🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.5

Radius: 14.7

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.54 AU - 0.76 AU

Year: 355 Days

Day: 9.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,805,847 km

• M1: 182,809 km (0.067 R)
• M2: 691,142 km (0.076 R)
• M3: 1,184,217 km (0.085 R)
• M4: 1,684,173 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.3

Radius: 13.1

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.51 AU - 0.81 AU

Year: 364 Days

Day: 13.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,805,847 km

• M1: 163,211 km (0.118 R)
• M2: 617,989 km (0.102 R)
• M3: 1,037,611 km (0.081 R)
• M4: 1,528,591 km (0.11 R)
• M5: 2,200,285 km (0.107 R)
• M6: 2,733,303 km (0.086 R)
• M7: 3,231,912 km (0.108 R)
• M8: 3,876,081 km (0.089 R)
• M9: 4,590,859 km (0.079 R)
• M10: 5,060,746 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.9

Radius: 14.7

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.58 AU - 0.94 AU

Year: 449 Days

Day: 11.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,805,847 km

• M1: 183,257 km (0.045 R)
• M2: 859,141 km (0.092 R)
• M3: 1,543,850 km (0.107 R)
• M4: 2,027,650 km (0.05 R)
• M5: 2,697,549 km (0.087 R)
• M6: 3,246,274 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 8.1

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.85 AU - 1.37 AU

Year: 793 Days

Day: 12.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,805,847 km

• M1: 100,679 km (0.067 R)
• M2: 458,069 km (0.07 R)
• M3: 762,800 km (0.081 R)
• M4: 1,105,229 km (0.111 R)
• M5: 1,436,888 km (0.113 R)
• M6: 1,967,810 km (0.091 R)
• M7: 2,234,095 km (0.086 R)
• M8: 2,557,226 km (0.105 R)
• M9: 2,971,612 km (0.07 R)
• M10: 3,747,277 km (0.087 R)
• M11: 4,472,528 km (0.061 R)
• M12: 5,023,347 km (0.099 R)
• M13: 5,674,846 km (0.108 R)
• M14: 6,734,896 km (0.105 R)
• M15: 7,233,955 km (0.025 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.7

Radius: 14.7

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.56 AU - 2.6 AU

Year: 2035 Days

Day: 14.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,805,847 km

• M1: 182,809 km (0.097 R)
• M2: 1,201,869 km (0.084 R)
• M3: 1,674,000 km (0.083 R)
• M4: 2,361,253 km (0.075 R)
• M5: 3,752,812 km (0.063 R)
• M6: 4,487,338 km (0.083 R)
• M7: 5,316,409 km (0.025 R)
• M8: 6,709,614 km (0.112 R)
• M9: 8,092,048 km (0.089 R)
• M10: 9,092,559 km (0.075 R)
• M11: 9,555,564 km (0.092 R)
• M12: 13,169,549 km (0.113 R)
• M13: 14,419,888 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.3

Radius: 10.3

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.27 AU - 2.61 AU

Year: 2585 Days

Day: 10.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,805,847 km

• M1: 128,056 km (0.116 R)
• M2: 819,946 km (0.081 R)
• M3: 1,265,448 km (0.103 R)
• M4: 1,793,080 km (0.075 R)
• M5: 2,252,495 km (0.059 R)
• M6: 2,672,566 km (0.092 R)
• M7: 3,080,819 km (0.107 R)
• M8: 3,444,042 km (0.112 R)
• M9: 4,752,425 km (0.101 R)
• M10: 5,285,442 km (0.104 R)
• M11: 6,083,248 km (0.084 R)
• M12: 7,183,839 km (0.11 R)
• M13: 7,826,661 km (0.043 R)
• M14: 9,532,975 km (0.099 R)
• M15: 12,028,566 km (0.04 R)
• M16: 12,641,918 km (0.094 R)
• M17: 14,470,452 km (0.112 R)
• M18: 16,320,380 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.9

Radius: 4.6

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 6.37 AU - 10.47 AU

Year: 16571 Days

Day: 20.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,805,847 km

• M1: 57,296 km (0.085 R)
• M2: 904,618 km (0.046 R)
• M3: 2,206,120 km (0.083 R)
• M4: 2,530,598 km (0.069 R)
• M5: 2,784,316 km (0.113 R)
• M6: 3,795,298 km (0.101 R)
• M7: 4,563,633 km (0.059 R)
• M8: 5,120,286 km (0.078 R)
• M9: 6,297,023 km (0.093 R)
• M10: 8,858,887 km (0.06 R)
• M11: 9,170,649 km (0.041 R)
• M12: 24,295,442 km (0.069 R)
• M13: 27,449,265 km (0.079 R)
• M14: 32,833,591 km (0.072 R)
• M15: 33,151,935 km (0.096 R)
• M16: 36,109,036 km (0.116 R)
• M17: 36,334,780 km (0.108 R)
• M18: 37,825,522 km (0.114 R)
• M19: 39,715,542 km (0.119 R)
• M20: 40,683,739 km (0.1 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 20,232 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit