🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467

Radius: 11.7

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.5 AU - 0.78 AU

Year: 347 Days

Day: 9.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,321,033 km

• M1: 145,559 km (0.114 R)
• M2: 515,664 km (0.084 R)
• M3: 1,046,886 km (0.069 R)
• M4: 1,572,872 km (0.099 R)
• M5: 1,985,912 km (0.117 R)
• M6: 2,412,116 km (0.108 R)
• M7: 3,056,284 km (0.064 R)
• M8: 3,606,655 km (0.067 R)
• M9: 4,037,796 km (0.093 R)
• M10: 4,451,434 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.3

Radius: 10.4

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.52 AU - 0.78 AU

Year: 355 Days

Day: 7.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,321,033 km

• M1: 139,575 km (0.062 R)
• M2: 473,926 km (0.102 R)
• M3: 1,035,666 km (0.081 R)
• M4: 1,500,467 km (0.116 R)
• M5: 2,669,125 km (0.099 R)
• M6: 3,455,711 km (0.111 R)
• M7: 3,796,794 km (0.094 R)
• M8: 4,507,683 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.2

Radius: 11

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1 AU - 1.4 AU

Year: 892 Days

Day: 10.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,321,033 km

• M1: 137,929 km (0.084 R)
• M2: 550,969 km (0.034 R)
• M3: 1,554,322 km (0.1 R)
• M4: 2,224,371 km (0.049 R)
• M5: 2,607,491 km (0.063 R)
• M6: 3,461,545 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.5

Radius: 10.3

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.12 AU - 1.76 AU

Year: 1172 Days

Day: 13.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,321,033 km

• M1: 130,001 km (0.115 R)
• M2: 538,253 km (0.063 R)
• M3: 906,862 km (0.106 R)
• M4: 1,342,042 km (0.081 R)
• M5: 1,784,553 km (0.103 R)
• M6: 2,139,848 km (0.117 R)
• M7: 2,505,166 km (0.08 R)
• M8: 2,912,222 km (0.055 R)
• M9: 3,242,534 km (0.063 R)
• M10: 4,278,948 km (0.074 R)
• M11: 5,544,396 km (0.035 R)
• M12: 6,078,161 km (0.119 R)
• M13: 7,326,705 km (0.119 R)
• M14: 8,975,723 km (0.038 R)
• M15: 9,339,245 km (0.11 R)
• M16: 9,807,487 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500

Radius: 13.6

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.22 AU - 1.74 AU

Year: 1221 Days

Day: 11 Hours

Environment

Temp: -190 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,321,033 km

• M1: 169,195 km (0.12 R)
• M2: 640,728 km (0.057 R)
• M3: 1,102,836 km (0.111 R)
• M4: 1,880,146 km (0.119 R)
• M5: 2,660,598 km (0.111 R)
• M6: 3,663,353 km (0.025 R)
• M7: 4,169,442 km (0.119 R)
• M8: 5,704,167 km (0.053 R)
• M9: 6,611,777 km (0.112 R)
• M10: 7,220,640 km (0.11 R)
• M11: 9,160,326 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.1

Radius: 13.1

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.65 AU - 4.17 AU

Year: 5244 Days

Day: 14.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,321,033 km

• M1: 163,062 km (0.048 R)
• M2: 872,305 km (0.06 R)
• M3: 1,427,912 km (0.042 R)
• M4: 1,979,928 km (0.108 R)
• M5: 3,465,584 km (0.105 R)
• M6: 4,871,355 km (0.044 R)
• M7: 5,314,016 km (0.119 R)
• M8: 6,628,233 km (0.1 R)
• M9: 7,683,047 km (0.114 R)
• M10: 8,319,736 km (0.105 R)
• M11: 10,085,739 km (0.115 R)
• M12: 11,351,935 km (0.113 R)
• M13: 12,859,583 km (0.076 R)
• M14: 14,497,081 km (0.077 R)
• M15: 16,323,671 km (0.119 R)
• M16: 17,377,438 km (0.108 R)
• M17: 21,067,868 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.1

Radius: 4

Gravity: 58.69 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.06 AU - 7.24 AU

Year: 11631 Days

Day: 21.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,321,033 km

• M1: 89,908 km (0.105 R)
• M2: 387,159 km (0.115 R)
• M3: 541,993 km (0.105 R)
• M4: 873,352 km (0.109 R)
• M5: 1,273,527 km (0.036 R)
• M6: 2,032,586 km (0.051 R)
• M7: 2,403,589 km (0.041 R)
• M8: 2,727,020 km (0.057 R)
• M9: 4,535,059 km (0.048 R)
• M10: 5,165,465 km (0.069 R)
• M11: 5,777,171 km (0.117 R)
• M12: 6,395,907 km (0.062 R)
• M13: 6,804,310 km (0.07 R)
• M14: 7,718,353 km (0.112 R)
• M15: 9,110,959 km (0.068 R)
• M16: 11,890,637 km (0.11 R)
• M17: 14,415,550 km (0.105 R)
• M18: 23,701,239 km (0.093 R)
• M19: 25,172,834 km (0.026 R)
• M20: 30,974,838 km (0.05 R)
• M21: 33,816,748 km (0.1 R)
• M22: 36,698,751 km (0.042 R)
• M23: 42,802,943 km (0.112 R)
• M24: 46,771,774 km (0.108 R)
• M25: 51,300,401 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.8

Radius: 5.7

Gravity: 15.14 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.73 AU - 8.05 AU

Year: 15032 Days

Day: 15 Hours

Environment

Temp: -230 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,321,033 km

• M1: 72,256 km (0.059 R)
• M2: 462,856 km (0.033 R)
• M3: 1,070,971 km (0.056 R)
• M4: 1,828,984 km (0.113 R)
• M5: 2,321,011 km (0.087 R)
• M6: 3,459,152 km (0.118 R)
• M7: 3,891,190 km (0.081 R)
• M8: 6,023,558 km (0.079 R)
• M9: 8,588,264 km (0.102 R)
• M10: 10,216,338 km (0.054 R)
• M11: 10,542,910 km (0.119 R)
• M12: 12,039,637 km (0.102 R)
• M13: 13,606,974 km (0.082 R)
• M14: 13,936,089 km (0.041 R)
• M15: 14,816,472 km (0.085 R)
• M16: 15,950,275 km (0.035 R)
• M17: 16,762,591 km (0.029 R)
• M18: 18,630,021 km (0.086 R)
• M19: 19,865,101 km (0.038 R)
• M20: 24,472,117 km (0.066 R)
• M21: 25,451,983 km (0.104 R)
• M22: 30,409,507 km (0.099 R)
• M23: 34,372,205 km (0.111 R)
• M24: 45,170,329 km (0.043 R)
• M25: 45,462,195 km (0.074 R)
• M26: 48,450,861 km (0.057 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 219 - 13,614 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit