🌌 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: 665.9

Radius: 11.7

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.7 AU - 0.86 AU

Year: 476 Days

Day: 14.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,235,796 km

• M1: 145,559 km (0.101 R)
• M2: 586,872 km (0.086 R)
• M3: 962,513 km (0.037 R)
• M4: 1,370,316 km (0.042 R)
• M5: 1,992,644 km (0.091 R)
• M6: 2,426,777 km (0.032 R)
• M7: 3,011,854 km (0.043 R)
• M8: 3,740,246 km (0.111 R)
• M9: 4,612,402 km (0.105 R)
• M10: 5,120,735 km (0.117 R)
• M11: 5,752,337 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.3

Radius: 11.5

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.87 AU - 1.45 AU

Year: 862 Days

Day: 7 Hours

Environment

Temp: -180 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,235,796 km

• M1: 143,016 km (0.112 R)
• M2: 608,564 km (0.091 R)
• M3: 1,007,242 km (0.095 R)
• M4: 1,427,912 km (0.082 R)
• M5: 2,088,087 km (0.093 R)
• M6: 3,053,592 km (0.101 R)
• M7: 3,581,523 km (0.046 R)
• M8: 4,838,893 km (0.107 R)
• M9: 5,847,182 km (0.034 R)
• M10: 6,495,390 km (0.096 R)
• M11: 7,034,690 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.6

Radius: 11.3

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.83 AU - 2.83 AU

Year: 3286 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 114.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,235,796 km

• M1: 140,772 km (0.048 R)
• M2: 635,791 km (0.117 R)
• M3: 988,543 km (0.055 R)
• M4: 1,356,553 km (0.114 R)
• M5: 1,955,693 km (0.067 R)
• M6: 3,393,179 km (0.069 R)
• M7: 4,123,965 km (0.104 R)
• M8: 5,492,635 km (0.112 R)
• M9: 6,151,764 km (0.083 R)
• M10: 6,589,936 km (0.093 R)
• M11: 7,049,052 km (0.09 R)
• M12: 7,595,084 km (0.063 R)
• M13: 7,963,244 km (0.117 R)
• M14: 10,552,634 km (0.066 R)
• M15: 14,103,788 km (0.052 R)
• M16: 15,286,808 km (0.076 R)
• M17: 15,875,476 km (0.068 R)
• M18: 16,646,503 km (0.108 R)
• M19: 17,212,282 km (0.087 R)
• M20: 20,492,664 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.8

Radius: 12

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.32 AU - 4.8 AU

Year: 5647 Days

Day: 6.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,235,796 km

• M1: 155,133 km (0.102 R)
• M2: 576,251 km (0.11 R)
• M3: 1,331,720 km (0.086 R)
• M4: 1,772,884 km (0.08 R)
• M5: 2,712,209 km (0.085 R)
• M6: 4,749,732 km (0.095 R)
• M7: 6,648,129 km (0.101 R)
• M8: 7,467,028 km (0.093 R)
• M9: 11,577,379 km (0.082 R)
• M10: 15,072,584 km (0.094 R)
• M11: 18,183,920 km (0.098 R)
• M12: 23,497,487 km (0.107 R)
• M13: 26,768,594 km (0.089 R)
• M14: 30,618,196 km (0.051 R)
• M15: 31,979,387 km (0.107 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.5

Radius: 4.5

Gravity: 26.35 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.69 AU - 6.65 AU

Year: 9319 Days

Day: 16.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,235,796 km

• M1: 55,950 km (0.119 R)
• M2: 292,913 km (0.057 R)
• M3: 777,610 km (0.111 R)
• M4: 968,497 km (0.069 R)
• M5: 1,781,411 km (0.084 R)
• M6: 6,895,714 km (0.098 R)
• M7: 7,756,201 km (0.075 R)
• M8: 9,223,457 km (0.115 R)
• M9: 12,807,672 km (0.1 R)
• M10: 14,345,837 km (0.107 R)
• M11: 15,871,137 km (0.048 R)
• M12: 16,201,898 km (0.054 R)
• M13: 18,721,276 km (0.09 R)
• M14: 19,389,530 km (0.062 R)
• M15: 26,227,798 km (0.052 R)
• M16: 28,110,038 km (0.1 R)
• M17: 34,073,907 km (0.098 R)
• M18: 35,180,782 km (0.092 R)
• M19: 37,816,846 km (0.115 R)
• M20: 38,052,163 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.8

Radius: 5.5

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.9 AU - 6.84 AU

Year: 11097 Days

Day: 15.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,235,796 km

• M1: 68,516 km (0.08 R)
• M2: 253,718 km (0.103 R)
• M3: 580,889 km (0.12 R)
• M4: 752,776 km (0.108 R)
• M5: 1,193,193 km (0.081 R)
• M6: 7,267,614 km (0.095 R)
• M7: 7,824,866 km (0.112 R)
• M8: 8,055,696 km (0.119 R)
• M9: 9,624,229 km (0.117 R)
• M10: 10,387,777 km (0.116 R)
• M11: 11,046,157 km (0.062 R)
• M12: 11,434,812 km (0.116 R)
• M13: 11,782,179 km (0.071 R)
• M14: 11,983,837 km (0.104 R)
• M15: 14,587,139 km (0.119 R)
• M16: 21,025,532 km (0.116 R)
• M17: 21,773,072 km (0.044 R)
• M18: 23,320,962 km (0.116 R)
• M19: 30,721,419 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112

Radius: 7.9

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 8.07 AU - 10.13 AU

Year: 18948 Days

Day: 23 Hours

Environment

Temp: -242 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,235,796 km

• M1: 98,286 km (0.044 R)
• M2: 418,575 km (0.09 R)
• M3: 777,909 km (0.105 R)
• M4: 1,267,992 km (0.11 R)
• M5: 1,563,298 km (0.061 R)
• M6: 3,722,294 km (0.109 R)
• M7: 4,895,590 km (0.074 R)
• M8: 7,242,931 km (0.063 R)
• M9: 11,925,493 km (0.097 R)
• M10: 13,655,144 km (0.096 R)
• M11: 14,367,380 km (0.075 R)
• M12: 16,454,120 km (0.119 R)
• M13: 20,983,944 km (0.108 R)
• M14: 21,772,025 km (0.096 R)
• M15: 22,254,179 km (0.114 R)
• M16: 25,298,346 km (0.119 R)
• M17: 25,563,883 km (0.091 R)
• M18: 32,824,466 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 217.3

Radius: 5.3

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.71 AU - 9.55 AU

Year: 19042 Days

Day: 15.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,235,796 km

• M1: 66,122 km (0.049 R)
• M2: 388,655 km (0.104 R)
• M3: 937,380 km (0.119 R)
• M4: 1,393,205 km (0.031 R)
• M5: 1,663,678 km (0.101 R)
• M6: 2,928,229 km (0.08 R)
• M7: 3,889,096 km (0.11 R)
• M8: 4,759,456 km (0.119 R)
• M9: 7,660,608 km (0.115 R)
• M10: 8,051,956 km (0.119 R)
• M11: 11,063,062 km (0.088 R)
• M12: 13,524,844 km (0.086 R)
• M13: 15,767,316 km (0.087 R)
• M14: 20,722,147 km (0.079 R)
• M15: 29,161,711 km (0.114 R)
• M16: 29,582,231 km (0.106 R)
• M17: 49,028,757 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.7

Radius: 3.4

Gravity: 56.12 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 8.74 AU - 11.52 AU

Year: 22255 Days

Day: 19.7 Hours

Environment

Temp: -244 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,235,796 km

• M1: 42,336 km (0.089 R)
• M2: 409,150 km (0.109 R)
• M3: 533,765 km (0.066 R)
• M4: 1,674,000 km (0.05 R)
• M5: 2,059,514 km (0.076 R)
• M6: 3,194,214 km (0.102 R)
• M7: 6,068,886 km (0.065 R)
• M8: 7,848,054 km (0.04 R)
• M9: 9,304,688 km (0.058 R)
• M10: 12,599,881 km (0.077 R)
• M11: 15,770,009 km (0.093 R)
• M12: 23,307,797 km (0.1 R)
• M13: 24,269,711 km (0.118 R)
• M14: 37,226,832 km (0.03 R)
• M15: 38,686,757 km (0.071 R)
• M16: 41,410,037 km (0.067 R)
• M17: 50,341,479 km (0.106 R)
• M18: 54,134,832 km (0.09 R)
• M19: 57,534,443 km (0.046 R)
• M20: 66,437,312 km (0.064 R)
• M21: 67,075,796 km (0.12 R)
• M22: 70,329,250 km (0.111 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 19,844 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit