🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.61 AU - 0.67 AU

Year: 336 Days

Day: 36.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.5

Radius: 9.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.01 AU - 1.03 AU

Year: 676 Days

Day: 10.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,533,507 km

• M1: 118,182 km (0.099 R)
• M2: 548,426 km (0.084 R)
• M3: 929,900 km (0.117 R)
• M4: 1,391,260 km (0.1 R)
• M5: 1,703,621 km (0.116 R)
• M6: 2,646,536 km (0.097 R)
• M7: 3,206,630 km (0.112 R)
• M8: 3,607,104 km (0.117 R)
• M9: 3,990,822 km (0.103 R)
• M10: 4,401,768 km (0.107 R)
• M11: 4,812,564 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70

Radius: 9.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.79 AU - 2.51 AU

Year: 2068 Days

Day: 8.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,533,507 km

• M1: 123,119 km (0.116 R)
• M2: 556,504 km (0.041 R)
• M3: 960,269 km (0.097 R)
• M4: 1,514,379 km (0.112 R)
• M5: 1,882,689 km (0.069 R)
• M6: 2,768,907 km (0.071 R)
• M7: 3,261,682 km (0.038 R)
• M8: 3,854,539 km (0.036 R)
• M9: 4,646,360 km (0.076 R)
• M10: 5,115,649 km (0.096 R)
• M11: 5,974,490 km (0.078 R)
• M12: 6,408,174 km (0.074 R)
• M13: 7,836,984 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.8

Radius: 10.8

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.88 AU - 4.34 AU

Year: 4500 Days

Day: 12 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,533,507 km

• M1: 134,339 km (0.09 R)
• M2: 721,511 km (0.039 R)
• M3: 1,104,331 km (0.047 R)
• M4: 2,530,298 km (0.085 R)
• M5: 2,903,695 km (0.111 R)
• M6: 3,543,375 km (0.115 R)
• M7: 4,455,174 km (0.11 R)
• M8: 5,385,224 km (0.086 R)
• M9: 6,092,822 km (0.078 R)
• M10: 6,648,429 km (0.089 R)
• M11: 7,495,751 km (0.08 R)
• M12: 8,881,326 km (0.112 R)
• M13: 9,635,000 km (0.117 R)
• M14: 10,147,373 km (0.086 R)
• M15: 11,055,881 km (0.083 R)
• M16: 12,892,494 km (0.1 R)
• M17: 14,207,908 km (0.083 R)
• M18: 19,363,948 km (0.053 R)
• M19: 20,308,360 km (0.074 R)
• M20: 20,824,622 km (0.106 R)
• M21: 23,256,335 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.7

Radius: 14.8

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.06 AU - 4.62 AU

Year: 4936 Days

Day: 12.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,533,507 km

• M1: 184,155 km (0.117 R)
• M2: 823,237 km (0.078 R)
• M3: 1,766,452 km (0.061 R)
• M4: 2,494,096 km (0.114 R)
• M5: 3,436,861 km (0.039 R)
• M6: 4,382,619 km (0.118 R)
• M7: 5,325,983 km (0.067 R)
• M8: 5,816,814 km (0.118 R)
• M9: 6,757,186 km (0.113 R)
• M10: 8,241,795 km (0.092 R)
• M11: 8,782,293 km (0.059 R)
• M12: 9,387,566 km (0.104 R)
• M13: 9,934,495 km (0.114 R)
• M14: 10,682,036 km (0.06 R)
• M15: 15,745,475 km (0.065 R)
• M16: 18,337,557 km (0.116 R)
• M17: 20,216,357 km (0.115 R)
• M18: 20,705,392 km (0.112 R)
• M19: 21,562,439 km (0.085 R)
• M20: 23,577,073 km (0.096 R)
• M21: 25,632,997 km (0.088 R)
• M22: 26,288,983 km (0.107 R)
• M23: 30,463,063 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.4

Radius: 8.8

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3 AU - 4.86 AU

Year: 5111 Days

Day: 8.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,533,507 km

• M1: 110,852 km (0.038 R)
• M2: 480,060 km (0.091 R)
• M3: 966,402 km (0.106 R)
• M4: 1,360,443 km (0.077 R)
• M5: 2,047,247 km (0.05 R)
• M6: 2,756,191 km (0.105 R)
• M7: 3,130,335 km (0.115 R)
• M8: 3,558,485 km (0.065 R)
• M9: 3,850,948 km (0.095 R)
• M10: 4,296,900 km (0.095 R)
• M11: 5,004,198 km (0.091 R)
• M12: 5,591,071 km (0.106 R)
• M13: 5,930,060 km (0.113 R)
• M14: 6,464,274 km (0.109 R)
• M15: 7,870,643 km (0.116 R)
• M16: 9,003,847 km (0.08 R)
• M17: 10,452,254 km (0.098 R)
• M18: 10,751,001 km (0.101 R)
• M19: 11,143,396 km (0.061 R)
• M20: 13,702,417 km (0.099 R)
• M21: 14,009,093 km (0.063 R)
• M22: 15,778,087 km (0.097 R)
• M23: 16,978,461 km (0.084 R)
• M24: 19,431,567 km (0.084 R)
• M25: 19,949,026 km (0.105 R)
• M26: 22,041,750 km (0.065 R)
• M27: 22,463,018 km (0.115 R)
• M28: 25,410,395 km (0.114 R)
• M29: 25,951,491 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.3

Radius: 13.4

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.7 AU - 5.12 AU

Year: 6075 Days

Day: 10.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,533,507 km

• M1: 166,652 km (0.068 R)
• M2: 612,902 km (0.041 R)
• M3: 2,721,335 km (0.118 R)
• M4: 3,273,949 km (0.084 R)
• M5: 4,880,032 km (0.106 R)
• M6: 6,376,609 km (0.081 R)
• M7: 7,176,509 km (0.086 R)
• M8: 10,210,653 km (0.071 R)
• M9: 10,868,585 km (0.105 R)
• M10: 12,744,243 km (0.025 R)
• M11: 14,533,134 km (0.093 R)
• M12: 16,675,675 km (0.086 R)
• M13: 19,161,542 km (0.111 R)
• M14: 23,059,764 km (0.073 R)
• M15: 25,619,533 km (0.096 R)
• M16: 29,853,601 km (0.115 R)
• M17: 32,989,771 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.8

Radius: 11

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.7 AU - 5.52 AU

Year: 7578 Days

Day: 7.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,533,507 km

• M1: 139,874 km (0.077 R)
• M2: 514,168 km (0.072 R)
• M3: 891,005 km (0.096 R)
• M4: 1,350,270 km (0.12 R)
• M5: 1,858,903 km (0.057 R)
• M6: 2,209,860 km (0.085 R)
• M7: 2,841,013 km (0.103 R)
• M8: 3,243,880 km (0.118 R)
• M9: 4,035,253 km (0.091 R)
• M10: 4,980,712 km (0.065 R)
• M11: 8,619,231 km (0.109 R)
• M12: 9,105,125 km (0.082 R)
• M13: 9,655,795 km (0.101 R)
• M14: 13,034,612 km (0.105 R)
• M15: 14,276,274 km (0.047 R)
• M16: 15,210,214 km (0.108 R)
• M17: 16,184,545 km (0.11 R)
• M18: 18,042,401 km (0.112 R)
• M19: 18,692,104 km (0.069 R)
• M20: 19,432,315 km (0.114 R)
• M21: 21,770,380 km (0.083 R)
• M22: 24,552,152 km (0.059 R)
• M23: 25,800,995 km (0.08 R)
• M24: 26,257,119 km (0.062 R)
• M25: 28,039,578 km (0.115 R)
• M26: 30,709,451 km (0.099 R)
• M27: 32,053,438 km (0.065 R)
• M28: 33,221,050 km (0.047 R)
• M29: 36,434,861 km (0.067 R)
• M30: 38,058,147 km (0.105 R)
• M31: 40,215,498 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 962.7

Radius: 5.2

Gravity: 35.6 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 8.34 AU - 8.5 AU

Year: 16028 Days

Day: 24.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 73,533,507 km

• M1: 64,776 km (0.086 R)
• M2: 302,786 km (0.085 R)
• M3: 1,510,789 km (0.056 R)
• M4: 1,747,602 km (0.045 R)
• M5: 2,926,882 km (0.106 R)
• M6: 5,430,403 km (0.094 R)
• M7: 5,625,329 km (0.113 R)
• M8: 6,365,838 km (0.105 R)
• M9: 7,451,620 km (0.036 R)
• M10: 8,240,599 km (0.066 R)
• M11: 10,635,212 km (0.093 R)
• M12: 11,126,790 km (0.092 R)
• M13: 11,827,208 km (0.097 R)
• M14: 12,155,126 km (0.082 R)
• M15: 13,315,706 km (0.099 R)
• M16: 15,697,155 km (0.033 R)
• M17: 18,435,394 km (0.095 R)
• M18: 20,055,390 km (0.077 R)
• M19: 21,090,757 km (0.038 R)
• M20: 21,475,971 km (0.084 R)
• M21: 21,865,823 km (0.051 R)
• M22: 24,304,867 km (0.066 R)
• M23: 26,028,085 km (0.1 R)
• M24: 34,528,685 km (0.119 R)
• M25: 35,468,608 km (0.086 R)
• M26: 35,876,561 km (0.093 R)
• M27: 39,253,883 km (0.029 R)
• M28: 39,544,402 km (0.104 R)
• M29: 40,130,078 km (0.107 R)
• M30: 40,573,037 km (0.115 R)
• M31: 41,468,829 km (0.108 R)
• M32: 48,778,480 km (0.042 R)
• M33: 50,302,434 km (0.109 R)
• M34: 54,160,862 km (0.059 R)
• M35: 54,521,094 km (0.077 R)
• M36: 58,023,479 km (0.057 R)
• M37: 66,497,450 km (0.053 R)
• M38: 72,436,935 km (0.094 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 12,815 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit