🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.49 AU - 0.79 AU

Year: 331 Days

Day: 37.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.5

Radius: 10.6

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.82 AU - 0.88 AU

Year: 506 Days

Day: 9.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,793,265 km

• M1: 131,945 km (0.057 R)
• M2: 496,515 km (0.1 R)
• M3: 850,613 km (0.055 R)
• M4: 1,394,551 km (0.116 R)
• M5: 1,809,386 km (0.082 R)
• M6: 2,763,821 km (0.112 R)
• M7: 3,140,359 km (0.098 R)
• M8: 4,052,906 km (0.1 R)
• M9: 5,004,498 km (0.068 R)
• M10: 5,448,205 km (0.117 R)
• M11: 5,882,338 km (0.06 R)
• M12: 6,414,757 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.9

Radius: 10.5

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.22 AU - 1.32 AU

Year: 924 Days

Day: 7.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,793,265 km

• M1: 130,599 km (0.104 R)
• M2: 603,627 km (0.095 R)
• M3: 933,491 km (0.109 R)
• M4: 2,140,297 km (0.057 R)
• M5: 2,958,896 km (0.086 R)
• M6: 4,123,516 km (0.072 R)
• M7: 4,726,246 km (0.115 R)
• M8: 5,607,826 km (0.081 R)
• M9: 6,409,521 km (0.107 R)
• M10: 7,398,213 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.2

Radius: 13.1

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.01 AU - 1.55 AU

Year: 935 Days

Day: 10 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,793,265 km

• M1: 163,361 km (0.075 R)
• M2: 595,998 km (0.093 R)
• M3: 1,135,448 km (0.112 R)
• M4: 1,637,349 km (0.068 R)
• M5: 2,079,859 km (0.044 R)
• M6: 3,887,301 km (0.082 R)
• M7: 5,418,884 km (0.12 R)
• M8: 6,180,337 km (0.106 R)
• M9: 7,467,627 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.8

Radius: 10.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.14 AU - 1.64 AU

Year: 1058 Days

Day: 12.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,793,265 km

• M1: 136,433 km (0.096 R)
• M2: 486,043 km (0.07 R)
• M3: 1,002,755 km (0.116 R)
• M4: 1,864,289 km (0.083 R)
• M5: 2,363,796 km (0.063 R)
• M6: 3,200,347 km (0.098 R)
• M7: 3,580,924 km (0.106 R)
• M8: 3,921,110 km (0.113 R)
• M9: 4,358,085 km (0.12 R)
• M10: 5,108,169 km (0.057 R)
• M11: 5,576,709 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.9

Radius: 10.1

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.5 AU - 1.76 AU

Year: 1344 Days

Day: 7.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,793,265 km

• M1: 125,662 km (0.074 R)
• M2: 475,422 km (0.057 R)
• M3: 984,354 km (0.031 R)
• M4: 1,526,497 km (0.094 R)
• M5: 2,161,240 km (0.104 R)
• M6: 2,897,561 km (0.119 R)
• M7: 4,051,709 km (0.081 R)
• M8: 5,052,818 km (0.115 R)
• M9: 5,468,251 km (0.041 R)
• M10: 6,829,292 km (0.105 R)
• M11: 8,295,352 km (0.033 R)
• M12: 10,394,658 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.4

Radius: 12.5

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.7 AU - 2.52 AU

Year: 1979 Days

Day: 14.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 88.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,793,265 km

• M1: 156,629 km (0.111 R)
• M2: 612,005 km (0.065 R)
• M3: 1,161,478 km (0.062 R)
• M4: 2,102,897 km (0.11 R)
• M5: 2,968,770 km (0.092 R)
• M6: 3,825,367 km (0.095 R)
• M7: 4,861,183 km (0.071 R)
• M8: 5,535,720 km (0.039 R)
• M9: 6,051,383 km (0.05 R)
• M10: 9,160,925 km (0.079 R)
• M11: 9,550,926 km (0.088 R)
• M12: 10,054,174 km (0.033 R)
• M13: 13,330,666 km (0.082 R)
• M14: 14,347,034 km (0.116 R)
• M15: 14,918,797 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.1

Radius: 8.1

Gravity: 13.89 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 4.44 AU - 6.84 AU

Year: 8648 Days

Day: 9 Hours

Environment

Temp: -225 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,793,265 km

• M1: 100,829 km (0.106 R)
• M2: 388,655 km (0.112 R)
• M3: 689,347 km (0.045 R)
• M4: 989,291 km (0.073 R)
• M5: 1,509,443 km (0.098 R)
• M6: 1,816,717 km (0.101 R)
• M7: 2,291,540 km (0.053 R)
• M8: 2,825,605 km (0.116 R)
• M9: 3,111,037 km (0.091 R)
• M10: 3,367,598 km (0.088 R)
• M11: 4,168,245 km (0.082 R)
• M12: 4,658,178 km (0.112 R)
• M13: 5,153,796 km (0.05 R)
• M14: 7,494,853 km (0.094 R)
• M15: 10,158,892 km (0.088 R)
• M16: 11,425,687 km (0.071 R)
• M17: 12,326,865 km (0.116 R)
• M18: 14,016,423 km (0.115 R)
• M19: 14,590,879 km (0.088 R)
• M20: 16,199,505 km (0.046 R)
• M21: 17,046,677 km (0.117 R)
• M22: 18,221,769 km (0.118 R)
• M23: 20,406,496 km (0.066 R)
• M24: 23,642,896 km (0.046 R)
• M25: 24,274,349 km (0.113 R)
• M26: 25,009,622 km (0.109 R)
• M27: 26,524,600 km (0.107 R)
• M28: 29,840,586 km (0.045 R)
• M29: 31,004,757 km (0.079 R)
• M30: 32,088,893 km (0.109 R)
• M31: 43,815,122 km (0.114 R)
• M32: 47,279,210 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 498.3

Radius: 7.8

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.4 AU - 12.16 AU

Year: 22853 Days

Day: 20.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,793,265 km

• M1: 98,435 km (0.087 R)
• M2: 369,806 km (0.03 R)
• M3: 721,810 km (0.078 R)
• M4: 1,306,588 km (0.06 R)
• M5: 1,736,682 km (0.113 R)
• M6: 2,073,726 km (0.086 R)
• M7: 4,392,941 km (0.092 R)
• M8: 8,152,934 km (0.074 R)
• M9: 8,777,805 km (0.054 R)
• M10: 10,181,481 km (0.064 R)
• M11: 10,539,469 km (0.12 R)
• M12: 11,535,342 km (0.09 R)
• M13: 12,524,633 km (0.049 R)
• M14: 13,214,878 km (0.12 R)
• M15: 14,898,452 km (0.104 R)
• M16: 16,231,369 km (0.037 R)
• M17: 17,303,088 km (0.114 R)
• M18: 20,327,807 km (0.073 R)
• M19: 22,063,592 km (0.116 R)
• M20: 23,791,746 km (0.066 R)
• M21: 34,464,657 km (0.098 R)
• M22: 34,866,925 km (0.053 R)
• M23: 36,507,266 km (0.099 R)
• M24: 36,785,518 km (0.112 R)
• M25: 39,646,876 km (0.063 R)
• M26: 40,831,692 km (0.1 R)
• M27: 42,345,921 km (0.079 R)
• M28: 51,174,140 km (0.105 R)
• M29: 53,289,903 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: 525 - 18,134 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit