🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.2

Radius: 8.8

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.67 AU - 0.95 AU

Year: 471 Days

Day: 12.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,191,903 km

• M1: 109,805 km (0.065 R)
• M2: 476,918 km (0.091 R)
• M3: 794,664 km (0.078 R)
• M4: 1,529,638 km (0.11 R)
• M5: 1,842,597 km (0.1 R)
• M6: 2,122,195 km (0.097 R)
• M7: 2,422,139 km (0.056 R)
• M8: 2,696,651 km (0.054 R)
• M9: 3,001,532 km (0.057 R)
• M10: 3,402,304 km (0.029 R)
• M11: 3,748,175 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.8

Radius: 9.2

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.76 AU - 0.9 AU

Year: 488 Days

Day: 12.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,191,903 km

• M1: 115,340 km (0.055 R)
• M2: 422,764 km (0.088 R)
• M3: 767,886 km (0.097 R)
• M4: 1,234,332 km (0.108 R)
• M5: 1,634,806 km (0.115 R)
• M6: 2,155,406 km (0.109 R)
• M7: 2,455,200 km (0.103 R)
• M8: 2,752,002 km (0.119 R)
• M9: 3,552,052 km (0.103 R)
• M10: 4,993,427 km (0.097 R)
• M11: 5,457,031 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.8

Radius: 12

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.7 AU - 1.06 AU

Year: 533 Days

Day: 12.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 49,191,903 km

• M1: 150,795 km (0.119 R)
• M2: 885,171 km (0.084 R)
• M3: 1,564,345 km (0.066 R)
• M4: 2,186,223 km (0.108 R)
• M5: 3,485,182 km (0.095 R)
• M6: 4,099,580 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.1

Radius: 14.5

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.87 AU - 1.11 AU

Year: 636 Days

Day: 14.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,191,903 km

• M1: 181,761 km (0.106 R)
• M2: 694,433 km (0.094 R)
• M3: 1,198,429 km (0.117 R)
• M4: 1,678,339 km (0.119 R)
• M5: 2,475,546 km (0.111 R)
• M6: 2,967,872 km (0.058 R)
• M7: 3,470,371 km (0.085 R)
• M8: 3,944,746 km (0.09 R)
• M9: 4,475,669 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.9

Radius: 8.4

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.43 AU - 2.39 AU

Year: 1704 Days

Day: 8.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,191,903 km

• M1: 104,569 km (0.104 R)
• M2: 457,620 km (0.079 R)
• M3: 880,832 km (0.096 R)
• M4: 1,838,408 km (0.105 R)
• M5: 2,505,166 km (0.088 R)
• M6: 3,416,516 km (0.12 R)
• M7: 3,888,348 km (0.114 R)
• M8: 4,184,552 km (0.103 R)
• M9: 5,332,267 km (0.081 R)
• M10: 6,434,803 km (0.114 R)
• M11: 6,900,800 km (0.114 R)
• M12: 7,180,698 km (0.064 R)
• M13: 8,122,416 km (0.083 R)
• M14: 8,843,927 km (0.055 R)
• M15: 9,174,688 km (0.108 R)
• M16: 11,725,930 km (0.096 R)
• M17: 12,533,908 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83

Radius: 12.3

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 4.85 AU - 5.71 AU

Year: 7834 Days

Day: 14.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,191,903 km

• M1: 1,094,009 km (0.074 R)
• M2: 1,710,352 km (0.11 R)
• M3: 2,998,091 km (0.044 R)
• M4: 4,116,634 km (0.092 R)
• M5: 5,154,694 km (0.113 R)
• M6: 5,877,700 km (0.095 R)
• M7: 6,638,854 km (0.098 R)
• M8: 9,977,879 km (0.118 R)
• M9: 12,179,062 km (0.104 R)
• M10: 15,984,532 km (0.08 R)
• M11: 17,195,078 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.8

Radius: 7.2

Gravity: 8.93 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.71 AU - 8.41 AU

Year: 13421 Days

Day: 23.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,191,903 km

• M1: 89,759 km (0.079 R)
• M2: 423,661 km (0.084 R)
• M3: 1,686,267 km (0.05 R)
• M4: 1,925,474 km (0.089 R)
• M5: 2,433,509 km (0.099 R)
• M6: 2,740,633 km (0.041 R)
• M7: 3,533,801 km (0.078 R)
• M8: 3,901,512 km (0.115 R)
• M9: 4,294,656 km (0.076 R)
• M10: 4,744,796 km (0.088 R)
• M11: 5,495,777 km (0.043 R)
• M12: 6,285,654 km (0.105 R)
• M13: 7,314,289 km (0.095 R)
• M14: 7,912,381 km (0.059 R)
• M15: 12,030,810 km (0.116 R)
• M16: 12,383,113 km (0.09 R)
• M17: 15,248,960 km (0.111 R)
• M18: 16,152,830 km (0.11 R)
• M19: 19,638,161 km (0.03 R)
• M20: 22,960,730 km (0.086 R)
• M21: 23,594,427 km (0.116 R)
• M22: 23,869,537 km (0.118 R)
• M23: 28,051,396 km (0.073 R)
• M24: 33,730,131 km (0.029 R)
• M25: 35,500,323 km (0.111 R)
• M26: 37,830,310 km (0.092 R)
• M27: 40,916,813 km (0.051 R)
• M28: 42,385,864 km (0.099 R)
• M29: 44,724,976 km (0.074 R)
• M30: 46,140,322 km (0.083 R)
• M31: 48,171,711 km (0.032 R)
• M32: 50,717,568 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 241.2

Radius: 5.9

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 8.53 AU - 9.53 AU

Year: 17521 Days

Day: 18 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 49,191,903 km

• M1: 73,901 km (0.066 R)
• M2: 379,380 km (0.055 R)
• M3: 1,040,154 km (0.099 R)
• M4: 1,522,607 km (0.05 R)
• M5: 1,744,012 km (0.087 R)
• M6: 2,308,295 km (0.089 R)
• M7: 3,635,079 km (0.045 R)
• M8: 4,286,129 km (0.052 R)
• M9: 4,948,548 km (0.116 R)
• M10: 7,059,823 km (0.106 R)
• M11: 8,379,874 km (0.114 R)
• M12: 9,362,583 km (0.088 R)
• M13: 10,212,598 km (0.106 R)
• M14: 10,629,976 km (0.052 R)
• M15: 11,666,839 km (0.063 R)
• M16: 12,829,214 km (0.108 R)
• M17: 13,192,438 km (0.06 R)
• M18: 14,066,837 km (0.057 R)
• M19: 15,654,520 km (0.051 R)
• M20: 17,802,446 km (0.043 R)
• M21: 18,406,821 km (0.114 R)
• M22: 20,383,607 km (0.11 R)
• M23: 20,712,424 km (0.096 R)
• M24: 30,344,881 km (0.089 R)
• M25: 30,773,778 km (0.104 R)
• M26: 32,529,758 km (0.054 R)
• M27: 41,000,737 km (0.038 R)
• M28: 45,459,352 km (0.08 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 10,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit