🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.8 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.3

Radius: 10.2

Gravity: 9.24 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.42 AU - 3.78 AU

Year: 4410 Days

Day: 12.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 170.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,026,850 km

• M1: 147,952 km (0.079 R)
• M2: 604,974 km (0.052 R)
• M3: 1,311,973 km (0.102 R)
• M4: 2,245,464 km (0.072 R)
• M5: 3,082,464 km (0.094 R)
• M6: 4,406,106 km (0.086 R)
• M7: 5,057,306 km (0.108 R)
• M8: 5,891,912 km (0.116 R)
• M9: 6,390,223 km (0.079 R)
• M10: 7,869,895 km (0.109 R)
• M11: 8,591,855 km (0.03 R)
• M12: 14,099,599 km (0.084 R)
• M13: 15,049,396 km (0.112 R)
• M14: 15,745,176 km (0.098 R)
• M15: 18,480,872 km (0.098 R)
• M16: 20,943,253 km (0.114 R)
• M17: 22,852,272 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.6

Radius: 12.9

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.65 AU - 3.97 AU

Year: 4802 Days

Day: 12.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,026,850 km

• M1: 160,369 km (0.102 R)
• M2: 567,425 km (0.106 R)
• M3: 1,082,939 km (0.107 R)
• M4: 1,793,379 km (0.049 R)
• M5: 3,693,272 km (0.038 R)
• M6: 4,292,412 km (0.103 R)
• M7: 5,627,872 km (0.068 R)
• M8: 7,051,894 km (0.111 R)
• M9: 8,704,053 km (0.117 R)
• M10: 10,070,330 km (0.092 R)
• M11: 13,540,702 km (0.088 R)
• M12: 14,297,816 km (0.06 R)
• M13: 16,015,499 km (0.106 R)
• M14: 18,059,605 km (0.1 R)
• M15: 20,552,204 km (0.083 R)
• M16: 22,886,081 km (0.082 R)
• M17: 24,908,494 km (0.045 R)
• M18: 25,635,540 km (0.064 R)
• M19: 26,794,624 km (0.09 R)
• M20: 27,216,939 km (0.115 R)
• M21: 27,729,611 km (0.056 R)
• M22: 28,335,781 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.1

Radius: 11.2

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.76 AU - 4.04 AU

Year: 4973 Days

Day: 10.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,026,850 km

• M1: 139,276 km (0.063 R)
• M2: 582,385 km (0.087 R)
• M3: 1,425,668 km (0.083 R)
• M4: 2,217,489 km (0.05 R)
• M5: 2,659,401 km (0.058 R)
• M6: 5,097,099 km (0.072 R)
• M7: 5,899,691 km (0.078 R)
• M8: 6,387,081 km (0.119 R)
• M9: 10,744,269 km (0.069 R)
• M10: 11,104,351 km (0.11 R)
• M11: 15,114,172 km (0.073 R)
• M12: 16,925,802 km (0.103 R)
• M13: 18,419,238 km (0.114 R)
• M14: 20,361,467 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528

Radius: 14.7

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.91 AU - 5.45 AU

Year: 6537 Days

Day: 11.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,026,850 km

• M1: 184,305 km (0.094 R)
• M2: 944,860 km (0.071 R)
• M3: 1,442,722 km (0.096 R)
• M4: 2,046,798 km (0.084 R)
• M5: 2,709,965 km (0.077 R)
• M6: 3,823,572 km (0.096 R)
• M7: 5,453,441 km (0.069 R)
• M8: 8,572,257 km (0.083 R)
• M9: 9,349,418 km (0.111 R)
• M10: 9,995,681 km (0.1 R)
• M11: 10,903,740 km (0.077 R)
• M12: 12,317,290 km (0.056 R)
• M13: 12,884,416 km (0.035 R)
• M14: 13,740,415 km (0.084 R)
• M15: 16,537,446 km (0.057 R)
• M16: 17,742,906 km (0.095 R)
• M17: 18,533,979 km (0.08 R)
• M18: 24,261,932 km (0.089 R)
• M19: 29,399,871 km (0.086 R)

Asteroid Belt

Center: 6.4 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.6

Radius: 7.5

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.89 AU - 9.35 AU

Year: 14940 Days

Day: 22.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,026,850 km

• M1: 93,349 km (0.081 R)
• M2: 369,507 km (0.076 R)
• M3: 745,446 km (0.117 R)
• M4: 1,532,929 km (0.11 R)
• M5: 1,914,404 km (0.12 R)
• M6: 2,488,561 km (0.091 R)
• M7: 2,995,847 km (0.11 R)
• M8: 3,521,833 km (0.096 R)
• M9: 3,974,965 km (0.111 R)
• M10: 6,293,134 km (0.095 R)
• M11: 8,701,510 km (0.1 R)
• M12: 13,371,955 km (0.057 R)
• M13: 19,484,375 km (0.087 R)
• M14: 21,138,778 km (0.114 R)
• M15: 21,464,302 km (0.08 R)
• M16: 21,792,969 km (0.073 R)
• M17: 23,314,230 km (0.119 R)
• M18: 24,545,420 km (0.057 R)
• M19: 27,136,755 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.5

Radius: 7.4

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 7.69 AU - 9.11 AU

Year: 15719 Days

Day: 19.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,026,850 km

• M1: 92,451 km (0.073 R)
• M2: 336,296 km (0.094 R)
• M3: 895,194 km (0.067 R)
• M4: 1,897,948 km (0.117 R)
• M5: 2,332,081 km (0.117 R)
• M6: 3,619,072 km (0.043 R)
• M7: 4,389,800 km (0.08 R)
• M8: 5,682,774 km (0.088 R)
• M9: 7,994,211 km (0.063 R)
• M10: 9,814,668 km (0.101 R)
• M11: 14,309,784 km (0.068 R)
• M12: 15,241,779 km (0.116 R)
• M13: 16,028,365 km (0.058 R)
• M14: 16,588,609 km (0.05 R)
• M15: 19,307,101 km (0.091 R)
• M16: 20,227,577 km (0.081 R)
• M17: 23,322,308 km (0.094 R)
• M18: 25,189,589 km (0.08 R)
• M19: 26,459,675 km (0.115 R)
• M20: 31,871,228 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 417.3

Radius: 3.1

Gravity: 43.42 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 7.9 AU - 9.54 AU

Year: 16626 Days

Day: 15.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,026,850 km

• M1: 38,746 km (0.101 R)
• M2: 299,196 km (0.075 R)
• M3: 645,365 km (0.091 R)
• M4: 5,162,623 km (0.104 R)
• M5: 10,703,877 km (0.106 R)
• M6: 12,847,016 km (0.071 R)
• M7: 17,799,903 km (0.026 R)
• M8: 18,195,739 km (0.12 R)
• M9: 20,177,761 km (0.096 R)
• M10: 22,116,998 km (0.044 R)
• M11: 31,116,507 km (0.106 R)
• M12: 31,460,133 km (0.095 R)
• M13: 46,322,532 km (0.109 R)
• M14: 46,620,830 km (0.076 R)
• M15: 48,131,469 km (0.114 R)
• M16: 48,898,906 km (0.058 R)
• M17: 53,675,417 km (0.067 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 147 - 16,892 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit