🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736

Radius: 13.1

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.49 AU - 0.55 AU

Year: 254 Days

Day: 10.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,325,695 km

• M1: 162,912 km (0.102 R)
• M2: 658,081 km (0.08 R)
• M3: 1,140,684 km (0.088 R)
• M4: 1,649,017 km (0.117 R)
• M5: 2,100,504 km (0.117 R)
• M6: 2,705,926 km (0.085 R)
• M7: 3,468,277 km (0.04 R)
• M8: 3,877,726 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.6

Radius: 8.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.85 AU - 1.37 AU

Year: 793 Days

Day: 5.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,325,695 km

• M1: 103,223 km (0.114 R)
• M2: 396,285 km (0.115 R)
• M3: 683,662 km (0.09 R)
• M4: 967,300 km (0.104 R)
• M5: 1,509,891 km (0.1 R)
• M6: 2,102,748 km (0.098 R)
• M7: 2,427,824 km (0.108 R)
• M8: 2,819,920 km (0.094 R)
• M9: 3,265,871 km (0.095 R)
• M10: 3,704,193 km (0.085 R)
• M11: 4,065,472 km (0.109 R)
• M12: 4,419,719 km (0.08 R)
• M13: 4,956,626 km (0.039 R)
• M14: 5,589,724 km (0.065 R)
• M15: 6,160,740 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.1

Radius: 12.1

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.32 AU - 1.56 AU

Year: 1172 Days

Day: 13.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,325,695 km

• M1: 151,094 km (0.102 R)
• M2: 665,411 km (0.106 R)
• M3: 1,152,951 km (0.116 R)
• M4: 1,681,031 km (0.096 R)
• M5: 2,680,195 km (0.071 R)
• M6: 3,235,353 km (0.072 R)
• M7: 4,203,251 km (0.089 R)
• M8: 5,296,812 km (0.09 R)
• M9: 5,694,144 km (0.104 R)
• M10: 6,154,008 km (0.081 R)
• M11: 6,752,549 km (0.103 R)
• M12: 7,316,832 km (0.033 R)
• M13: 8,143,809 km (0.064 R)
• M14: 9,032,271 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628

Radius: 14.6

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.5 AU - 1.94 AU

Year: 1530 Days

Day: 14.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,325,695 km

• M1: 182,509 km (0.085 R)
• M2: 702,512 km (0.111 R)
• M3: 1,468,752 km (0.05 R)
• M4: 1,945,072 km (0.103 R)
• M5: 2,464,326 km (0.041 R)
• M6: 3,005,421 km (0.03 R)
• M7: 6,063,650 km (0.072 R)
• M8: 6,733,550 km (0.116 R)
• M9: 7,694,118 km (0.044 R)
• M10: 8,744,295 km (0.087 R)
• M11: 9,664,172 km (0.066 R)
• M12: 10,147,972 km (0.072 R)
• M13: 12,359,327 km (0.089 R)
• M14: 13,163,266 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.8

Radius: 9.1

Gravity: 11.52 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.41 AU - 2.07 AU

Year: 1557 Days

Day: 12.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,325,695 km

• M1: 113,096 km (0.116 R)
• M2: 426,055 km (0.116 R)
• M3: 854,802 km (0.056 R)
• M4: 1,268,740 km (0.104 R)
• M5: 1,900,043 km (0.12 R)
• M6: 2,312,783 km (0.061 R)
• M7: 2,657,457 km (0.077 R)
• M8: 3,777,795 km (0.092 R)
• M9: 4,513,667 km (0.057 R)
• M10: 5,033,819 km (0.082 R)
• M11: 5,996,930 km (0.079 R)
• M12: 6,471,155 km (0.1 R)
• M13: 7,024,069 km (0.094 R)
• M14: 7,522,828 km (0.087 R)
• M15: 8,684,456 km (0.116 R)
• M16: 9,489,591 km (0.066 R)
• M17: 9,893,206 km (0.033 R)
• M18: 10,627,283 km (0.098 R)
• M19: 12,481,100 km (0.074 R)
• M20: 13,007,086 km (0.111 R)
• M21: 13,379,734 km (0.08 R)
• M22: 14,016,722 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.8

Radius: 10.9

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 4.85 AU - 4.89 AU

Year: 7289 Days

Day: 14.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,325,695 km

• M1: 135,536 km (0.098 R)
• M2: 903,122 km (0.092 R)
• M3: 1,269,936 km (0.084 R)
• M4: 1,929,364 km (0.092 R)
• M5: 3,976,760 km (0.091 R)
• M6: 4,673,737 km (0.071 R)
• M7: 5,705,663 km (0.105 R)
• M8: 6,957,348 km (0.05 R)
• M9: 7,412,724 km (0.12 R)
• M10: 8,468,287 km (0.107 R)
• M11: 9,032,271 km (0.07 R)
• M12: 11,700,349 km (0.086 R)
• M13: 14,424,825 km (0.118 R)
• M14: 16,393,832 km (0.051 R)
• M15: 16,862,074 km (0.097 R)
• M16: 19,562,016 km (0.059 R)
• M17: 22,784,952 km (0.075 R)
• M18: 27,174,453 km (0.063 R)
• M19: 37,238,800 km (0.099 R)
• M20: 37,932,335 km (0.075 R)
• M21: 38,516,814 km (0.116 R)
• M22: 40,427,478 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.3

Radius: 5.6

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 7.61 AU - 8.63 AU

Year: 15694 Days

Day: 21.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 154.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,325,695 km

• M1: 100,679 km (0.08 R)
• M2: 343,327 km (0.087 R)
• M3: 524,939 km (0.047 R)
• M4: 1,244,205 km (0.063 R)
• M5: 1,953,599 km (0.108 R)
• M6: 5,595,409 km (0.059 R)
• M7: 5,830,278 km (0.093 R)
• M8: 7,027,510 km (0.091 R)
• M9: 7,420,503 km (0.1 R)
• M10: 7,786,569 km (0.101 R)
• M11: 20,762,389 km (0.076 R)
• M12: 26,394,300 km (0.119 R)
• M13: 35,073,819 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 243.4

Radius: 5.8

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 8.83 AU - 9.35 AU

Year: 18588 Days

Day: 18.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,325,695 km

• M1: 72,405 km (0.086 R)
• M2: 333,005 km (0.034 R)
• M3: 663,766 km (0.1 R)
• M4: 1,864,289 km (0.112 R)
• M5: 2,544,061 km (0.063 R)
• M6: 2,774,891 km (0.069 R)
• M7: 6,633,768 km (0.083 R)
• M8: 8,881,626 km (0.081 R)
• M9: 10,280,665 km (0.118 R)
• M10: 11,142,947 km (0.093 R)
• M11: 14,941,686 km (0.065 R)
• M12: 18,494,037 km (0.084 R)
• M13: 23,198,591 km (0.106 R)
• M14: 24,676,318 km (0.069 R)
• M15: 35,478,481 km (0.104 R)
• M16: 36,326,253 km (0.06 R)
• M17: 36,816,634 km (0.085 R)
• M18: 42,914,842 km (0.093 R)
• M19: 46,705,353 km (0.111 R)
• M20: 47,285,194 km (0.078 R)
• M21: 51,172,046 km (0.084 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 14,203 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit