🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.8

Radius: 13.7

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.64 AU - 1.02 AU

Year: 504 Days

Day: 11.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,193,014 km

• M1: 171,439 km (0.075 R)
• M2: 666,459 km (0.081 R)
• M3: 1,241,064 km (0.099 R)
• M4: 1,861,596 km (0.101 R)
• M5: 2,547,801 km (0.027 R)
• M6: 3,387,943 km (0.066 R)
• M7: 4,045,575 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.9

Radius: 10.5

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.77 AU - 1.03 AU

Year: 569 Days

Day: 5.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,193,014 km

• M1: 130,599 km (0.048 R)
• M2: 481,256 km (0.108 R)
• M3: 828,772 km (0.093 R)
• M4: 1,295,069 km (0.109 R)
• M5: 2,018,524 km (0.055 R)
• M6: 2,436,949 km (0.11 R)
• M7: 2,802,267 km (0.086 R)
• M8: 3,301,176 km (0.094 R)
• M9: 3,927,542 km (0.059 R)
• M10: 4,254,863 km (0.09 R)
• M11: 5,212,887 km (0.075 R)
• M12: 5,591,819 km (0.076 R)
• M13: 6,026,101 km (0.094 R)
• M14: 6,385,735 km (0.116 R)
• M15: 6,921,594 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.4

Radius: 9.6

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.53 AU - 1.71 AU

Year: 1375 Days

Day: 10.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,193,014 km

• M1: 119,828 km (0.085 R)
• M2: 479,461 km (0.107 R)
• M3: 779,255 km (0.058 R)
• M4: 1,147,416 km (0.042 R)
• M5: 1,659,040 km (0.113 R)
• M6: 1,958,535 km (0.099 R)
• M7: 2,945,582 km (0.096 R)
• M8: 4,028,222 km (0.113 R)
• M9: 4,466,693 km (0.083 R)
• M10: 4,801,792 km (0.076 R)
• M11: 5,418,734 km (0.113 R)
• M12: 6,020,566 km (0.033 R)
• M13: 6,361,051 km (0.037 R)
• M14: 6,666,380 km (0.088 R)
• M15: 7,641,908 km (0.046 R)
• M16: 8,795,906 km (0.11 R)
• M17: 9,324,585 km (0.072 R)
• M18: 10,510,298 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.7

Radius: 8.1

Gravity: 9.17 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.15 AU - 4.21 AU

Year: 4708 Days

Day: 10.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,193,014 km

• M1: 100,979 km (0.107 R)
• M2: 450,888 km (0.115 R)
• M3: 957,726 km (0.081 R)
• M4: 1,392,158 km (0.097 R)
• M5: 1,755,232 km (0.058 R)
• M6: 2,064,750 km (0.115 R)
• M7: 2,394,763 km (0.064 R)
• M8: 2,956,204 km (0.085 R)
• M9: 4,705,900 km (0.105 R)
• M10: 5,093,060 km (0.118 R)
• M11: 7,322,666 km (0.058 R)
• M12: 8,130,943 km (0.105 R)
• M13: 9,513,527 km (0.094 R)
• M14: 10,561,610 km (0.064 R)
• M15: 11,453,961 km (0.113 R)
• M16: 14,539,866 km (0.039 R)
• M17: 15,139,903 km (0.055 R)
• M18: 19,221,681 km (0.094 R)
• M19: 19,482,430 km (0.099 R)
• M20: 19,877,967 km (0.115 R)
• M21: 20,890,295 km (0.112 R)
• M22: 22,653,157 km (0.065 R)
• M23: 23,237,636 km (0.118 R)
• M24: 24,819,783 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.6

Radius: 12.7

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.39 AU - 5.31 AU

Year: 6050 Days

Day: 8 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,193,014 km

• M1: 157,975 km (0.081 R)
• M2: 675,135 km (0.072 R)
• M3: 1,485,208 km (0.106 R)
• M4: 2,064,301 km (0.03 R)
• M5: 4,370,352 km (0.115 R)
• M6: 4,835,153 km (0.073 R)
• M7: 7,139,558 km (0.093 R)
• M8: 7,676,465 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.3

Radius: 5.4

Gravity: 33.89 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 6.06 AU - 6.44 AU

Year: 10420 Days

Day: 16.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 73.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,193,014 km

• M1: 67,469 km (0.073 R)
• M2: 307,872 km (0.084 R)
• M3: 845,378 km (0.081 R)
• M4: 1,300,753 km (0.104 R)
• M5: 1,509,143 km (0.066 R)
• M6: 3,190,923 km (0.102 R)
• M7: 4,900,976 km (0.117 R)
• M8: 6,332,029 km (0.119 R)
• M9: 7,486,027 km (0.072 R)
• M10: 8,870,855 km (0.09 R)
• M11: 11,720,096 km (0.09 R)
• M12: 12,502,044 km (0.09 R)
• M13: 17,472,583 km (0.074 R)
• M14: 22,054,017 km (0.073 R)
• M15: 36,052,339 km (0.111 R)
• M16: 37,187,338 km (0.109 R)
• M17: 42,799,951 km (0.088 R)
• M18: 43,080,447 km (0.058 R)
• M19: 43,787,147 km (0.114 R)
• M20: 49,875,930 km (0.113 R)
• M21: 52,718,439 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.1

Radius: 6.4

Gravity: 16.07 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.81 AU - 8.85 AU

Year: 14611 Days

Day: 20.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,193,014 km

• M1: 79,736 km (0.07 R)
• M2: 352,752 km (0.112 R)
• M3: 1,136,345 km (0.119 R)
• M4: 2,893,672 km (0.087 R)
• M5: 4,881,528 km (0.079 R)
• M6: 5,295,914 km (0.097 R)
• M7: 7,278,984 km (0.105 R)
• M8: 8,981,407 km (0.113 R)
• M9: 11,763,180 km (0.047 R)
• M10: 14,365,285 km (0.096 R)
• M11: 23,449,167 km (0.074 R)
• M12: 25,431,488 km (0.114 R)
• M13: 30,409,208 km (0.081 R)
• M14: 32,641,956 km (0.12 R)
• M15: 43,975,640 km (0.101 R)
• M16: 53,553,794 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535

Radius: 7.2

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.62 AU - 9.24 AU

Year: 16322 Days

Day: 16.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,193,014 km

• M1: 95,443 km (0.12 R)
• M2: 335,099 km (0.107 R)
• M3: 663,616 km (0.091 R)
• M4: 1,090,868 km (0.12 R)
• M5: 1,690,306 km (0.072 R)
• M6: 2,686,927 km (0.071 R)
• M7: 3,522,431 km (0.068 R)
• M8: 5,153,946 km (0.116 R)
• M9: 6,514,838 km (0.032 R)
• M10: 7,819,481 km (0.064 R)
• M11: 9,341,789 km (0.074 R)
• M12: 9,711,146 km (0.039 R)
• M13: 10,366,983 km (0.112 R)
• M14: 12,322,526 km (0.044 R)
• M15: 14,652,214 km (0.045 R)
• M16: 15,441,193 km (0.065 R)
• M17: 17,025,434 km (0.092 R)
• M18: 22,330,923 km (0.095 R)
• M19: 24,550,207 km (0.064 R)
• M20: 31,374,563 km (0.117 R)
• M21: 37,350,400 km (0.09 R)
• M22: 52,643,790 km (0.037 R)
• M23: 53,142,699 km (0.093 R)
• M24: 55,341,189 km (0.087 R)
• M25: 59,558,054 km (0.114 R)
• M26: 60,644,733 km (0.074 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 11,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit