🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.6

Radius: 8.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.44 AU - 0.7 AU

Year: 297 Days

Day: 12 Hours

Environment

Temp: -151 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,565,219 km

• M1: 100,679 km (0.076 R)
• M2: 356,641 km (0.067 R)
• M3: 636,539 km (0.12 R)
• M4: 980,614 km (0.114 R)
• M5: 1,260,362 km (0.109 R)
• M6: 1,782,608 km (0.028 R)
• M7: 2,062,356 km (0.047 R)
• M8: 2,340,758 km (0.104 R)
• M9: 2,780,127 km (0.078 R)
• M10: 3,361,015 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208

Radius: 8.4

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.79 AU - 1.11 AU

Year: 639 Days

Day: 6.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,565,219 km

• M1: 105,466 km (0.08 R)
• M2: 439,668 km (0.1 R)
• M3: 754,272 km (0.112 R)
• M4: 1,433,447 km (0.086 R)
• M5: 1,948,811 km (0.107 R)
• M6: 2,687,825 km (0.085 R)
• M7: 3,181,348 km (0.109 R)
• M8: 3,869,349 km (0.11 R)
• M9: 4,709,491 km (0.116 R)
• M10: 5,030,079 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.2

Radius: 12.4

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1 AU - 1.54 AU

Year: 988 Days

Day: 11.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,565,219 km

• M1: 162,912 km (0.119 R)
• M2: 557,850 km (0.082 R)
• M3: 973,433 km (0.036 R)
• M4: 1,805,646 km (0.113 R)
• M5: 2,366,489 km (0.105 R)
• M6: 3,002,728 km (0.076 R)
• M7: 3,735,160 km (0.11 R)
• M8: 4,160,616 km (0.058 R)
• M9: 4,548,673 km (0.114 R)
• M10: 5,053,865 km (0.1 R)
• M11: 5,516,571 km (0.086 R)
• M12: 7,608,548 km (0.106 R)
• M13: 8,088,458 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.4

Radius: 14.4

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.13 AU - 3.25 AU

Year: 3045 Days

Day: 13.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,565,219 km

• M1: 179,817 km (0.087 R)
• M2: 679,773 km (0.106 R)
• M3: 1,398,890 km (0.082 R)
• M4: 2,408,975 km (0.064 R)
• M5: 3,725,585 km (0.117 R)
• M6: 4,390,099 km (0.118 R)
• M7: 7,105,899 km (0.048 R)
• M8: 12,340,328 km (0.03 R)
• M9: 13,086,971 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.2

Radius: 9.8

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.35 AU - 3.17 AU

Year: 3165 Days

Day: 6.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,565,219 km

• M1: 121,922 km (0.076 R)
• M2: 443,408 km (0.075 R)
• M3: 1,137,991 km (0.062 R)
• M4: 1,588,729 km (0.105 R)
• M5: 3,037,734 km (0.09 R)
• M6: 3,373,881 km (0.115 R)
• M7: 4,017,301 km (0.041 R)
• M8: 4,602,827 km (0.079 R)
• M9: 5,121,184 km (0.111 R)
• M10: 6,108,081 km (0.108 R)
• M11: 7,466,579 km (0.057 R)
• M12: 8,838,392 km (0.102 R)
• M13: 10,136,453 km (0.064 R)
• M14: 11,856,678 km (0.062 R)
• M15: 13,292,220 km (0.077 R)
• M16: 13,715,881 km (0.102 R)
• M17: 15,347,545 km (0.065 R)
• M18: 16,612,844 km (0.12 R)
• M19: 18,406,223 km (0.096 R)
• M20: 19,590,589 km (0.116 R)
• M21: 21,719,516 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.1

Radius: 11.6

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.78 AU - 3.1 AU

Year: 3480 Days

Day: 6.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,565,219 km

• M1: 144,512 km (0.115 R)
• M2: 849,267 km (0.083 R)
• M3: 1,495,979 km (0.103 R)
• M4: 2,035,877 km (0.077 R)
• M5: 3,021,877 km (0.105 R)
• M6: 3,833,894 km (0.059 R)
• M7: 4,323,378 km (0.031 R)
• M8: 4,900,527 km (0.099 R)
• M9: 5,810,232 km (0.08 R)
• M10: 6,975,300 km (0.097 R)
• M11: 8,158,170 km (0.118 R)
• M12: 8,660,221 km (0.07 R)
• M13: 10,025,152 km (0.109 R)
• M14: 14,781,317 km (0.044 R)
• M15: 17,153,490 km (0.096 R)
• M16: 18,773,186 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.7

Radius: 13.9

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.8 AU - 4.12 AU

Year: 5439 Days

Day: 12 Hours

Environment

Temp: -224 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,565,219 km

• M1: 173,982 km (0.116 R)
• M2: 631,153 km (0.101 R)
• M3: 1,209,050 km (0.071 R)
• M4: 2,041,861 km (0.117 R)
• M5: 2,483,923 km (0.114 R)
• M6: 3,270,060 km (0.105 R)
• M7: 3,732,916 km (0.11 R)
• M8: 4,239,753 km (0.037 R)
• M9: 4,918,928 km (0.114 R)
• M10: 5,558,010 km (0.114 R)
• M11: 7,200,295 km (0.035 R)
• M12: 7,779,089 km (0.102 R)
• M13: 9,422,571 km (0.094 R)
• M14: 10,799,470 km (0.107 R)
• M15: 11,468,173 km (0.098 R)
• M16: 12,692,482 km (0.063 R)
• M17: 13,386,915 km (0.076 R)
• M18: 18,037,165 km (0.118 R)
• M19: 20,622,515 km (0.105 R)
• M20: 21,305,579 km (0.11 R)
• M21: 26,597,903 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.9

Radius: 14.4

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.42 AU - 5.14 AU

Year: 6112 Days

Day: 9.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,565,219 km

• M1: 188,344 km (0.113 R)
• M2: 797,656 km (0.084 R)
• M3: 1,446,013 km (0.101 R)
• M4: 2,211,356 km (0.097 R)
• M5: 4,883,922 km (0.096 R)
• M6: 5,852,717 km (0.112 R)
• M7: 6,383,491 km (0.08 R)
• M8: 7,318,777 km (0.068 R)
• M9: 9,804,794 km (0.09 R)
• M10: 11,951,972 km (0.098 R)
• M11: 12,580,134 km (0.096 R)
• M12: 18,964,223 km (0.047 R)
• M13: 20,573,597 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 655.5

Radius: 5.2

Gravity: 24.24 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.88 AU - 9.36 AU

Year: 14519 Days

Day: 15 Hours

Environment

Temp: -236 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,565,219 km

• M1: 64,776 km (0.117 R)
• M2: 273,016 km (0.075 R)
• M3: 486,193 km (0.089 R)
• M4: 735,573 km (0.039 R)
• M5: 976,425 km (0.026 R)
• M6: 1,665,772 km (0.065 R)
• M7: 2,065,797 km (0.088 R)
• M8: 2,840,564 km (0.096 R)
• M9: 3,006,618 km (0.105 R)
• M10: 3,625,953 km (0.11 R)
• M11: 3,793,353 km (0.118 R)
• M12: 4,976,224 km (0.088 R)
• M13: 5,183,267 km (0.063 R)
• M14: 6,589,637 km (0.094 R)
• M15: 8,522,591 km (0.09 R)
• M16: 10,976,744 km (0.105 R)
• M17: 13,864,731 km (0.043 R)
• M18: 14,414,054 km (0.032 R)
• M19: 15,776,292 km (0.116 R)
• M20: 24,382,658 km (0.078 R)
• M21: 29,219,307 km (0.108 R)
• M22: 46,563,833 km (0.079 R)
• M23: 48,571,885 km (0.105 R)
• M24: 49,043,418 km (0.111 R)
• M25: 56,833,129 km (0.097 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 441 - 15,106 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit