🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.6

Radius: 13.2

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.29 AU - 1.69 AU

Year: 1174 Days

Day: 14.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,899,866 km

• M1: 164,258 km (0.083 R)
• M2: 655,089 km (0.076 R)
• M3: 1,114,355 km (0.115 R)
• M4: 1,627,326 km (0.102 R)
• M5: 2,274,785 km (0.053 R)
• M6: 3,046,860 km (0.111 R)
• M7: 3,494,905 km (0.11 R)
• M8: 3,970,028 km (0.119 R)
• M9: 5,424,868 km (0.075 R)
• M10: 5,996,780 km (0.104 R)
• M11: 6,415,953 km (0.066 R)
• M12: 7,030,950 km (0.108 R)
• M13: 8,040,736 km (0.054 R)
• M14: 8,668,299 km (0.092 R)
• M15: 10,919,298 km (0.091 R)
• M16: 11,689,877 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.8

Radius: 13.5

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.19 AU - 1.85 AU

Year: 1210 Days

Day: 14.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 134 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,899,866 km

• M1: 169,046 km (0.084 R)
• M2: 977,472 km (0.112 R)
• M3: 1,527,993 km (0.074 R)
• M4: 1,958,835 km (0.067 R)
• M5: 2,587,894 km (0.054 R)
• M6: 3,293,248 km (0.108 R)
• M7: 4,373,494 km (0.042 R)
• M8: 5,033,520 km (0.114 R)
• M9: 5,677,538 km (0.113 R)
• M10: 6,442,432 km (0.118 R)
• M11: 7,592,690 km (0.095 R)
• M12: 8,282,785 km (0.09 R)
• M13: 8,738,460 km (0.05 R)
• M14: 9,239,164 km (0.101 R)
• M15: 9,759,167 km (0.111 R)
• M16: 10,268,099 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.5

Radius: 9.1

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.35 AU - 2.83 AU

Year: 2691 Days

Day: 5.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,899,866 km

• M1: 113,096 km (0.11 R)
• M2: 397,332 km (0.112 R)
• M3: 696,528 km (0.103 R)
• M4: 1,702,424 km (0.053 R)
• M5: 2,088,237 km (0.109 R)
• M6: 2,443,980 km (0.082 R)
• M7: 2,729,413 km (0.113 R)
• M8: 3,261,234 km (0.082 R)
• M9: 3,552,201 km (0.037 R)
• M10: 7,074,334 km (0.075 R)
• M11: 8,012,462 km (0.071 R)
• M12: 9,425,563 km (0.111 R)
• M13: 10,134,059 km (0.036 R)
• M14: 10,638,802 km (0.095 R)
• M15: 14,218,679 km (0.108 R)
• M16: 16,971,280 km (0.11 R)
• M17: 19,580,865 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.2

Radius: 12

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.75 AU - 2.91 AU

Year: 3074 Days

Day: 14.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,899,866 km

• M1: 149,299 km (0.116 R)
• M2: 878,140 km (0.045 R)
• M3: 2,004,163 km (0.074 R)
• M4: 2,464,924 km (0.116 R)
• M5: 2,979,990 km (0.07 R)
• M6: 3,368,645 km (0.052 R)
• M7: 3,907,347 km (0.064 R)
• M8: 4,655,486 km (0.103 R)
• M9: 5,111,161 km (0.08 R)
• M10: 6,032,983 km (0.026 R)
• M11: 6,575,874 km (0.084 R)
• M12: 8,012,462 km (0.041 R)
• M13: 9,010,878 km (0.096 R)
• M14: 11,952,571 km (0.117 R)
• M15: 14,458,185 km (0.044 R)
• M16: 15,184,782 km (0.079 R)
• M17: 16,922,062 km (0.104 R)
• M18: 17,295,459 km (0.117 R)
• M19: 19,246,364 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.2

Radius: 13.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.3 AU - 4.36 AU

Year: 5818 Days

Day: 12.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 20,899,866 km

• M1: 168,148 km (0.106 R)
• M2: 626,665 km (0.045 R)
• M3: 1,068,129 km (0.042 R)
• M4: 1,491,790 km (0.069 R)
• M5: 1,991,297 km (0.093 R)
• M6: 3,060,324 km (0.095 R)
• M7: 4,096,438 km (0.061 R)
• M8: 5,433,993 km (0.085 R)
• M9: 6,396,207 km (0.095 R)
• M10: 7,670,182 km (0.055 R)
• M11: 8,843,478 km (0.077 R)
• M12: 12,135,230 km (0.096 R)
• M13: 12,698,316 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 104.9

Radius: 6

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.46 AU - 6.48 AU

Year: 10626 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,899,866 km

• M1: 76,145 km (0.082 R)
• M2: 307,424 km (0.06 R)
• M3: 1,084,734 km (0.094 R)
• M4: 1,327,382 km (0.048 R)
• M5: 2,236,488 km (0.089 R)
• M6: 2,910,576 km (0.119 R)
• M7: 4,456,969 km (0.103 R)
• M8: 5,683,971 km (0.102 R)
• M9: 8,784,686 km (0.107 R)
• M10: 10,605,143 km (0.081 R)
• M11: 11,949,878 km (0.098 R)
• M12: 12,956,223 km (0.09 R)
• M13: 13,556,110 km (0.073 R)
• M14: 16,894,536 km (0.103 R)
• M15: 17,429,349 km (0.116 R)
• M16: 23,414,460 km (0.085 R)
• M17: 23,856,223 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.9

Radius: 4.3

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.63 AU - 7.71 AU

Year: 11123 Days

Day: 20 Hours

Environment

Temp: -233 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,899,866 km

• M1: 53,706 km (0.105 R)
• M2: 203,304 km (0.119 R)
• M3: 341,682 km (0.092 R)
• M4: 511,026 km (0.112 R)
• M5: 736,620 km (0.105 R)
• M6: 1,152,801 km (0.063 R)
• M7: 1,927,868 km (0.104 R)
• M8: 2,204,025 km (0.098 R)
• M9: 3,391,085 km (0.087 R)
• M10: 3,734,112 km (0.033 R)
• M11: 5,315,811 km (0.093 R)
• M12: 6,637,209 km (0.107 R)
• M13: 7,081,963 km (0.083 R)
• M14: 8,708,092 km (0.068 R)
• M15: 9,719,673 km (0.101 R)
• M16: 10,686,823 km (0.12 R)
• M17: 10,887,733 km (0.115 R)
• M18: 14,163,029 km (0.098 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 14,199 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit