🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194

Radius: 8.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 13.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,970,335 km

• M1: 100,679 km (0.111 R)
• M2: 398,529 km (0.054 R)
• M3: 721,511 km (0.106 R)
• M4: 1,007,242 km (0.093 R)
• M5: 1,326,185 km (0.067 R)
• M6: 1,787,545 km (0.076 R)
• M7: 2,274,785 km (0.08 R)
• M8: 2,542,715 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.1

Radius: 15

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.5 AU - 0.64 AU

Year: 287 Days

Day: 14.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 17,970,335 km

• M1: 186,549 km (0.098 R)
• M2: 709,991 km (0.077 R)
• M3: 2,024,508 km (0.106 R)
• M4: 2,846,399 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988

Radius: 11.3

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.55 AU - 0.71 AU

Year: 333 Days

Day: 14.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,970,335 km

• M1: 140,622 km (0.095 R)
• M2: 673,041 km (0.057 R)
• M3: 1,065,586 km (0.107 R)
• M4: 1,508,395 km (0.097 R)
• M5: 1,961,078 km (0.099 R)
• M6: 2,817,078 km (0.093 R)
• M7: 3,234,456 km (0.106 R)
• M8: 4,742,253 km (0.081 R)
• M9: 5,179,527 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.1

Radius: 9.6

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.95 AU - 1.15 AU

Year: 717 Days

Day: 6.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,970,335 km

• M1: 119,379 km (0.104 R)
• M2: 486,343 km (0.119 R)
• M3: 832,662 km (0.083 R)
• M4: 1,238,371 km (0.05 R)
• M5: 1,610,271 km (0.045 R)
• M6: 2,500,678 km (0.094 R)
• M7: 3,163,097 km (0.107 R)
• M8: 3,662,455 km (0.115 R)
• M9: 4,258,154 km (0.061 R)
• M10: 5,936,941 km (0.093 R)
• M11: 6,339,210 km (0.069 R)
• M12: 6,698,245 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.5

Radius: 11.6

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.04 AU - 1.48 AU

Year: 943 Days

Day: 14.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 94.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,970,335 km

• M1: 144,512 km (0.058 R)
• M2: 646,263 km (0.106 R)
• M3: 1,486,105 km (0.069 R)
• M4: 2,048,444 km (0.065 R)
• M5: 3,115,525 km (0.094 R)
• M6: 3,499,543 km (0.05 R)
• M7: 3,915,275 km (0.058 R)
• M8: 4,996,868 km (0.028 R)
• M9: 5,505,800 km (0.081 R)
• M10: 5,963,420 km (0.064 R)
• M11: 7,440,848 km (0.071 R)
• M12: 10,498,031 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.5

Radius: 9

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.27 AU - 1.47 AU

Year: 1069 Days

Day: 9.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,970,335 km

• M1: 111,899 km (0.116 R)
• M2: 442,361 km (0.085 R)
• M3: 1,144,573 km (0.055 R)
• M4: 1,516,922 km (0.063 R)
• M5: 1,894,358 km (0.087 R)
• M6: 2,544,361 km (0.07 R)
• M7: 3,160,105 km (0.105 R)
• M8: 4,185,150 km (0.09 R)
• M9: 4,952,438 km (0.075 R)
• M10: 5,417,537 km (0.068 R)
• M11: 6,719,637 km (0.11 R)
• M12: 7,575,487 km (0.095 R)
• M13: 7,892,933 km (0.116 R)
• M14: 8,219,206 km (0.093 R)
• M15: 8,580,635 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.4

Radius: 9.5

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.56 AU - 2.18 AU

Year: 1705 Days

Day: 5.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 17,970,335 km

• M1: 118,332 km (0.12 R)
• M2: 433,684 km (0.106 R)
• M3: 904,319 km (0.032 R)
• M4: 1,366,427 km (0.102 R)
• M5: 1,880,296 km (0.112 R)
• M6: 2,308,295 km (0.09 R)
• M7: 3,377,920 km (0.081 R)
• M8: 3,757,599 km (0.104 R)
• M9: 4,262,642 km (0.057 R)
• M10: 5,005,694 km (0.12 R)
• M11: 5,930,060 km (0.082 R)
• M12: 7,495,452 km (0.04 R)
• M13: 8,023,682 km (0.082 R)
• M14: 8,639,427 km (0.116 R)
• M15: 9,220,166 km (0.112 R)
• M16: 10,786,306 km (0.046 R)
• M17: 11,345,802 km (0.042 R)
• M18: 12,280,938 km (0.027 R)
• M19: 12,767,430 km (0.072 R)
• M20: 13,224,601 km (0.119 R)
• M21: 13,735,628 km (0.11 R)
• M22: 14,616,759 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.3

Radius: 11.4

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.11 AU - 2.13 AU

Year: 2058 Days

Day: 7.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,970,335 km

• M1: 141,819 km (0.076 R)
• M2: 589,864 km (0.105 R)
• M3: 1,085,781 km (0.098 R)
• M4: 1,444,816 km (0.114 R)
• M5: 2,100,504 km (0.08 R)
• M6: 3,027,861 km (0.09 R)
• M7: 3,538,588 km (0.035 R)
• M8: 4,350,156 km (0.116 R)
• M9: 4,753,024 km (0.092 R)
• M10: 5,322,243 km (0.103 R)
• M11: 5,980,624 km (0.103 R)
• M12: 9,559,753 km (0.058 R)
• M13: 10,117,154 km (0.113 R)
• M14: 10,696,248 km (0.091 R)
• M15: 11,502,580 km (0.1 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.6

Radius: 12.1

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.17 AU - 3.25 AU

Year: 3835 Days

Day: 6.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 17,970,335 km

• M1: 150,645 km (0.058 R)
• M2: 534,513 km (0.087 R)
• M3: 962,363 km (0.104 R)
• M4: 1,582,446 km (0.09 R)
• M5: 2,488,561 km (0.037 R)
• M6: 2,951,566 km (0.083 R)
• M7: 3,796,495 km (0.12 R)
• M8: 4,390,847 km (0.087 R)
• M9: 6,050,187 km (0.057 R)
• M10: 6,432,858 km (0.039 R)
• M11: 8,559,691 km (0.12 R)
• M12: 9,782,953 km (0.046 R)
• M13: 10,689,217 km (0.085 R)
• M14: 11,650,682 km (0.068 R)
• M15: 12,479,454 km (0.064 R)
• M16: 13,695,386 km (0.073 R)
• M17: 14,618,554 km (0.065 R)
• M18: 17,401,075 km (0.113 R)
• M19: 22,629,371 km (0.115 R)
• M20: 23,483,874 km (0.047 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.3

Radius: 4.4

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.95 AU - 8.33 AU

Year: 12723 Days

Day: 23.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,970,335 km

• M1: 54,753 km (0.051 R)
• M2: 897,587 km (0.035 R)
• M3: 1,381,985 km (0.084 R)
• M4: 1,962,724 km (0.12 R)
• M5: 4,513,218 km (0.06 R)
• M6: 4,929,549 km (0.109 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 197 - 16,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit