🌌 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 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.49 AU - 0.69 AU

Year: 297 Days

Day: 40.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 41.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.5

Radius: 8.8

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.75 AU - 0.95 AU

Year: 514 Days

Day: 10.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 172.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,867,070 km

• M1: 109,506 km (0.116 R)
• M2: 383,419 km (0.087 R)
• M3: 707,448 km (0.091 R)
• M4: 1,007,542 km (0.069 R)
• M5: 1,388,268 km (0.056 R)
• M6: 1,782,309 km (0.042 R)
• M7: 2,058,467 km (0.117 R)
• M8: 2,698,746 km (0.095 R)
• M9: 3,002,280 km (0.105 R)
• M10: 3,739,348 km (0.107 R)
• M11: 4,263,240 km (0.101 R)
• M12: 4,791,769 km (0.068 R)
• M13: 5,087,076 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.3

Radius: 13.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1 AU - 1.42 AU

Year: 873 Days

Day: 8.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,867,070 km

• M1: 165,455 km (0.097 R)
• M2: 686,056 km (0.095 R)
• M3: 1,269,039 km (0.081 R)
• M4: 2,004,761 km (0.087 R)
• M5: 2,586,697 km (0.102 R)
• M6: 3,707,484 km (0.102 R)
• M7: 4,172,135 km (0.11 R)
• M8: 4,608,512 km (0.036 R)
• M9: 5,293,221 km (0.096 R)
• M10: 5,865,284 km (0.048 R)
• M11: 6,606,092 km (0.115 R)
• M12: 7,362,310 km (0.106 R)
• M13: 8,603,972 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42

Radius: 10.5

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.11 AU - 1.71 AU

Year: 1098 Days

Day: 14.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,867,070 km

• M1: 130,599 km (0.112 R)
• M2: 467,194 km (0.085 R)
• M3: 857,196 km (0.025 R)
• M4: 1,328,279 km (0.05 R)
• M5: 2,560,667 km (0.062 R)
• M6: 3,074,535 km (0.117 R)
• M7: 3,501,488 km (0.053 R)
• M8: 4,027,324 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.4

Radius: 11.6

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.04 AU - 3.08 AU

Year: 2687 Days

Day: 6.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,867,070 km

• M1: 145,559 km (0.084 R)
• M2: 1,040,304 km (0.104 R)
• M3: 1,588,281 km (0.105 R)
• M4: 1,982,172 km (0.118 R)
• M5: 3,774,504 km (0.104 R)
• M6: 4,822,138 km (0.07 R)
• M7: 5,566,537 km (0.109 R)
• M8: 5,929,461 km (0.077 R)
• M9: 6,308,393 km (0.081 R)
• M10: 7,003,424 km (0.062 R)
• M11: 8,610,405 km (0.031 R)
• M12: 10,414,106 km (0.079 R)
• M13: 11,080,565 km (0.109 R)
• M14: 11,973,066 km (0.073 R)
• M15: 12,580,583 km (0.107 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 19,351 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit