🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.8 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.6

Radius: 14.5

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.58 AU - 1.6 AU

Year: 1337 Days

Day: 11.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,979,029 km

• M1: 180,415 km (0.119 R)
• M2: 642,373 km (0.096 R)
• M3: 1,160,580 km (0.118 R)
• M4: 1,739,823 km (0.086 R)
• M5: 2,249,503 km (0.113 R)
• M6: 2,782,221 km (0.07 R)
• M7: 3,718,105 km (0.081 R)
• M8: 4,632,597 km (0.097 R)
• M9: 5,242,358 km (0.064 R)
• M10: 6,717,842 km (0.109 R)
• M11: 7,758,744 km (0.05 R)
• M12: 8,538,448 km (0.096 R)
• M13: 9,548,533 km (0.079 R)
• M14: 10,286,200 km (0.077 R)
• M15: 11,261,429 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.3

Radius: 8.1

Gravity: 14.93 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.44 AU - 2.18 AU

Year: 1624 Days

Day: 14.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,979,029 km

• M1: 100,679 km (0.117 R)
• M2: 531,970 km (0.029 R)
• M3: 1,019,360 km (0.12 R)
• M4: 1,934,151 km (0.116 R)
• M5: 2,307,846 km (0.113 R)
• M6: 2,643,694 km (0.054 R)
• M7: 3,655,125 km (0.079 R)
• M8: 4,151,640 km (0.103 R)
• M9: 4,755,417 km (0.09 R)
• M10: 5,056,408 km (0.036 R)
• M11: 5,393,302 km (0.1 R)
• M12: 6,262,915 km (0.12 R)
• M13: 8,746,688 km (0.067 R)
• M14: 11,059,172 km (0.094 R)
• M15: 11,436,159 km (0.119 R)
• M16: 12,176,070 km (0.095 R)
• M17: 12,578,039 km (0.037 R)
• M18: 14,319,658 km (0.042 R)
• M19: 14,995,242 km (0.083 R)
• M20: 15,317,775 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 12.1

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.89 AU - 2.81 AU

Year: 2402 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,979,029 km

• M1: 150,495 km (0.088 R)
• M2: 677,828 km (0.095 R)
• M3: 1,151,604 km (0.066 R)
• M4: 1,564,345 km (0.097 R)
• M5: 2,856,272 km (0.081 R)
• M6: 3,879,372 km (0.096 R)
• M7: 4,432,735 km (0.088 R)
• M8: 4,853,254 km (0.047 R)
• M9: 5,276,317 km (0.084 R)
• M10: 5,775,226 km (0.11 R)
• M11: 6,781,720 km (0.108 R)
• M12: 8,029,666 km (0.113 R)
• M13: 8,522,740 km (0.096 R)
• M14: 9,425,264 km (0.113 R)
• M15: 11,056,180 km (0.091 R)
• M16: 11,625,849 km (0.12 R)
• M17: 13,775,122 km (0.117 R)
• M18: 15,115,818 km (0.114 R)
• M19: 15,818,030 km (0.11 R)
• M20: 16,911,890 km (0.055 R)
• M21: 17,833,861 km (0.062 R)
• M22: 19,018,676 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418

Radius: 10.5

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.99 AU - 3.21 AU

Year: 2796 Days

Day: 5.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,979,029 km

• M1: 130,599 km (0.115 R)
• M2: 493,374 km (0.047 R)
• M3: 942,167 km (0.115 R)
• M4: 1,560,455 km (0.038 R)
• M5: 2,074,474 km (0.072 R)
• M6: 3,531,707 km (0.113 R)
• M7: 4,568,869 km (0.064 R)
• M8: 4,912,345 km (0.103 R)
• M9: 5,507,595 km (0.092 R)
• M10: 5,997,528 km (0.069 R)
• M11: 6,842,008 km (0.084 R)
• M12: 7,178,454 km (0.066 R)
• M13: 7,824,118 km (0.058 R)
• M14: 10,102,643 km (0.103 R)
• M15: 10,539,768 km (0.106 R)
• M16: 10,951,611 km (0.103 R)
• M17: 11,807,610 km (0.079 R)
• M18: 12,333,896 km (0.094 R)
• M19: 14,142,384 km (0.056 R)
• M20: 15,924,993 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.8

Radius: 13.5

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.6 AU - 3.4 AU

Year: 3465 Days

Day: 5.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,979,029 km

• M1: 167,849 km (0.093 R)
• M2: 678,426 km (0.109 R)
• M3: 1,100,143 km (0.078 R)
• M4: 1,584,092 km (0.096 R)
• M5: 2,593,279 km (0.039 R)
• M6: 3,250,163 km (0.046 R)
• M7: 4,252,768 km (0.064 R)
• M8: 5,990,946 km (0.111 R)
• M9: 7,891,587 km (0.102 R)
• M10: 9,127,564 km (0.114 R)
• M11: 10,286,350 km (0.089 R)
• M12: 11,497,644 km (0.104 R)
• M13: 12,432,780 km (0.085 R)
• M14: 13,466,052 km (0.102 R)
• M15: 14,555,873 km (0.072 R)
• M16: 15,331,987 km (0.072 R)
• M17: 20,198,705 km (0.068 R)
• M18: 23,188,867 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.5

Radius: 14

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.73 AU - 3.29 AU

Year: 3482 Days

Day: 7.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,979,029 km

• M1: 174,132 km (0.07 R)
• M2: 798,703 km (0.106 R)
• M3: 1,429,258 km (0.118 R)
• M4: 2,042,460 km (0.105 R)
• M5: 2,972,210 km (0.099 R)
• M6: 3,750,718 km (0.093 R)
• M7: 4,314,552 km (0.104 R)
• M8: 5,639,241 km (0.045 R)
• M9: 7,871,242 km (0.077 R)
• M10: 8,904,364 km (0.054 R)
• M11: 11,861,615 km (0.077 R)
• M12: 14,873,320 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.7

Radius: 13.2

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.56 AU - 5.78 AU

Year: 6730 Days

Day: 13.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,979,029 km

• M1: 164,857 km (0.115 R)
• M2: 608,714 km (0.113 R)
• M3: 1,181,374 km (0.12 R)
• M4: 1,659,340 km (0.117 R)
• M5: 2,281,068 km (0.099 R)
• M6: 2,890,380 km (0.119 R)
• M7: 3,476,505 km (0.091 R)
• M8: 4,099,730 km (0.075 R)
• M9: 4,819,595 km (0.053 R)
• M10: 6,042,557 km (0.101 R)
• M11: 8,538,298 km (0.055 R)
• M12: 9,714,287 km (0.104 R)
• M13: 11,036,134 km (0.08 R)
• M14: 17,539,004 km (0.098 R)
• M15: 18,498,824 km (0.087 R)
• M16: 19,612,730 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.6

Radius: 6.7

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.94 AU - 7.1 AU

Year: 9850 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,979,029 km

• M1: 84,822 km (0.106 R)
• M2: 341,382 km (0.077 R)
• M3: 685,607 km (0.047 R)
• M4: 1,004,849 km (0.039 R)
• M5: 1,237,623 km (0.095 R)
• M6: 1,457,083 km (0.08 R)
• M7: 2,467,916 km (0.073 R)
• M8: 3,398,116 km (0.045 R)
• M9: 3,739,199 km (0.103 R)
• M10: 4,280,593 km (0.105 R)
• M11: 5,580,001 km (0.091 R)
• M12: 5,862,142 km (0.095 R)
• M13: 7,493,058 km (0.101 R)
• M14: 7,914,625 km (0.095 R)
• M15: 9,144,619 km (0.06 R)
• M16: 14,747,358 km (0.074 R)
• M17: 16,028,065 km (0.08 R)
• M18: 17,983,758 km (0.05 R)
• M19: 18,255,877 km (0.036 R)
• M20: 19,230,507 km (0.063 R)
• M21: 22,050,128 km (0.109 R)
• M22: 23,154,758 km (0.119 R)
• M23: 26,338,650 km (0.034 R)
• M24: 27,222,624 km (0.041 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 332 - 16,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit