🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.6

Radius: 9.9

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.67 AU - 0.83 AU

Year: 413 Days

Day: 6.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,965,451 km

• M1: 123,269 km (0.046 R)
• M2: 474,524 km (0.05 R)
• M3: 895,194 km (0.111 R)
• M4: 1,303,147 km (0.085 R)
• M5: 1,742,666 km (0.055 R)
• M6: 2,146,430 km (0.066 R)
• M7: 2,693,061 km (0.098 R)
• M8: 3,597,081 km (0.056 R)
• M9: 4,051,260 km (0.091 R)
• M10: 4,370,352 km (0.047 R)
• M11: 4,781,597 km (0.076 R)
• M12: 5,994,237 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.6

Radius: 11

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.77 AU - 1.03 AU

Year: 543 Days

Day: 14.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,965,451 km

• M1: 136,732 km (0.117 R)
• M2: 520,900 km (0.081 R)
• M3: 1,200,074 km (0.097 R)
• M4: 1,796,820 km (0.101 R)
• M5: 2,369,780 km (0.12 R)
• M6: 2,950,070 km (0.081 R)
• M7: 3,699,705 km (0.048 R)
• M8: 4,367,061 km (0.053 R)
• M9: 4,954,083 km (0.068 R)
• M10: 5,374,154 km (0.076 R)
• M11: 5,941,579 km (0.09 R)
• M12: 6,304,653 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.4

Radius: 14.5

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.05 AU - 1.17 AU

Year: 744 Days

Day: 10.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,965,451 km

• M1: 180,415 km (0.112 R)
• M2: 822,040 km (0.096 R)
• M3: 1,391,559 km (0.12 R)
• M4: 2,044,704 km (0.065 R)
• M5: 3,428,634 km (0.086 R)
• M6: 3,920,063 km (0.072 R)
• M7: 4,426,451 km (0.101 R)
• M8: 4,959,469 km (0.089 R)
• M9: 5,629,218 km (0.093 R)
• M10: 6,135,457 km (0.083 R)
• M11: 6,672,215 km (0.033 R)
• M12: 7,444,289 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.1

Radius: 9.8

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.86 AU - 1.88 AU

Year: 1626 Days

Day: 8.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,965,451 km

• M1: 121,922 km (0.111 R)
• M2: 601,683 km (0.072 R)
• M3: 1,055,563 km (0.112 R)
• M4: 1,515,576 km (0.097 R)
• M5: 1,825,393 km (0.071 R)
• M6: 2,226,764 km (0.101 R)
• M7: 3,387,045 km (0.108 R)
• M8: 3,851,996 km (0.068 R)
• M9: 4,378,730 km (0.09 R)
• M10: 5,213,935 km (0.114 R)
• M11: 5,980,025 km (0.08 R)
• M12: 7,648,790 km (0.042 R)
• M13: 8,543,834 km (0.054 R)
• M14: 9,178,428 km (0.097 R)
• M15: 9,540,754 km (0.066 R)
• M16: 9,912,505 km (0.119 R)
• M17: 12,231,272 km (0.039 R)
• M18: 12,630,099 km (0.091 R)
• M19: 14,225,112 km (0.119 R)
• M20: 15,529,605 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.6

Radius: 11.5

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.21 AU - 2.29 AU

Year: 2146 Days

Day: 7.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,965,451 km

• M1: 143,016 km (0.106 R)
• M2: 553,363 km (0.054 R)
• M3: 987,645 km (0.115 R)
• M4: 1,363,585 km (0.059 R)
• M5: 1,882,240 km (0.105 R)
• M6: 2,259,825 km (0.082 R)
• M7: 2,946,480 km (0.119 R)
• M8: 3,408,288 km (0.117 R)
• M9: 4,436,774 km (0.109 R)
• M10: 5,000,907 km (0.12 R)
• M11: 5,419,033 km (0.074 R)
• M12: 6,900,202 km (0.108 R)
• M13: 7,390,284 km (0.111 R)
• M14: 8,058,837 km (0.09 R)
• M15: 10,234,738 km (0.109 R)
• M16: 10,607,087 km (0.091 R)
• M17: 11,418,656 km (0.066 R)
• M18: 12,948,593 km (0.067 R)
• M19: 14,332,374 km (0.092 R)
• M20: 14,988,510 km (0.028 R)
• M21: 15,420,848 km (0.099 R)
• M22: 16,665,801 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.8

Radius: 14.8

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.54 AU - 2.8 AU

Year: 2774 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,965,451 km

• M1: 184,155 km (0.091 R)
• M2: 703,858 km (0.085 R)
• M3: 1,184,366 km (0.115 R)
• M4: 2,200,884 km (0.091 R)
• M5: 2,982,084 km (0.081 R)
• M6: 3,475,757 km (0.09 R)
• M7: 4,086,565 km (0.047 R)
• M8: 4,699,468 km (0.108 R)
• M9: 5,398,538 km (0.116 R)
• M10: 6,028,944 km (0.079 R)
• M11: 7,158,258 km (0.099 R)
• M12: 8,086,363 km (0.055 R)
• M13: 9,311,719 km (0.115 R)
• M14: 10,182,229 km (0.03 R)
• M15: 11,610,440 km (0.114 R)
• M16: 12,846,268 km (0.077 R)
• M17: 13,308,376 km (0.079 R)
• M18: 13,829,575 km (0.088 R)
• M19: 16,265,178 km (0.076 R)
• M20: 18,915,304 km (0.091 R)
• M21: 19,696,504 km (0.056 R)
• M22: 20,750,421 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.1

Radius: 9.1

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.4 AU - 3.62 AU

Year: 3320 Days

Day: 7.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,965,451 km

• M1: 113,096 km (0.114 R)
• M2: 397,631 km (0.077 R)
• M3: 692,937 km (0.094 R)
• M4: 1,224,758 km (0.118 R)
• M5: 2,433,509 km (0.087 R)
• M6: 6,994,000 km (0.082 R)
• M7: 7,325,808 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.6

Radius: 10.2

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.63 AU - 3.85 AU

Year: 3708 Days

Day: 8.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,965,451 km

• M1: 127,158 km (0.116 R)
• M2: 522,845 km (0.064 R)
• M3: 1,108,670 km (0.057 R)
• M4: 1,489,247 km (0.083 R)
• M5: 1,868,627 km (0.106 R)
• M6: 2,543,762 km (0.11 R)
• M7: 3,688,036 km (0.074 R)
• M8: 4,296,900 km (0.094 R)
• M9: 4,750,331 km (0.11 R)
• M10: 5,199,573 km (0.107 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.1

Radius: 8.8

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.6 AU - 6.84 AU

Year: 8698 Days

Day: 12.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,965,451 km

• M1: 109,655 km (0.11 R)
• M2: 399,277 km (0.118 R)
• M3: 1,149,211 km (0.065 R)
• M4: 1,996,683 km (0.053 R)
• M5: 2,614,372 km (0.108 R)
• M6: 3,458,254 km (0.025 R)
• M7: 3,739,648 km (0.083 R)
• M8: 4,324,126 km (0.087 R)
• M9: 4,703,207 km (0.118 R)
• M10: 11,388,138 km (0.066 R)
• M11: 12,613,045 km (0.115 R)
• M12: 14,361,545 km (0.042 R)
• M13: 14,639,947 km (0.065 R)
• M14: 16,568,413 km (0.112 R)
• M15: 17,561,892 km (0.09 R)
• M16: 18,267,546 km (0.064 R)
• M17: 19,667,183 km (0.106 R)
• M18: 21,715,627 km (0.11 R)
• M19: 22,453,892 km (0.086 R)
• M20: 25,250,325 km (0.115 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: 227 - 13,693 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit