🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408

Radius: 11.8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.63 AU - 0.79 AU

Year: 392 Days

Day: 7.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,554,962 km

• M1: 146,905 km (0.072 R)
• M2: 546,930 km (0.06 R)
• M3: 1,546,393 km (0.104 R)
• M4: 2,049,790 km (0.043 R)
• M5: 2,753,947 km (0.077 R)
• M6: 3,178,955 km (0.093 R)
• M7: 3,693,721 km (0.08 R)
• M8: 4,075,495 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.2

Radius: 14.8

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.86 AU - 0.88 AU

Year: 532 Days

Day: 6.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,554,962 km

• M1: 184,005 km (0.117 R)
• M2: 659,427 km (0.09 R)
• M3: 1,174,194 km (0.055 R)
• M4: 1,713,344 km (0.1 R)
• M5: 2,201,632 km (0.105 R)
• M6: 2,755,593 km (0.064 R)
• M7: 3,261,234 km (0.069 R)
• M8: 4,024,482 km (0.093 R)
• M9: 4,638,731 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831

Radius: 10.6

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1 AU - 1.2 AU

Year: 757 Days

Day: 11.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,554,962 km

• M1: 131,796 km (0.097 R)
• M2: 614,847 km (0.089 R)
• M3: 1,639,892 km (0.116 R)
• M4: 2,002,218 km (0.079 R)
• M5: 2,385,936 km (0.119 R)
• M6: 2,723,579 km (0.113 R)
• M7: 3,317,632 km (0.049 R)
• M8: 4,073,550 km (0.096 R)
• M9: 4,817,051 km (0.118 R)
• M10: 5,551,727 km (0.025 R)
• M11: 6,338,312 km (0.053 R)
• M12: 7,128,787 km (0.054 R)
• M13: 8,057,940 km (0.107 R)
• M14: 8,694,778 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.6

Radius: 14

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.39 AU - 1.57 AU

Year: 1181 Days

Day: 10.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,554,962 km

• M1: 174,282 km (0.102 R)
• M2: 645,964 km (0.075 R)
• M3: 1,155,494 km (0.036 R)
• M4: 2,033,185 km (0.094 R)
• M5: 2,553,187 km (0.085 R)
• M6: 3,704,791 km (0.056 R)
• M7: 4,825,429 km (0.1 R)
• M8: 6,578,118 km (0.094 R)
• M9: 7,163,644 km (0.1 R)
• M10: 7,599,273 km (0.097 R)
• M11: 8,217,112 km (0.116 R)
• M12: 9,281,052 km (0.043 R)
• M13: 10,402,737 km (0.113 R)
• M14: 11,301,820 km (0.104 R)
• M15: 11,929,533 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.7

Radius: 15

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.37 AU - 3.47 AU

Year: 3273 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,554,962 km

• M1: 186,549 km (0.057 R)
• M2: 700,268 km (0.078 R)
• M3: 1,681,330 km (0.115 R)
• M4: 2,334,026 km (0.094 R)
• M5: 3,217,850 km (0.094 R)
• M6: 3,729,625 km (0.098 R)
• M7: 4,256,508 km (0.06 R)
• M8: 4,811,816 km (0.097 R)
• M9: 5,772,234 km (0.064 R)
• M10: 6,587,243 km (0.091 R)
• M11: 7,565,314 km (0.104 R)
• M12: 8,135,731 km (0.098 R)
• M13: 10,092,920 km (0.112 R)
• M14: 11,239,288 km (0.068 R)
• M15: 11,903,802 km (0.095 R)
• M16: 13,311,667 km (0.118 R)
• M17: 14,325,492 km (0.114 R)
• M18: 15,154,264 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.5

Radius: 8

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.27 AU - 3.65 AU

Year: 4222 Days

Day: 10 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,554,962 km

• M1: 99,632 km (0.084 R)
• M2: 576,700 km (0.042 R)
• M3: 845,826 km (0.106 R)
• M4: 2,564,407 km (0.079 R)
• M5: 3,103,857 km (0.09 R)
• M6: 3,428,634 km (0.081 R)
• M7: 4,678,973 km (0.088 R)
• M8: 5,058,502 km (0.075 R)
• M9: 5,407,215 km (0.047 R)
• M10: 8,079,631 km (0.102 R)
• M11: 8,980,959 km (0.057 R)
• M12: 11,525,469 km (0.067 R)
• M13: 12,801,987 km (0.058 R)
• M14: 13,356,846 km (0.082 R)
• M15: 15,581,366 km (0.106 R)
• M16: 18,621,793 km (0.069 R)
• M17: 19,334,178 km (0.094 R)
• M18: 20,876,383 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.3

Radius: 9.7

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.3 AU - 6.72 AU

Year: 8485 Days

Day: 14.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,554,962 km

• M1: 122,670 km (0.115 R)
• M2: 489,783 km (0.107 R)
• M3: 856,149 km (0.107 R)
• M4: 1,245,402 km (0.099 R)
• M5: 1,627,176 km (0.114 R)
• M6: 2,631,576 km (0.118 R)
• M7: 3,181,049 km (0.047 R)
• M8: 3,979,902 km (0.118 R)
• M9: 4,399,524 km (0.104 R)
• M10: 5,643,580 km (0.055 R)
• M11: 7,145,692 km (0.103 R)
• M12: 9,030,326 km (0.098 R)
• M13: 10,279,318 km (0.107 R)
• M14: 12,227,382 km (0.106 R)
• M15: 15,087,244 km (0.054 R)
• M16: 17,940,525 km (0.081 R)
• M17: 18,580,205 km (0.09 R)
• M18: 18,942,232 km (0.11 R)
• M19: 21,056,798 km (0.033 R)
• M20: 22,742,616 km (0.069 R)
• M21: 23,073,676 km (0.085 R)
• M22: 26,018,959 km (0.065 R)
• M23: 28,914,875 km (0.096 R)
• M24: 36,230,809 km (0.069 R)
• M25: 39,592,273 km (0.117 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: 255 - 13,241 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit