🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.2

Radius: 10.9

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.56 AU - 0.66 AU

Year: 329 Days

Day: 10.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 88,318,433 km

• M1: 135,536 km (0.062 R)
• M2: 478,564 km (0.098 R)
• M3: 1,247,945 km (0.058 R)
• M4: 1,940,135 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.8

Radius: 11.7

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.27 AU - 1.99 AU

Year: 1436 Days

Day: 12.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 88,318,433 km

• M1: 145,559 km (0.111 R)
• M2: 554,260 km (0.092 R)
• M3: 984,952 km (0.041 R)
• M4: 1,443,619 km (0.083 R)
• M5: 2,582,508 km (0.038 R)
• M6: 3,535,297 km (0.093 R)
• M7: 3,911,685 km (0.034 R)
• M8: 4,914,888 km (0.091 R)
• M9: 5,405,869 km (0.114 R)
• M10: 6,648,728 km (0.102 R)
• M11: 7,225,876 km (0.093 R)
• M12: 8,591,107 km (0.109 R)
• M13: 9,159,578 km (0.034 R)
• M14: 9,753,033 km (0.08 R)
• M15: 10,340,504 km (0.114 R)
• M16: 10,951,462 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.3

Radius: 13

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.54 AU - 1.96 AU

Year: 1598 Days

Day: 10 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,318,433 km

• M1: 161,715 km (0.091 R)
• M2: 596,148 km (0.032 R)
• M3: 1,270,684 km (0.093 R)
• M4: 1,729,501 km (0.048 R)
• M5: 2,865,248 km (0.09 R)
• M6: 3,329,151 km (0.096 R)
• M7: 4,584,876 km (0.077 R)
• M8: 7,096,474 km (0.084 R)
• M9: 8,156,076 km (0.056 R)
• M10: 11,856,678 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.3

Radius: 9.5

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.76 AU - 2.54 AU

Year: 2176 Days

Day: 13.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,318,433 km

• M1: 118,182 km (0.115 R)
• M2: 476,469 km (0.037 R)
• M3: 1,127,519 km (0.079 R)
• M4: 2,225,867 km (0.097 R)
• M5: 2,874,224 km (0.073 R)
• M6: 3,184,490 km (0.056 R)
• M7: 3,822,974 km (0.115 R)
• M8: 4,470,134 km (0.079 R)
• M9: 5,716,583 km (0.106 R)
• M10: 6,732,203 km (0.105 R)
• M11: 7,283,023 km (0.112 R)
• M12: 10,238,628 km (0.095 R)
• M13: 10,798,872 km (0.038 R)
• M14: 11,589,347 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.6

Radius: 9

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.91 AU - 2.45 AU

Year: 2222 Days

Day: 7.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 88,318,433 km

• M1: 113,545 km (0.083 R)
• M2: 518,357 km (0.068 R)
• M3: 880,683 km (0.065 R)
• M4: 1,180,178 km (0.107 R)
• M5: 1,586,785 km (0.053 R)
• M6: 2,713,556 km (0.089 R)
• M7: 3,003,925 km (0.098 R)
• M8: 3,299,082 km (0.097 R)
• M9: 5,057,455 km (0.047 R)
• M10: 5,968,357 km (0.106 R)
• M11: 6,412,363 km (0.11 R)
• M12: 8,351,900 km (0.087 R)
• M13: 9,034,814 km (0.106 R)
• M14: 10,689,217 km (0.097 R)
• M15: 11,682,547 km (0.113 R)
• M16: 15,076,324 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.9

Radius: 14.2

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.6 AU - 2.7 AU

Year: 2978 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 155.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 88,318,433 km

• M1: 176,675 km (0.05 R)
• M2: 745,446 km (0.08 R)
• M3: 1,390,961 km (0.101 R)
• M4: 1,940,284 km (0.049 R)
• M5: 2,428,422 km (0.099 R)
• M6: 3,602,317 km (0.11 R)
• M7: 4,371,549 km (0.112 R)
• M8: 4,959,169 km (0.119 R)
• M9: 6,956,451 km (0.041 R)
• M10: 7,792,703 km (0.107 R)
• M11: 8,352,947 km (0.107 R)
• M12: 8,904,813 km (0.095 R)
• M13: 10,005,255 km (0.096 R)
• M14: 13,523,498 km (0.107 R)
• M15: 14,383,237 km (0.118 R)
• M16: 16,053,946 km (0.041 R)
• M17: 16,854,893 km (0.092 R)
• M18: 17,626,220 km (0.097 R)
• M19: 18,536,373 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.8

Radius: 11

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.11 AU - 4.65 AU

Year: 5275 Days

Day: 11.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 88,318,433 km

• M1: 139,724 km (0.068 R)
• M2: 518,955 km (0.064 R)
• M3: 1,131,259 km (0.076 R)
• M4: 1,536,520 km (0.12 R)
• M5: 1,999,824 km (0.12 R)
• M6: 2,478,837 km (0.119 R)
• M7: 3,157,861 km (0.057 R)
• M8: 5,466,605 km (0.064 R)
• M9: 6,121,844 km (0.095 R)
• M10: 8,405,306 km (0.077 R)
• M11: 8,871,154 km (0.065 R)
• M12: 10,131,665 km (0.109 R)
• M13: 11,078,470 km (0.105 R)
• M14: 13,629,264 km (0.054 R)
• M15: 14,526,252 km (0.117 R)
• M16: 20,496,404 km (0.054 R)
• M17: 21,474,026 km (0.119 R)
• M18: 22,963,722 km (0.07 R)
• M19: 23,381,698 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976.3

Radius: 6.7

Gravity: 21.75 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 8.27 AU - 11.19 AU

Year: 20950 Days

Day: 19.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 88,318,433 km

• M1: 83,476 km (0.104 R)
• M2: 352,303 km (0.105 R)
• M3: 589,416 km (0.043 R)
• M4: 1,170,903 km (0.05 R)
• M5: 1,762,861 km (0.116 R)
• M6: 3,196,906 km (0.111 R)
• M7: 3,581,971 km (0.098 R)
• M8: 4,097,934 km (0.118 R)
• M9: 4,848,916 km (0.063 R)
• M10: 5,118,641 km (0.118 R)
• M11: 6,032,085 km (0.115 R)
• M12: 6,667,278 km (0.057 R)
• M13: 8,671,740 km (0.052 R)
• M14: 9,069,820 km (0.12 R)
• M15: 11,179,000 km (0.038 R)
• M16: 14,683,480 km (0.079 R)
• M17: 20,607,555 km (0.11 R)
• M18: 21,418,974 km (0.081 R)
• M19: 24,314,890 km (0.049 R)
• M20: 24,878,425 km (0.094 R)
• M21: 26,979,228 km (0.065 R)
• M22: 27,827,298 km (0.075 R)
• M23: 31,397,452 km (0.116 R)
• M24: 32,335,580 km (0.054 R)
• M25: 33,292,109 km (0.1 R)
• M26: 34,833,266 km (0.112 R)
• M27: 36,128,933 km (0.047 R)
• M28: 37,158,765 km (0.119 R)
• M29: 37,456,614 km (0.11 R)
• M30: 42,440,467 km (0.085 R)
• M31: 44,921,697 km (0.086 R)
• M32: 47,848,879 km (0.108 R)
• M33: 54,654,086 km (0.06 R)
• M34: 56,205,865 km (0.117 R)
• M35: 56,598,260 km (0.106 R)
• M36: 57,388,735 km (0.069 R)
• M37: 61,451,365 km (0.113 R)
• M38: 65,484,673 km (0.101 R)
• M39: 69,691,066 km (0.117 R)
• M40: 75,257,154 km (0.187 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 13,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit