🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.7

Radius: 9.4

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.6 AU - 0.92 AU

Year: 466 Days

Day: 5.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,053,373 km

• M1: 116,836 km (0.08 R)
• M2: 490,681 km (0.059 R)
• M3: 929,003 km (0.106 R)
• M4: 1,542,653 km (0.079 R)
• M5: 2,011,044 km (0.081 R)
• M6: 2,310,689 km (0.12 R)
• M7: 2,710,265 km (0.107 R)
• M8: 3,039,679 km (0.095 R)
• M9: 3,563,272 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.6

Radius: 12.2

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.06 AU - 1.76 AU

Year: 1177 Days

Day: 7.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,053,373 km

• M1: 154,235 km (0.046 R)
• M2: 747,391 km (0.072 R)
• M3: 1,428,510 km (0.118 R)
• M4: 1,816,717 km (0.093 R)
• M5: 2,297,823 km (0.078 R)
• M6: 2,814,086 km (0.076 R)
• M7: 3,295,940 km (0.037 R)
• M8: 5,424,269 km (0.101 R)
• M9: 6,325,148 km (0.078 R)
• M10: 6,766,461 km (0.095 R)
• M11: 8,849,761 km (0.103 R)
• M12: 9,234,677 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.4

Radius: 14.6

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.79 AU - 2.85 AU

Year: 2484 Days

Day: 6.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,053,373 km

• M1: 181,612 km (0.094 R)
• M2: 666,907 km (0.104 R)
• M3: 1,140,385 km (0.107 R)
• M4: 1,841,849 km (0.098 R)
• M5: 2,357,363 km (0.087 R)
• M6: 4,793,265 km (0.119 R)
• M7: 6,110,325 km (0.093 R)
• M8: 7,323,564 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.9

Radius: 13.8

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.89 AU - 3.63 AU

Year: 4137 Days

Day: 7.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,053,373 km

• M1: 171,589 km (0.113 R)
• M2: 713,432 km (0.077 R)
• M3: 1,217,278 km (0.105 R)
• M4: 1,757,625 km (0.092 R)
• M5: 2,214,048 km (0.1 R)
• M6: 3,338,576 km (0.12 R)
• M7: 4,273,712 km (0.085 R)
• M8: 4,882,725 km (0.115 R)
• M9: 5,623,982 km (0.113 R)
• M10: 6,439,291 km (0.084 R)
• M11: 7,035,289 km (0.052 R)
• M12: 8,470,680 km (0.086 R)
• M13: 12,815,302 km (0.117 R)
• M14: 13,714,983 km (0.105 R)
• M15: 14,369,324 km (0.069 R)
• M16: 14,801,064 km (0.095 R)
• M17: 16,354,638 km (0.107 R)
• M18: 17,305,332 km (0.113 R)
• M19: 18,292,528 km (0.087 R)
• M20: 19,086,145 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842

Radius: 11.9

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.23 AU - 4.99 AU

Year: 5857 Days

Day: 9.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,053,373 km

• M1: 152,440 km (0.077 R)
• M2: 594,951 km (0.084 R)
• M3: 1,133,952 km (0.051 R)
• M4: 1,579,903 km (0.108 R)
• M5: 2,387,732 km (0.078 R)
• M6: 3,054,041 km (0.083 R)
• M7: 4,057,393 km (0.119 R)
• M8: 4,649,352 km (0.074 R)
• M9: 5,210,195 km (0.041 R)
• M10: 5,629,368 km (0.067 R)
• M11: 7,650,136 km (0.112 R)
• M12: 9,184,112 km (0.046 R)
• M13: 10,962,233 km (0.113 R)
• M14: 13,342,335 km (0.082 R)
• M15: 15,553,242 km (0.106 R)
• M16: 18,890,770 km (0.114 R)
• M17: 22,836,713 km (0.118 R)
• M18: 23,638,259 km (0.1 R)
• M19: 25,724,551 km (0.12 R)
• M20: 26,592,517 km (0.051 R)
• M21: 27,300,714 km (0.118 R)
• M22: 30,260,358 km (0.089 R)
• M23: 31,916,706 km (0.109 R)
• M24: 33,427,644 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.4

Radius: 12.5

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.7 AU - 4.66 AU

Year: 6007 Days

Day: 10.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,053,373 km

• M1: 199,414 km (0.083 R)
• M2: 596,596 km (0.08 R)
• M3: 1,037,012 km (0.112 R)
• M4: 2,110,527 km (0.12 R)
• M5: 3,421,303 km (0.098 R)
• M6: 4,253,516 km (0.094 R)
• M7: 4,744,796 km (0.086 R)
• M8: 7,101,561 km (0.114 R)
• M9: 10,844,050 km (0.12 R)
• M10: 12,581,031 km (0.093 R)
• M11: 14,382,040 km (0.118 R)
• M12: 19,874,825 km (0.105 R)
• M13: 21,476,869 km (0.074 R)
• M14: 24,119,814 km (0.113 R)
• M15: 24,771,911 km (0.06 R)
• M16: 25,856,496 km (0.045 R)
• M17: 26,453,541 km (0.038 R)
• M18: 28,570,501 km (0.108 R)
• M19: 29,763,244 km (0.043 R)
• M20: 31,084,493 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.4

Radius: 4.5

Gravity: 28.07 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.96 AU - 8.12 AU

Year: 11756 Days

Day: 22.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,053,373 km

• M1: 56,398 km (0.102 R)
• M2: 199,414 km (0.116 R)
• M3: 642,224 km (0.08 R)
• M4: 848,519 km (0.031 R)
• M5: 1,167,911 km (0.087 R)
• M6: 1,382,284 km (0.095 R)
• M7: 1,682,826 km (0.103 R)
• M8: 1,957,039 km (0.116 R)
• M9: 3,168,184 km (0.054 R)
• M10: 3,409,934 km (0.101 R)
• M11: 4,472,378 km (0.099 R)
• M12: 4,745,693 km (0.099 R)
• M13: 5,427,112 km (0.112 R)
• M14: 6,245,711 km (0.089 R)
• M15: 8,857,391 km (0.091 R)
• M16: 9,435,287 km (0.101 R)
• M17: 11,264,570 km (0.104 R)
• M18: 11,543,869 km (0.109 R)
• M19: 12,827,868 km (0.09 R)
• M20: 13,441,817 km (0.119 R)
• M21: 17,842,239 km (0.076 R)
• M22: 19,472,407 km (0.096 R)
• M23: 22,405,423 km (0.096 R)
• M24: 24,392,232 km (0.076 R)
• M25: 26,005,645 km (0.12 R)
• M26: 27,993,352 km (0.1 R)
• M27: 34,209,443 km (0.094 R)
• M28: 36,958,004 km (0.064 R)
• M29: 38,072,359 km (0.075 R)
• M30: 38,954,538 km (0.106 R)
• M31: 44,119,853 km (0.103 R)
• M32: 47,515,276 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.8

Radius: 8

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 7.39 AU - 7.41 AU

Year: 14150 Days

Day: 24.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,053,373 km

• M1: 99,483 km (0.115 R)
• M2: 1,153,699 km (0.085 R)
• M3: 1,542,354 km (0.049 R)
• M4: 2,163,335 km (0.055 R)
• M5: 2,438,146 km (0.097 R)
• M6: 3,180,152 km (0.11 R)
• M7: 4,548,374 km (0.086 R)
• M8: 5,851,521 km (0.062 R)
• M9: 7,787,168 km (0.116 R)
• M10: 9,023,893 km (0.09 R)
• M11: 11,002,475 km (0.036 R)
• M12: 11,941,650 km (0.1 R)
• M13: 13,318,698 km (0.078 R)
• M14: 14,798,670 km (0.045 R)
• M15: 18,890,621 km (0.073 R)
• M16: 21,017,603 km (0.1 R)
• M17: 25,041,038 km (0.104 R)
• M18: 30,898,543 km (0.104 R)
• M19: 31,472,400 km (0.078 R)
• M20: 34,942,023 km (0.085 R)
• M21: 37,090,099 km (0.115 R)
• M22: 38,262,348 km (0.033 R)
• M23: 45,670,435 km (0.08 R)
• M24: 55,484,354 km (0.067 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 269 - 17,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit