🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.3

Radius: 15

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.48 AU - 0.72 AU

Year: 321 Days

Day: 13.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,823,267 km

• M1: 186,549 km (0.101 R)
• M2: 653,443 km (0.112 R)
• M3: 1,191,248 km (0.08 R)
• M4: 1,686,267 km (0.108 R)
• M5: 2,152,713 km (0.063 R)
• M6: 2,751,254 km (0.039 R)
• M7: 3,234,605 km (0.116 R)
• M8: 3,968,383 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.5

Radius: 11.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.47 AU - 0.75 AU

Year: 329 Days

Day: 9.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 16,823,267 km

• M1: 148,102 km (0.111 R)
• M2: 551,567 km (0.083 R)
• M3: 924,814 km (0.068 R)
• M4: 1,397,244 km (0.088 R)
• M5: 2,078,812 km (0.083 R)
• M6: 2,660,000 km (0.077 R)
• M7: 3,062,867 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697

Radius: 9.8

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.61 AU - 1.79 AU

Year: 1530 Days

Day: 8 Hours

Environment

Temp: -204 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 16,823,267 km

• M1: 121,922 km (0.075 R)
• M2: 445,054 km (0.106 R)
• M3: 770,279 km (0.086 R)
• M4: 1,469,799 km (0.047 R)
• M5: 1,935,198 km (0.034 R)
• M6: 2,561,265 km (0.116 R)
• M7: 3,133,926 km (0.119 R)
• M8: 3,475,159 km (0.053 R)
• M9: 4,458,017 km (0.094 R)
• M10: 5,374,154 km (0.105 R)
• M11: 6,193,801 km (0.113 R)
• M12: 9,373,803 km (0.054 R)
• M13: 9,758,419 km (0.112 R)
• M14: 11,584,560 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.4

Radius: 9.2

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.85 AU - 3.37 AU

Year: 3786 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,823,267 km

• M1: 114,742 km (0.11 R)
• M2: 404,961 km (0.102 R)
• M3: 704,606 km (0.084 R)
• M4: 1,220,719 km (0.064 R)
• M5: 1,639,144 km (0.1 R)
• M6: 3,838,532 km (0.104 R)
• M7: 5,532,279 km (0.049 R)
• M8: 6,771,996 km (0.087 R)
• M9: 7,487,972 km (0.089 R)
• M10: 11,184,386 km (0.035 R)
• M11: 14,746,012 km (0.108 R)
• M12: 16,101,219 km (0.08 R)
• M13: 16,995,964 km (0.109 R)
• M14: 18,769,596 km (0.075 R)
• M15: 19,173,510 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.5

Radius: 14.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.22 AU - 5.16 AU

Year: 5920 Days

Day: 12.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,823,267 km

• M1: 180,265 km (0.111 R)
• M2: 725,699 km (0.103 R)
• M3: 1,302,399 km (0.109 R)
• M4: 1,768,845 km (0.088 R)
• M5: 3,360,866 km (0.073 R)
• M6: 3,957,911 km (0.068 R)
• M7: 5,298,757 km (0.086 R)
• M8: 5,791,532 km (0.053 R)
• M9: 8,992,328 km (0.104 R)
• M10: 9,593,711 km (0.059 R)
• M11: 14,003,707 km (0.085 R)
• M12: 14,997,187 km (0.114 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 15,793 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit