🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.6

Radius: 12.2

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.85 AU - 1.09 AU

Year: 659 Days

Day: 14.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,801,532 km

• M1: 155,133 km (0.073 R)
• M2: 644,916 km (0.07 R)
• M3: 1,080,246 km (0.103 R)
• M4: 2,036,476 km (0.047 R)
• M5: 2,572,934 km (0.105 R)
• M6: 2,952,464 km (0.065 R)
• M7: 3,773,457 km (0.074 R)
• M8: 4,440,514 km (0.085 R)
• M9: 5,201,219 km (0.119 R)
• M10: 6,342,202 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706

Radius: 11.6

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.05 AU - 1.27 AU

Year: 862 Days

Day: 7.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,801,532 km

• M1: 144,212 km (0.114 R)
• M2: 567,724 km (0.095 R)
• M3: 969,843 km (0.09 R)
• M4: 1,452,895 km (0.102 R)
• M5: 2,164,532 km (0.12 R)
• M6: 2,795,685 km (0.039 R)
• M7: 3,461,096 km (0.094 R)
• M8: 3,992,468 km (0.09 R)
• M9: 4,459,513 km (0.116 R)
• M10: 4,838,145 km (0.117 R)
• M11: 5,238,169 km (0.026 R)
• M12: 6,551,489 km (0.097 R)
• M13: 7,273,598 km (0.091 R)
• M14: 8,638,080 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.3

Radius: 10.8

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.21 AU - 1.73 AU

Year: 1230 Days

Day: 9 Hours

Environment

Temp: -199 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,801,532 km

• M1: 150,047 km (0.098 R)
• M2: 954,584 km (0.116 R)
• M3: 2,598,515 km (0.069 R)
• M4: 3,001,980 km (0.113 R)
• M5: 4,326,071 km (0.101 R)
• M6: 4,695,728 km (0.108 R)
• M7: 5,216,029 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.3

Radius: 13.8

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.88 AU - 2.5 AU

Year: 2237 Days

Day: 5.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,801,532 km

• M1: 171,738 km (0.099 R)
• M2: 656,136 km (0.046 R)
• M3: 1,187,358 km (0.098 R)
• M4: 2,108,432 km (0.094 R)
• M5: 3,776,598 km (0.062 R)
• M6: 4,437,222 km (0.104 R)
• M7: 5,887,574 km (0.09 R)
• M8: 6,335,919 km (0.114 R)
• M9: 6,921,295 km (0.115 R)
• M10: 7,665,096 km (0.107 R)
• M11: 9,242,605 km (0.096 R)
• M12: 10,408,571 km (0.058 R)
• M13: 10,909,425 km (0.1 R)
• M14: 12,682,010 km (0.072 R)
• M15: 13,751,186 km (0.071 R)
• M16: 14,354,963 km (0.099 R)
• M17: 15,816,085 km (0.11 R)
• M18: 18,025,347 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.9

Radius: 14.3

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.62 AU - 4.76 AU

Year: 5920 Days

Day: 14.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,801,532 km

• M1: 187,297 km (0.112 R)
• M2: 792,869 km (0.079 R)
• M3: 1,419,385 km (0.112 R)
• M4: 1,943,725 km (0.115 R)
• M5: 2,473,601 km (0.088 R)
• M6: 5,127,617 km (0.07 R)
• M7: 8,124,361 km (0.088 R)
• M8: 10,343,795 km (0.056 R)
• M9: 10,920,046 km (0.075 R)
• M10: 11,517,540 km (0.118 R)
• M11: 11,980,097 km (0.116 R)
• M12: 13,386,167 km (0.088 R)
• M13: 14,960,385 km (0.107 R)
• M14: 16,331,749 km (0.072 R)
• M15: 22,824,596 km (0.077 R)
• M16: 24,471,070 km (0.108 R)
• M17: 27,177,595 km (0.066 R)
• M18: 28,184,239 km (0.1 R)
• M19: 31,553,183 km (0.092 R)
• M20: 32,973,016 km (0.056 R)
• M21: 35,397,399 km (0.075 R)
• M22: 37,375,981 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.9

Radius: 7

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.06 AU - 8.1 AU

Year: 15854 Days

Day: 24.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 49,801,532 km

• M1: 87,066 km (0.104 R)
• M2: 374,294 km (0.061 R)
• M3: 1,102,088 km (0.057 R)
• M4: 2,033,633 km (0.109 R)
• M5: 2,280,919 km (0.045 R)
• M6: 3,617,576 km (0.112 R)
• M7: 4,452,631 km (0.1 R)
• M8: 5,106,523 km (0.117 R)
• M9: 5,597,803 km (0.083 R)
• M10: 9,320,845 km (0.062 R)
• M11: 11,949,728 km (0.076 R)
• M12: 12,704,450 km (0.046 R)
• M13: 14,487,955 km (0.099 R)
• M14: 14,790,442 km (0.099 R)
• M15: 16,894,088 km (0.093 R)
• M16: 19,189,368 km (0.096 R)
• M17: 20,073,042 km (0.09 R)
• M18: 20,298,187 km (0.119 R)
• M19: 22,724,216 km (0.115 R)
• M20: 25,075,745 km (0.087 R)
• M21: 26,310,376 km (0.077 R)
• M22: 29,670,045 km (0.111 R)
• M23: 29,962,359 km (0.119 R)
• M24: 30,850,671 km (0.09 R)
• M25: 35,229,251 km (0.088 R)
• M26: 35,886,884 km (0.036 R)
• M27: 37,680,263 km (0.087 R)
• M28: 38,137,733 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.2

Radius: 5.3

Gravity: 21.58 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 7.55 AU - 10.49 AU

Year: 18699 Days

Day: 20.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,801,532 km

• M1: 67,469 km (0.08 R)
• M2: 341,083 km (0.086 R)
• M3: 1,409,212 km (0.111 R)
• M4: 3,376,274 km (0.114 R)
• M5: 4,667,304 km (0.089 R)
• M6: 6,902,595 km (0.084 R)
• M7: 7,173,068 km (0.078 R)
• M8: 9,160,177 km (0.113 R)
• M9: 9,486,899 km (0.083 R)
• M10: 12,853,599 km (0.096 R)
• M11: 13,964,961 km (0.041 R)
• M12: 17,184,607 km (0.112 R)
• M13: 24,936,469 km (0.076 R)
• M14: 26,003,700 km (0.112 R)
• M15: 35,128,722 km (0.088 R)
• M16: 46,814,709 km (0.111 R)
• M17: 54,051,057 km (0.08 R)
• M18: 69,848,293 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.4

Radius: 3.8

Gravity: 12.7 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 9.03 AU - 10.13 AU

Year: 20467 Days

Day: 17.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,801,532 km

• M1: 49,218 km (0.078 R)
• M2: 752,328 km (0.09 R)
• M3: 1,093,261 km (0.101 R)
• M4: 1,529,489 km (0.075 R)
• M5: 4,285,530 km (0.102 R)
• M6: 8,599,035 km (0.053 R)
• M7: 16,250,218 km (0.078 R)
• M8: 16,749,875 km (0.094 R)
• M9: 29,117,580 km (0.113 R)
• M10: 31,363,792 km (0.116 R)
• M11: 31,804,358 km (0.048 R)
• M12: 45,879,273 km (0.083 R)
• M13: 47,886,278 km (0.101 R)
• M14: 49,503,581 km (0.074 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: 392 - 19,696 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit