🌌 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: 126.7

Radius: 14.1

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.69 AU - 0.73 AU

Year: 380 Days

Day: 12.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,589,206 km

• M1: 175,329 km (0.028 R)
• M2: 616,493 km (0.096 R)
• M3: 1,166,115 km (0.076 R)
• M4: 1,606,382 km (0.11 R)
• M5: 2,087,339 km (0.108 R)
• M6: 2,564,556 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.2

Radius: 11.6

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.66 AU - 0.8 AU

Year: 397 Days

Day: 8.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,589,206 km

• M1: 145,708 km (0.069 R)
• M2: 716,723 km (0.107 R)
• M3: 1,080,545 km (0.101 R)
• M4: 1,505,104 km (0.032 R)
• M5: 1,945,371 km (0.114 R)
• M6: 2,327,294 km (0.113 R)
• M7: 2,694,856 km (0.1 R)
• M8: 3,256,596 km (0.033 R)
• M9: 3,847,657 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.4

Radius: 9.6

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.38 AU - 2.24 AU

Year: 1548 Days

Day: 8.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,589,206 km

• M1: 119,379 km (0.048 R)
• M2: 532,868 km (0.118 R)
• M3: 1,044,792 km (0.101 R)
• M4: 1,360,443 km (0.089 R)
• M5: 1,892,114 km (0.119 R)
• M6: 2,402,093 km (0.112 R)
• M7: 2,839,966 km (0.115 R)
• M8: 4,251,272 km (0.115 R)
• M9: 4,912,345 km (0.095 R)
• M10: 5,660,035 km (0.087 R)
• M11: 6,081,901 km (0.117 R)
• M12: 6,546,403 km (0.097 R)
• M13: 6,921,295 km (0.11 R)
• M14: 7,714,313 km (0.081 R)
• M15: 8,284,281 km (0.112 R)
• M16: 8,618,782 km (0.081 R)
• M17: 9,042,742 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.5

Radius: 10.6

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.65 AU - 2.37 AU

Year: 1812 Days

Day: 7.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,589,206 km

• M1: 131,796 km (0.071 R)
• M2: 522,396 km (0.043 R)
• M3: 900,579 km (0.119 R)
• M4: 1,351,168 km (0.091 R)
• M5: 1,878,201 km (0.07 R)
• M6: 2,330,286 km (0.072 R)
• M7: 2,840,714 km (0.1 R)
• M8: 3,301,775 km (0.108 R)
• M9: 3,745,631 km (0.105 R)
• M10: 4,087,014 km (0.056 R)
• M11: 4,657,281 km (0.061 R)
• M12: 5,052,818 km (0.103 R)
• M13: 5,578,953 km (0.111 R)
• M14: 7,042,469 km (0.103 R)
• M15: 9,228,543 km (0.106 R)
• M16: 12,762,045 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.7

Radius: 11.8

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.78 AU - 2.84 AU

Year: 2232 Days

Day: 12.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,589,206 km

• M1: 154,086 km (0.05 R)
• M2: 619,036 km (0.038 R)
• M3: 1,250,489 km (0.052 R)
• M4: 2,122,345 km (0.115 R)
• M5: 2,588,791 km (0.103 R)
• M6: 3,033,546 km (0.082 R)
• M7: 5,001,057 km (0.051 R)
• M8: 6,057,068 km (0.115 R)
• M9: 6,540,718 km (0.089 R)
• M10: 7,302,770 km (0.119 R)
• M11: 7,705,487 km (0.069 R)
• M12: 8,198,263 km (0.112 R)
• M13: 8,738,311 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.3

Radius: 14.7

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.55 AU - 5.89 AU

Year: 6520 Days

Day: 8.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,589,206 km

• M1: 183,257 km (0.114 R)
• M2: 950,246 km (0.114 R)
• M3: 1,616,704 km (0.06 R)
• M4: 2,191,010 km (0.041 R)
• M5: 2,756,939 km (0.085 R)
• M6: 3,781,236 km (0.119 R)
• M7: 4,856,545 km (0.113 R)
• M8: 5,340,494 km (0.103 R)
• M9: 6,664,884 km (0.057 R)
• M10: 8,573,155 km (0.085 R)
• M11: 11,484,778 km (0.063 R)
• M12: 20,587,809 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 731.3

Radius: 5.7

Gravity: 22.51 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.3 AU - 6.94 AU

Year: 9626 Days

Day: 16.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,589,206 km

• M1: 81,680 km (0.109 R)
• M2: 358,436 km (0.11 R)
• M3: 880,383 km (0.11 R)
• M4: 1,073,514 km (0.085 R)
• M5: 1,424,022 km (0.052 R)
• M6: 2,012,241 km (0.105 R)
• M7: 2,987,769 km (0.118 R)
• M8: 3,192,269 km (0.11 R)
• M9: 5,511,634 km (0.113 R)
• M10: 6,104,042 km (0.095 R)
• M11: 6,661,144 km (0.112 R)
• M12: 7,050,996 km (0.105 R)
• M13: 7,455,958 km (0.092 R)
• M14: 7,962,197 km (0.111 R)
• M15: 8,672,488 km (0.109 R)
• M16: 9,766,198 km (0.075 R)
• M17: 12,749,179 km (0.073 R)
• M18: 13,595,604 km (0.1 R)
• M19: 14,350,176 km (0.078 R)
• M20: 15,874,279 km (0.104 R)
• M21: 18,471,148 km (0.066 R)
• M22: 23,584,104 km (0.117 R)
• M23: 24,214,659 km (0.085 R)
• M24: 26,752,438 km (0.078 R)
• M25: 26,947,214 km (0.055 R)
• M26: 27,438,344 km (0.031 R)
• M27: 29,878,584 km (0.092 R)
• M28: 30,829,877 km (0.112 R)
• M29: 34,032,169 km (0.025 R)
• M30: 37,085,761 km (0.119 R)
• M31: 37,693,278 km (0.078 R)
• M32: 43,462,071 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.3

Radius: 6.3

Gravity: 14.97 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 8.24 AU - 11.42 AU

Year: 19596 Days

Day: 19.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,589,206 km

• M1: 78,389 km (0.089 R)
• M2: 278,850 km (0.111 R)
• M3: 641,924 km (0.106 R)
• M4: 5,490,840 km (0.1 R)
• M5: 8,857,241 km (0.106 R)
• M6: 10,485,464 km (0.081 R)
• M7: 10,724,671 km (0.095 R)
• M8: 13,391,553 km (0.094 R)
• M9: 16,793,707 km (0.118 R)
• M10: 21,203,254 km (0.069 R)
• M11: 23,366,589 km (0.086 R)
• M12: 25,349,808 km (0.111 R)
• M13: 28,938,960 km (0.049 R)
• M14: 37,801,288 km (0.077 R)
• M15: 42,614,749 km (0.104 R)
• M16: 43,377,847 km (0.029 R)
• M17: 60,235,583 km (0.116 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 17,172 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit