🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.6

Radius: 13.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.71 AU - 0.75 AU

Year: 416 Days

Day: 7.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,239,892 km

• M1: 172,935 km (0.059 R)
• M2: 728,542 km (0.104 R)
• M3: 1,176,138 km (0.027 R)
• M4: 2,003,115 km (0.104 R)
• M5: 2,443,532 km (0.102 R)
• M6: 3,265,273 km (0.048 R)
• M7: 3,966,887 km (0.047 R)
• M8: 4,551,066 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.1

Radius: 9.7

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.74 AU - 0.82 AU

Year: 459 Days

Day: 11.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,239,892 km

• M1: 120,725 km (0.079 R)
• M2: 1,025,643 km (0.104 R)
• M3: 1,394,402 km (0.041 R)
• M4: 1,843,794 km (0.088 R)
• M5: 2,505,316 km (0.071 R)
• M6: 3,811,455 km (0.102 R)
• M7: 4,295,852 km (0.083 R)
• M8: 5,287,836 km (0.087 R)
• M9: 5,838,057 km (0.114 R)
• M10: 6,369,129 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.2

Radius: 13.4

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.51 AU - 1.79 AU

Year: 1413 Days

Day: 8.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,239,892 km

• M1: 166,652 km (0.112 R)
• M2: 604,226 km (0.066 R)
• M3: 1,482,814 km (0.12 R)
• M4: 1,973,346 km (0.12 R)
• M5: 2,536,133 km (0.049 R)
• M6: 4,545,083 km (0.103 R)
• M7: 6,162,834 km (0.102 R)
• M8: 7,352,436 km (0.088 R)
• M9: 8,055,845 km (0.102 R)
• M10: 9,416,887 km (0.108 R)
• M11: 9,903,080 km (0.041 R)
• M12: 11,058,723 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.5

Radius: 11.4

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.39 AU - 2.17 AU

Year: 1584 Days

Day: 11.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,239,892 km

• M1: 144,512 km (0.035 R)
• M2: 735,274 km (0.088 R)
• M3: 1,171,651 km (0.112 R)
• M4: 1,752,389 km (0.052 R)
• M5: 2,556,927 km (0.093 R)
• M6: 3,544,123 km (0.091 R)
• M7: 7,949,930 km (0.059 R)
• M8: 9,541,352 km (0.097 R)
• M9: 10,160,538 km (0.103 R)
• M10: 11,192,613 km (0.084 R)
• M11: 11,588,001 km (0.088 R)
• M12: 11,992,813 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.7

Radius: 12.4

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.96 AU - 2.68 AU

Year: 2356 Days

Day: 14 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,239,892 km

• M1: 156,629 km (0.079 R)
• M2: 984,055 km (0.102 R)
• M3: 1,398,291 km (0.075 R)
• M4: 1,803,253 km (0.118 R)
• M5: 2,749,758 km (0.064 R)
• M6: 3,187,781 km (0.068 R)
• M7: 3,616,379 km (0.114 R)
• M8: 4,124,114 km (0.11 R)
• M9: 5,455,535 km (0.101 R)
• M10: 5,940,232 km (0.109 R)
• M11: 6,821,962 km (0.116 R)
• M12: 7,234,254 km (0.09 R)
• M13: 7,632,035 km (0.117 R)
• M14: 9,479,867 km (0.051 R)
• M15: 10,411,862 km (0.054 R)
• M16: 11,609,692 km (0.044 R)
• M17: 12,242,043 km (0.076 R)
• M18: 16,635,732 km (0.111 R)
• M19: 17,879,339 km (0.091 R)
• M20: 18,269,939 km (0.094 R)
• M21: 19,068,193 km (0.067 R)
• M22: 19,534,789 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115

Radius: 8.3

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.18 AU - 2.8 AU

Year: 2620 Days

Day: 13.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,239,892 km

• M1: 103,223 km (0.095 R)
• M2: 425,756 km (0.097 R)
• M3: 897,737 km (0.062 R)
• M4: 1,484,310 km (0.07 R)
• M5: 3,460,348 km (0.032 R)
• M6: 3,718,853 km (0.117 R)
• M7: 4,810,918 km (0.084 R)
• M8: 7,895,028 km (0.051 R)
• M9: 8,646,009 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480

Radius: 13.1

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.89 AU - 3.97 AU

Year: 5195 Days

Day: 8.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,239,892 km

• M1: 162,912 km (0.073 R)
• M2: 879,486 km (0.092 R)
• M3: 1,335,610 km (0.033 R)
• M4: 1,887,327 km (0.041 R)
• M5: 2,739,287 km (0.096 R)
• M6: 3,150,082 km (0.072 R)
• M7: 3,748,623 km (0.107 R)
• M8: 4,304,529 km (0.104 R)
• M9: 5,228,296 km (0.117 R)
• M10: 6,012,039 km (0.111 R)
• M11: 6,872,676 km (0.068 R)
• M12: 7,778,790 km (0.086 R)
• M13: 11,980,994 km (0.113 R)
• M14: 12,408,096 km (0.025 R)
• M15: 13,292,968 km (0.09 R)
• M16: 14,752,594 km (0.07 R)
• M17: 15,188,672 km (0.089 R)
• M18: 16,548,666 km (0.103 R)
• M19: 17,378,635 km (0.092 R)
• M20: 18,738,779 km (0.098 R)
• M21: 20,369,246 km (0.115 R)
• M22: 23,465,772 km (0.076 R)
• M23: 24,513,406 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.4

Radius: 8.2

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 4.72 AU - 5.96 AU

Year: 8229 Days

Day: 14.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,239,892 km

• M1: 106,962 km (0.111 R)
• M2: 461,659 km (0.118 R)
• M3: 748,139 km (0.092 R)
• M4: 1,156,691 km (0.095 R)
• M5: 1,413,550 km (0.117 R)
• M6: 1,796,521 km (0.107 R)
• M7: 2,128,329 km (0.083 R)
• M8: 3,470,072 km (0.118 R)
• M9: 4,225,392 km (0.062 R)
• M10: 6,625,540 km (0.039 R)
• M11: 7,227,372 km (0.044 R)
• M12: 8,282,337 km (0.118 R)
• M13: 8,758,357 km (0.086 R)
• M14: 9,717,578 km (0.046 R)
• M15: 11,155,214 km (0.106 R)
• M16: 12,006,426 km (0.093 R)
• M17: 14,446,517 km (0.103 R)
• M18: 17,478,118 km (0.114 R)
• M19: 17,973,885 km (0.104 R)
• M20: 18,698,387 km (0.06 R)
• M21: 22,532,132 km (0.119 R)
• M22: 30,984,711 km (0.088 R)
• M23: 32,874,880 km (0.111 R)
• M24: 35,063,946 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.6

Radius: 5.2

Gravity: 22.84 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.42 AU - 12.18 AU

Year: 23668 Days

Day: 23.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,239,892 km

• M1: 65,673 km (0.061 R)
• M2: 347,665 km (0.111 R)
• M3: 536,009 km (0.081 R)
• M4: 1,038,658 km (0.089 R)
• M5: 4,864,624 km (0.111 R)
• M6: 5,129,113 km (0.106 R)
• M7: 5,895,652 km (0.119 R)
• M8: 7,703,692 km (0.096 R)
• M9: 9,556,013 km (0.086 R)
• M10: 11,420,301 km (0.104 R)
• M11: 14,112,914 km (0.061 R)
• M12: 17,461,811 km (0.115 R)
• M13: 18,443,024 km (0.048 R)
• M14: 22,321,049 km (0.089 R)
• M15: 33,906,956 km (0.105 R)
• M16: 37,288,765 km (0.078 R)
• M17: 48,596,569 km (0.084 R)
• M18: 58,387,151 km (0.12 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: 179 - 19,392 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit