🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.4

Radius: 10.7

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.73 AU - 0.83 AU

Year: 459 Days

Day: 5.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,557,886 km

• M1: 132,993 km (0.073 R)
• M2: 480,209 km (0.11 R)
• M3: 844,929 km (0.112 R)
• M4: 1,752,838 km (0.107 R)
• M5: 2,093,173 km (0.028 R)
• M6: 2,468,664 km (0.119 R)
• M7: 2,836,824 km (0.076 R)
• M8: 3,299,531 km (0.105 R)
• M9: 5,216,627 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.7

Radius: 12.5

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.78 AU - 0.9 AU

Year: 513 Days

Day: 10 Hours

Environment

Temp: -170 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,557,886 km

• M1: 156,031 km (0.085 R)
• M2: 592,856 km (0.103 R)
• M3: 1,486,404 km (0.069 R)
• M4: 1,929,364 km (0.086 R)
• M5: 2,966,825 km (0.081 R)
• M6: 3,455,112 km (0.119 R)
• M7: 3,916,023 km (0.056 R)
• M8: 4,715,474 km (0.099 R)
• M9: 5,334,211 km (0.119 R)
• M10: 5,776,423 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.9

Radius: 11.6

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.83 AU - 1.23 AU

Year: 697 Days

Day: 5.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,557,886 km

• M1: 144,212 km (0.039 R)
• M2: 516,412 km (0.094 R)
• M3: 1,544,897 km (0.089 R)
• M4: 1,909,318 km (0.065 R)
• M5: 2,273,439 km (0.115 R)
• M6: 2,794,937 km (0.116 R)
• M7: 3,767,922 km (0.114 R)
• M8: 5,418,136 km (0.12 R)
• M9: 5,817,562 km (0.12 R)
• M10: 6,453,802 km (0.075 R)
• M11: 7,050,697 km (0.114 R)
• M12: 7,417,511 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.6

Radius: 11.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.06 AU - 1.08 AU

Year: 738 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,557,886 km

• M1: 144,960 km (0.087 R)
• M2: 684,410 km (0.082 R)
• M3: 1,047,484 km (0.066 R)
• M4: 1,431,053 km (0.103 R)
• M5: 1,983,817 km (0.11 R)
• M6: 2,362,300 km (0.073 R)
• M7: 2,727,020 km (0.069 R)
• M8: 3,268,414 km (0.059 R)
• M9: 4,028,521 km (0.119 R)
• M10: 4,871,804 km (0.11 R)
• M11: 5,553,073 km (0.039 R)
• M12: 6,059,911 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.8

Radius: 8.2

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.04 AU - 1.58 AU

Year: 1000 Days

Day: 9 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,557,886 km

• M1: 102,175 km (0.087 R)
• M2: 406,308 km (0.086 R)
• M3: 681,717 km (0.027 R)
• M4: 937,979 km (0.085 R)
• M5: 1,524,103 km (0.057 R)
• M6: 2,033,933 km (0.102 R)
• M7: 2,713,107 km (0.117 R)
• M8: 3,448,979 km (0.12 R)
• M9: 4,600,135 km (0.115 R)
• M10: 4,992,530 km (0.073 R)
• M11: 5,583,441 km (0.104 R)
• M12: 8,421,612 km (0.097 R)
• M13: 8,873,846 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.7

Radius: 11.5

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.22 AU - 1.94 AU

Year: 1324 Days

Day: 11.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,557,886 km

• M1: 143,614 km (0.035 R)
• M2: 513,121 km (0.096 R)
• M3: 873,053 km (0.108 R)
• M4: 1,698,085 km (0.109 R)
• M5: 3,140,658 km (0.075 R)
• M6: 3,678,163 km (0.042 R)
• M7: 4,113,792 km (0.102 R)
• M8: 4,972,035 km (0.03 R)
• M9: 5,542,003 km (0.12 R)
• M10: 6,078,461 km (0.092 R)
• M11: 7,084,806 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.5

Radius: 3.7

Gravity: 52.78 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.2 AU - 8.56 AU

Year: 14751 Days

Day: 24.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 39,557,886 km

• M1: 46,076 km (0.029 R)
• M2: 246,687 km (0.113 R)
• M3: 426,952 km (0.081 R)
• M4: 765,642 km (0.082 R)
• M5: 975,079 km (0.061 R)
• M6: 1,131,110 km (0.1 R)
• M7: 1,586,934 km (0.068 R)
• M8: 1,838,558 km (0.094 R)
• M9: 2,234,992 km (0.106 R)
• M10: 2,662,992 km (0.097 R)
• M11: 3,793,802 km (0.12 R)
• M12: 3,910,339 km (0.062 R)
• M13: 4,496,762 km (0.093 R)
• M14: 5,175,189 km (0.107 R)
• M15: 5,803,350 km (0.11 R)
• M16: 10,557,571 km (0.118 R)
• M17: 10,846,893 km (0.087 R)
• M18: 11,320,669 km (0.076 R)
• M19: 11,870,142 km (0.053 R)
• M20: 14,246,056 km (0.079 R)
• M21: 14,457,288 km (0.045 R)
• M22: 15,545,014 km (0.045 R)
• M23: 17,477,070 km (0.114 R)
• M24: 18,794,130 km (0.099 R)
• M25: 22,946,668 km (0.063 R)
• M26: 27,236,686 km (0.063 R)
• M27: 29,798,101 km (0.081 R)
• M28: 30,491,786 km (0.062 R)
• M29: 32,031,597 km (0.078 R)
• M30: 32,515,546 km (0.119 R)
• M31: 37,895,684 km (0.115 R)
• M32: 40,231,954 km (0.11 R)
• M33: 43,543,153 km (0.084 R)
• M34: 45,189,178 km (0.08 R)
• M35: 47,499,718 km (0.111 R)
• M36: 52,187,965 km (0.099 R)
• M37: 53,873,484 km (0.042 R)
• M38: 62,847,561 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136.6

Radius: 7.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 6.65 AU - 10.53 AU

Year: 16789 Days

Day: 22.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,557,886 km

• M1: 111,301 km (0.095 R)
• M2: 364,570 km (0.04 R)
• M3: 662,868 km (0.108 R)
• M4: 1,220,419 km (0.081 R)
• M5: 1,654,552 km (0.09 R)
• M6: 1,915,601 km (0.089 R)
• M7: 2,394,912 km (0.106 R)
• M8: 3,013,649 km (0.045 R)
• M9: 4,761,401 km (0.104 R)
• M10: 5,639,092 km (0.087 R)
• M11: 5,899,242 km (0.097 R)
• M12: 6,800,420 km (0.119 R)
• M13: 7,058,028 km (0.085 R)
• M14: 7,950,678 km (0.053 R)
• M15: 12,013,457 km (0.119 R)
• M16: 13,627,169 km (0.119 R)
• M17: 14,455,792 km (0.039 R)
• M18: 20,297,289 km (0.055 R)
• M19: 25,634,044 km (0.098 R)
• M20: 31,938,697 km (0.089 R)
• M21: 32,976,008 km (0.118 R)
• M22: 36,334,480 km (0.089 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 18,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit