🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.66 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.5

Radius: 14.3

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.16 AU - 1.46 AU

Year: 1017 Days

Day: 6.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,917,009 km

• M1: 177,872 km (0.063 R)
• M2: 632,500 km (0.061 R)
• M3: 1,081,293 km (0.059 R)
• M4: 1,530,237 km (0.044 R)
• M5: 2,947,228 km (0.038 R)
• M6: 3,599,175 km (0.119 R)
• M7: 4,219,558 km (0.118 R)
• M8: 5,035,464 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.5

Radius: 13.5

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.08 AU - 1.6 AU

Year: 1052 Days

Day: 5.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,917,009 km

• M1: 167,849 km (0.063 R)
• M2: 756,666 km (0.091 R)
• M3: 1,180,926 km (0.085 R)
• M4: 1,864,139 km (0.115 R)
• M5: 2,625,742 km (0.078 R)
• M6: 3,142,453 km (0.047 R)
• M7: 4,254,414 km (0.106 R)
• M8: 4,709,191 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.1

Radius: 11.5

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.67 AU - 2.53 AU

Year: 2064 Days

Day: 9.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,917,009 km

• M1: 143,315 km (0.11 R)
• M2: 560,842 km (0.109 R)
• M3: 1,057,807 km (0.103 R)
• M4: 1,466,658 km (0.085 R)
• M5: 2,173,358 km (0.059 R)
• M6: 3,011,704 km (0.075 R)
• M7: 4,763,196 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.4

Radius: 13.4

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.68 AU - 3.26 AU

Year: 3472 Days

Day: 11.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,917,009 km

• M1: 167,101 km (0.048 R)
• M2: 634,594 km (0.044 R)
• M3: 1,657,245 km (0.067 R)
• M4: 2,268,053 km (0.079 R)
• M5: 3,026,365 km (0.088 R)
• M6: 3,853,641 km (0.047 R)
• M7: 4,675,532 km (0.089 R)
• M8: 5,208,848 km (0.11 R)
• M9: 5,684,270 km (0.049 R)
• M10: 8,906,309 km (0.073 R)
• M11: 10,981,680 km (0.118 R)
• M12: 11,408,932 km (0.072 R)
• M13: 14,907,577 km (0.105 R)
• M14: 17,080,786 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.6

Radius: 9.4

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.12 AU - 4.1 AU

Year: 4652 Days

Day: 9.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,917,009 km

• M1: 116,986 km (0.082 R)
• M2: 921,074 km (0.108 R)
• M3: 1,348,475 km (0.116 R)
• M4: 1,648,269 km (0.119 R)
• M5: 2,503,670 km (0.097 R)
• M6: 4,327,717 km (0.071 R)
• M7: 5,747,849 km (0.118 R)
• M8: 11,842,766 km (0.039 R)
• M9: 12,279,292 km (0.105 R)
• M10: 15,537,085 km (0.084 R)
• M11: 19,450,266 km (0.063 R)
• M12: 19,813,490 km (0.082 R)
• M13: 21,440,217 km (0.036 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.6

Radius: 6.8

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.09 AU - 6.23 AU

Year: 9133 Days

Day: 15.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,917,009 km

• M1: 84,972 km (0.091 R)
• M2: 1,196,783 km (0.11 R)
• M3: 1,589,777 km (0.073 R)
• M4: 2,194,750 km (0.088 R)
• M5: 3,255,998 km (0.112 R)
• M6: 3,972,871 km (0.092 R)
• M7: 5,135,246 km (0.085 R)
• M8: 7,224,829 km (0.068 R)
• M9: 12,337,785 km (0.063 R)
• M10: 12,551,411 km (0.057 R)
• M11: 14,826,795 km (0.087 R)
• M12: 17,430,396 km (0.109 R)
• M13: 20,175,517 km (0.087 R)
• M14: 23,115,115 km (0.105 R)
• M15: 26,416,590 km (0.114 R)
• M16: 26,950,954 km (0.116 R)
• M17: 27,583,454 km (0.083 R)
• M18: 28,504,079 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 815.1

Radius: 3.2

Gravity: 79.6 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 6.55 AU - 7.03 AU

Year: 12000 Days

Day: 16.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 59,917,009 km

• M1: 41,738 km (0.117 R)
• M2: 200,461 km (0.114 R)
• M3: 633,697 km (0.067 R)
• M4: 903,571 km (0.039 R)
• M5: 1,218,923 km (0.097 R)
• M6: 1,814,323 km (0.119 R)
• M7: 2,137,305 km (0.107 R)
• M8: 2,804,212 km (0.089 R)
• M9: 3,336,332 km (0.094 R)
• M10: 3,708,232 km (0.12 R)
• M11: 5,124,924 km (0.116 R)
• M12: 6,701,087 km (0.078 R)
• M13: 7,334,484 km (0.084 R)
• M14: 8,145,903 km (0.096 R)
• M15: 8,916,033 km (0.094 R)
• M16: 9,267,588 km (0.079 R)
• M17: 10,052,229 km (0.116 R)
• M18: 11,752,259 km (0.056 R)
• M19: 11,871,937 km (0.079 R)
• M20: 14,509,348 km (0.047 R)
• M21: 15,636,269 km (0.051 R)
• M22: 17,668,257 km (0.095 R)
• M23: 18,142,482 km (0.085 R)
• M24: 19,532,396 km (0.088 R)
• M25: 20,468,579 km (0.064 R)
• M26: 22,429,807 km (0.119 R)
• M27: 23,173,009 km (0.096 R)
• M28: 24,708,332 km (0.114 R)
• M29: 27,450,611 km (0.09 R)
• M30: 29,497,559 km (0.114 R)
• M31: 30,276,664 km (0.078 R)
• M32: 30,728,001 km (0.086 R)
• M33: 34,993,336 km (0.109 R)
• M34: 38,176,778 km (0.058 R)
• M35: 42,667,108 km (0.082 R)
• M36: 43,662,682 km (0.042 R)
• M37: 45,700,504 km (0.056 R)
• M38: 49,651,234 km (0.111 R)
• M39: 51,709,252 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823

Radius: 7.6

Gravity: 14.25 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.45 AU - 8.69 AU

Year: 12750 Days

Day: 24.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,917,009 km

• M1: 94,546 km (0.062 R)
• M2: 339,587 km (0.096 R)
• M3: 672,592 km (0.064 R)
• M4: 942,317 km (0.086 R)
• M5: 1,272,031 km (0.059 R)
• M6: 1,709,754 km (0.074 R)
• M7: 2,384,141 km (0.073 R)
• M8: 3,149,334 km (0.087 R)
• M9: 3,615,930 km (0.099 R)
• M10: 4,495,117 km (0.098 R)
• M11: 6,669,073 km (0.096 R)
• M12: 7,707,731 km (0.084 R)
• M13: 9,000,705 km (0.117 R)
• M14: 10,544,107 km (0.101 R)
• M15: 14,559,912 km (0.05 R)
• M16: 15,124,345 km (0.107 R)
• M17: 18,411,160 km (0.084 R)
• M18: 19,406,883 km (0.109 R)
• M19: 20,438,211 km (0.109 R)
• M20: 23,654,565 km (0.104 R)
• M21: 29,589,412 km (0.079 R)
• M22: 33,563,778 km (0.036 R)
• M23: 34,053,562 km (0.108 R)
• M24: 35,932,810 km (0.058 R)
• M25: 55,883,481 km (0.096 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 13,745 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit