: 1,373,308 km (0.055 R)
• M4: 1,950,457 km (0.062 R)
• M5: 2,768,159 km (0.067 R)
• M6: 3,906,449 km (0.068 R)
• M7: 5,187,755 km (0.11 R)
• M8: 6,471,155 km (0.092 R)
• M9: 7,662,403 km (0.11 R)
• M10: 8,327,814 km (0.098 R)
• M11: 9,966,659 km (0.062 R)
• M12: 10,477,984 km (0.103 R)
• M13: 11,510,808 km (0.097 R)
• M14: 13,875,651 km (0.087 R)
• M15: 15,587,350 km (0.1 R)
• M16: 16,767,528 km (0.08 R)
• M17: 18,006,647 km (0.077 R)
• M18: 19,732,109 km (0.099 R)
• M19: 21,761,553 km (0.042 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 12,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit