🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.1

Radius: 13.3

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.82 AU - 0.86 AU

Year: 513 Days

Day: 13 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,787,897 km

• M1: 165,455 km (0.107 R)
• M2: 636,389 km (0.117 R)
• M3: 1,444,966 km (0.115 R)
• M4: 2,020,469 km (0.067 R)
• M5: 3,608,450 km (0.072 R)
• M6: 4,418,672 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.5

Radius: 12.6

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.94 AU - 1 AU

Year: 637 Days

Day: 6.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,787,897 km

• M1: 156,629 km (0.053 R)
• M2: 672,442 km (0.086 R)
• M3: 1,136,495 km (0.109 R)
• M4: 1,738,477 km (0.114 R)
• M5: 2,180,090 km (0.105 R)
• M6: 2,599,413 km (0.116 R)
• M7: 3,122,556 km (0.108 R)
• M8: 3,659,762 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.3

Radius: 8.3

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.48 AU - 1.64 AU

Year: 1299 Days

Day: 6.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,787,897 km

• M1: 103,223 km (0.095 R)
• M2: 682,465 km (0.119 R)
• M3: 1,177,036 km (0.094 R)
• M4: 1,595,611 km (0.086 R)
• M5: 2,143,289 km (0.104 R)
• M6: 4,233,021 km (0.113 R)
• M7: 5,219,619 km (0.059 R)
• M8: 5,545,743 km (0.104 R)
• M9: 6,171,511 km (0.112 R)
• M10: 8,088,458 km (0.107 R)
• M11: 8,921,568 km (0.068 R)
• M12: 10,026,348 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.6

Radius: 8.1

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.52 AU - 1.76 AU

Year: 1401 Days

Day: 14.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,787,897 km

• M1: 100,679 km (0.08 R)
• M2: 529,277 km (0.119 R)
• M3: 890,257 km (0.111 R)
• M4: 1,196,633 km (0.053 R)
• M5: 1,547,141 km (0.034 R)
• M6: 1,814,772 km (0.087 R)
• M7: 2,327,144 km (0.103 R)
• M8: 2,987,469 km (0.105 R)
• M9: 3,391,683 km (0.055 R)
• M10: 3,766,874 km (0.114 R)
• M11: 4,327,866 km (0.104 R)
• M12: 4,619,283 km (0.083 R)
• M13: 5,323,291 km (0.101 R)
• M14: 5,636,997 km (0.087 R)
• M15: 6,232,846 km (0.099 R)
• M16: 6,772,894 km (0.107 R)
• M17: 7,318,328 km (0.047 R)
• M18: 8,723,949 km (0.109 R)
• M19: 9,013,571 km (0.096 R)
• M20: 9,551,226 km (0.113 R)
• M21: 10,494,590 km (0.075 R)
• M22: 10,888,780 km (0.106 R)
• M23: 11,395,468 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.5

Radius: 8.8

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.37 AU - 2.55 AU

Year: 2573 Days

Day: 8.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,787,897 km

• M1: 109,506 km (0.112 R)
• M2: 409,599 km (0.04 R)
• M3: 844,630 km (0.105 R)
• M4: 1,240,166 km (0.09 R)
• M5: 1,563,447 km (0.115 R)
• M6: 2,287,501 km (0.051 R)
• M7: 2,672,716 km (0.116 R)
• M8: 3,067,654 km (0.116 R)
• M9: 3,519,290 km (0.079 R)
• M10: 4,665,658 km (0.084 R)
• M11: 5,098,146 km (0.1 R)
• M12: 5,632,210 km (0.098 R)
• M13: 6,017,425 km (0.088 R)
• M14: 8,475,767 km (0.08 R)
• M15: 9,051,419 km (0.117 R)
• M16: 10,167,868 km (0.113 R)
• M17: 10,740,080 km (0.102 R)
• M18: 11,053,787 km (0.067 R)
• M19: 11,333,385 km (0.107 R)
• M20: 12,370,697 km (0.101 R)
• M21: 14,253,984 km (0.103 R)
• M22: 15,264,069 km (0.064 R)
• M23: 15,963,290 km (0.101 R)
• M24: 17,318,497 km (0.111 R)
• M25: 18,918,895 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.8

Radius: 12.5

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.79 AU - 6.15 AU

Year: 7389 Days

Day: 13.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,787,897 km

• M1: 155,432 km (0.052 R)
• M2: 618,737 km (0.12 R)
• M3: 1,048,382 km (0.063 R)
• M4: 1,516,623 km (0.064 R)
• M5: 2,255,337 km (0.112 R)
• M6: 2,698,895 km (0.118 R)
• M7: 3,095,629 km (0.08 R)
• M8: 5,035,016 km (0.12 R)
• M9: 6,929,373 km (0.118 R)
• M10: 7,720,297 km (0.043 R)
• M11: 9,259,659 km (0.105 R)
• M12: 10,650,920 km (0.054 R)
• M13: 12,499,052 km (0.087 R)
• M14: 13,160,274 km (0.109 R)
• M15: 14,915,357 km (0.114 R)
• M16: 16,040,632 km (0.104 R)
• M17: 16,689,886 km (0.044 R)
• M18: 17,491,881 km (0.063 R)
• M19: 18,110,169 km (0.102 R)
• M20: 19,609,738 km (0.076 R)
• M21: 22,210,497 km (0.055 R)
• M22: 22,854,516 km (0.065 R)
• M23: 26,262,505 km (0.098 R)
• M24: 26,892,012 km (0.081 R)
• M25: 29,126,705 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.7

Radius: 11.5

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.21 AU - 6.33 AU

Year: 8068 Days

Day: 12.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,787,897 km

• M1: 143,016 km (0.07 R)
• M2: 630,405 km (0.098 R)
• M3: 1,856,510 km (0.108 R)
• M4: 3,241,636 km (0.094 R)
• M5: 6,860,858 km (0.102 R)
• M6: 7,948,284 km (0.099 R)
• M7: 10,235,187 km (0.095 R)
• M8: 10,601,104 km (0.104 R)
• M9: 11,262,326 km (0.062 R)
• M10: 14,641,592 km (0.04 R)
• M11: 16,499,299 km (0.055 R)
• M12: 18,441,977 km (0.096 R)
• M13: 20,822,976 km (0.112 R)
• M14: 22,777,024 km (0.095 R)
• M15: 26,786,696 km (0.098 R)
• M16: 29,277,500 km (0.085 R)
• M17: 33,297,344 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371

Radius: 12.5

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.51 AU - 5.63 AU

Year: 8766 Days

Day: 14.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,787,897 km

• M1: 178,171 km (0.085 R)
• M2: 718,967 km (0.032 R)
• M3: 1,519,166 km (0.107 R)
• M4: 2,110,676 km (0.115 R)
• M5: 2,852,383 km (0.095 R)
• M6: 3,253,305 km (0.103 R)
• M7: 3,950,132 km (0.11 R)
• M8: 5,165,614 km (0.098 R)
• M9: 7,362,609 km (0.117 R)
• M10: 8,938,622 km (0.098 R)
• M11: 9,761,411 km (0.05 R)
• M12: 12,641,170 km (0.062 R)
• M13: 15,429,674 km (0.031 R)
• M14: 18,399,192 km (0.093 R)
• M15: 22,898,796 km (0.102 R)
• M16: 23,458,143 km (0.097 R)
• M17: 26,044,989 km (0.086 R)
• M18: 26,479,422 km (0.112 R)
• M19: 30,705,861 km (0.03 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 12,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit