🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 10.6

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.42 AU - 0.7 AU

Year: 289 Days

Day: 8.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 125 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,636,199 km

• M1: 131,796 km (0.053 R)
• M2: 908,209 km (0.099 R)
• M3: 1,259,016 km (0.115 R)
• M4: 2,043,507 km (0.054 R)
• M5: 2,541,219 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.2

Radius: 9.9

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.57 AU - 0.75 AU

Year: 370 Days

Day: 15 Hours

Environment

Temp: -163 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,636,199 km

• M1: 123,269 km (0.11 R)
• M2: 456,872 km (0.081 R)
• M3: 906,114 km (0.104 R)
• M4: 1,231,639 km (0.06 R)
• M5: 1,720,076 km (0.099 R)
• M6: 2,214,946 km (0.062 R)
• M7: 2,543,762 km (0.119 R)
• M8: 3,138,713 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.9

Radius: 8.5

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.57 AU - 0.79 AU

Year: 387 Days

Day: 13.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,636,199 km

• M1: 105,766 km (0.066 R)
• M2: 462,407 km (0.085 R)
• M3: 733,030 km (0.055 R)
• M4: 1,032,525 km (0.112 R)
• M5: 1,459,926 km (0.097 R)
• M6: 2,307,996 km (0.048 R)
• M7: 3,379,865 km (0.118 R)
• M8: 3,772,858 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.1

Radius: 8.3

Gravity: 14.26 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.71 AU - 0.97 AU

Year: 531 Days

Day: 11 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,636,199 km

• M1: 103,372 km (0.079 R)
• M2: 361,877 km (0.094 R)
• M3: 1,120,638 km (0.068 R)
• M4: 1,469,799 km (0.095 R)
• M5: 1,925,624 km (0.055 R)
• M6: 2,250,251 km (0.093 R)
• M7: 2,536,282 km (0.119 R)
• M8: 2,834,880 km (0.104 R)
• M9: 3,206,930 km (0.086 R)
• M10: 3,693,422 km (0.105 R)
• M11: 4,034,655 km (0.045 R)
• M12: 4,335,047 km (0.069 R)
• M13: 4,699,019 km (0.108 R)
• M14: 5,221,564 km (0.077 R)
• M15: 5,542,601 km (0.109 R)
• M16: 5,914,501 km (0.106 R)
• M17: 6,524,113 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.5

Radius: 12.5

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.19 AU - 3.43 AU

Year: 3251 Days

Day: 6.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,636,199 km

• M1: 194,328 km (0.027 R)
• M2: 882,927 km (0.088 R)
• M3: 1,887,925 km (0.11 R)
• M4: 3,705,390 km (0.059 R)
• M5: 4,269,374 km (0.093 R)
• M6: 4,723,553 km (0.063 R)
• M7: 5,491,588 km (0.086 R)
• M8: 8,441,209 km (0.096 R)
• M9: 10,927,825 km (0.066 R)
• M10: 11,870,292 km (0.082 R)
• M11: 18,638,548 km (0.026 R)
• M12: 20,871,596 km (0.105 R)
• M13: 21,919,230 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392.3

Radius: 6.2

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.3 AU - 8.32 AU

Year: 12267 Days

Day: 16.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,636,199 km

• M1: 690,993 km (0.028 R)
• M2: 1,258,118 km (0.117 R)
• M3: 3,308,357 km (0.098 R)
• M4: 5,304,292 km (0.118 R)
• M5: 5,735,134 km (0.08 R)
• M6: 8,599,334 km (0.068 R)
• M7: 9,147,012 km (0.108 R)
• M8: 11,247,965 km (0.032 R)
• M9: 16,169,435 km (0.111 R)
• M10: 16,862,074 km (0.072 R)
• M11: 21,686,755 km (0.115 R)
• M12: 32,396,017 km (0.115 R)
• M13: 33,273,409 km (0.091 R)
• M14: 37,298,938 km (0.104 R)
• M15: 37,538,294 km (0.1 R)
• M16: 37,899,274 km (0.108 R)
• M17: 39,242,663 km (0.119 R)
• M18: 39,490,248 km (0.058 R)
• M19: 42,804,888 km (0.061 R)
• M20: 43,462,969 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.6

Radius: 3.1

Gravity: 15.36 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 6.86 AU - 6.92 AU

Year: 12484 Days

Day: 20.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 29,636,199 km

• M1: 39,494 km (0.116 R)
• M2: 277,803 km (0.102 R)
• M3: 464,950 km (0.111 R)
• M4: 693,536 km (0.103 R)
• M5: 1,088,624 km (0.106 R)
• M6: 2,058,467 km (0.117 R)
• M7: 2,399,849 km (0.037 R)
• M8: 3,835,091 km (0.096 R)
• M9: 4,427,050 km (0.115 R)
• M10: 4,909,204 km (0.102 R)
• M11: 5,278,561 km (0.107 R)
• M12: 6,632,721 km (0.092 R)
• M13: 6,769,453 km (0.093 R)
• M14: 8,202,152 km (0.065 R)
• M15: 12,772,517 km (0.08 R)
• M16: 13,360,287 km (0.11 R)
• M17: 23,498,385 km (0.108 R)
• M18: 25,615,195 km (0.118 R)
• M19: 28,390,385 km (0.041 R)
• M20: 28,660,409 km (0.064 R)
• M21: 29,114,139 km (0.072 R)
• M22: 31,455,495 km (0.056 R)
• M23: 32,426,086 km (0.092 R)
• M24: 33,017,896 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.7

Radius: 5.5

Gravity: 19.46 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7.21 AU - 10.65 AU

Year: 18420 Days

Day: 24.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,636,199 km

• M1: 118,332 km (0.101 R)
• M2: 447,746 km (0.065 R)
• M3: 757,863 km (0.075 R)
• M4: 956,230 km (0.086 R)
• M5: 1,897,051 km (0.117 R)
• M6: 2,166,177 km (0.113 R)
• M7: 2,781,024 km (0.069 R)
• M8: 3,972,422 km (0.076 R)
• M9: 4,512,769 km (0.107 R)
• M10: 8,722,753 km (0.105 R)
• M11: 10,368,928 km (0.074 R)
• M12: 17,011,971 km (0.063 R)
• M13: 17,255,965 km (0.093 R)
• M14: 21,014,611 km (0.089 R)
• M15: 36,694,862 km (0.089 R)
• M16: 38,762,304 km (0.108 R)
• M17: 41,785,528 km (0.116 R)
• M18: 46,847,770 km (0.106 R)
• M19: 48,458,789 km (0.07 R)
• M20: 53,862,115 km (0.12 R)
• M21: 67,052,907 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34.6

Radius: 6.3

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 9.15 AU - 10.73 AU

Year: 21632 Days

Day: 22.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 109.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,636,199 km

• M1: 78,539 km (0.082 R)
• M2: 414,984 km (0.114 R)
• M3: 1,587,682 km (0.103 R)
• M4: 2,331,333 km (0.067 R)
• M5: 2,807,952 km (0.062 R)
• M6: 5,935,445 km (0.085 R)
• M7: 19,475,249 km (0.105 R)
• M8: 26,557,512 km (0.111 R)
• M9: 27,306,099 km (0.114 R)
• M10: 27,558,770 km (0.078 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 19,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit