🌌 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: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.3

Radius: 8.8

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.58 AU - 0.9 AU

Year: 411 Days

Day: 8.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,450,490 km

• M1: 109,506 km (0.03 R)
• M2: 428,448 km (0.072 R)
• M3: 774,468 km (0.095 R)
• M4: 1,198,877 km (0.088 R)
• M5: 1,477,877 km (0.114 R)
• M6: 1,890,468 km (0.057 R)
• M7: 2,233,347 km (0.1 R)
• M8: 2,617,664 km (0.107 R)
• M9: 3,006,768 km (0.118 R)
• M10: 3,541,580 km (0.111 R)
• M11: 3,889,844 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 10.8

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.87 AU - 1.07 AU

Year: 617 Days

Day: 8.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,450,490 km

• M1: 134,339 km (0.109 R)
• M2: 480,209 km (0.076 R)
• M3: 872,156 km (0.054 R)
• M4: 1,228,797 km (0.036 R)
• M5: 2,022,114 km (0.114 R)
• M6: 3,631,040 km (0.043 R)
• M7: 5,556,364 km (0.105 R)
• M8: 6,353,122 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.8

Radius: 13

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.07 AU - 1.59 AU

Year: 990 Days

Day: 13.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,450,490 km

• M1: 164,109 km (0.091 R)
• M2: 747,541 km (0.07 R)
• M3: 1,501,663 km (0.095 R)
• M4: 2,260,723 km (0.116 R)
• M5: 2,835,628 km (0.092 R)
• M6: 3,262,730 km (0.034 R)
• M7: 3,779,441 km (0.112 R)
• M8: 4,848,467 km (0.089 R)
• M9: 5,404,223 km (0.115 R)
• M10: 6,328,588 km (0.055 R)
• M11: 7,306,809 km (0.12 R)
• M12: 8,599,783 km (0.073 R)
• M13: 10,408,721 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629

Radius: 10.3

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.83 AU - 2.11 AU

Year: 1785 Days

Day: 10.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,450,490 km

• M1: 129,253 km (0.07 R)
• M2: 500,255 km (0.081 R)
• M3: 1,471,445 km (0.102 R)
• M4: 1,872,068 km (0.08 R)
• M5: 2,259,227 km (0.1 R)
• M6: 3,386,896 km (0.12 R)
• M7: 4,752,874 km (0.104 R)
• M8: 5,990,198 km (0.031 R)
• M9: 6,581,708 km (0.055 R)
• M10: 6,997,291 km (0.05 R)
• M11: 8,653,339 km (0.091 R)
• M12: 9,377,393 km (0.069 R)
• M13: 9,904,576 km (0.081 R)
• M14: 10,278,421 km (0.114 R)
• M15: 10,626,386 km (0.108 R)
• M16: 11,419,703 km (0.101 R)
• M17: 13,003,047 km (0.103 R)
• M18: 14,596,713 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.3

Radius: 8.5

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.89 AU - 3.97 AU

Year: 4102 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,450,490 km

• M1: 106,214 km (0.114 R)
• M2: 450,589 km (0.075 R)
• M3: 1,132,306 km (0.069 R)
• M4: 1,460,524 km (0.113 R)
• M5: 1,915,302 km (0.11 R)
• M6: 5,790,934 km (0.094 R)
• M7: 8,283,384 km (0.056 R)
• M8: 10,526,903 km (0.1 R)
• M9: 11,371,533 km (0.045 R)
• M10: 11,810,303 km (0.106 R)
• M11: 13,533,222 km (0.058 R)
• M12: 14,480,027 km (0.056 R)
• M13: 20,267,370 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.8

Radius: 8.7

Gravity: 11.29 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.76 AU - 4.52 AU

Year: 4484 Days

Day: 10.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,450,490 km

• M1: 108,159 km (0.1 R)
• M2: 399,277 km (0.111 R)
• M3: 681,568 km (0.101 R)
• M4: 971,339 km (0.076 R)
• M5: 1,302,698 km (0.105 R)
• M6: 1,646,474 km (0.105 R)
• M7: 2,503,221 km (0.097 R)
• M8: 3,544,871 km (0.056 R)
• M9: 7,287,660 km (0.061 R)
• M10: 7,894,429 km (0.087 R)
• M11: 9,664,022 km (0.107 R)
• M12: 10,004,208 km (0.096 R)
• M13: 10,485,016 km (0.101 R)
• M14: 12,816,798 km (0.052 R)
• M15: 16,176,616 km (0.103 R)
• M16: 16,475,662 km (0.098 R)
• M17: 17,457,473 km (0.1 R)
• M18: 20,847,510 km (0.067 R)
• M19: 22,584,940 km (0.087 R)
• M20: 24,889,944 km (0.112 R)
• M21: 29,337,489 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.5

Radius: 12.5

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.67 AU - 5.23 AU

Year: 6061 Days

Day: 11.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,450,490 km

• M1: 155,731 km (0.107 R)
• M2: 569,070 km (0.086 R)
• M3: 1,021,155 km (0.106 R)
• M4: 1,658,592 km (0.111 R)
• M5: 2,635,166 km (0.12 R)
• M6: 3,464,088 km (0.047 R)
• M7: 3,962,997 km (0.106 R)
• M8: 4,534,311 km (0.116 R)
• M9: 7,707,881 km (0.104 R)
• M10: 11,793,997 km (0.056 R)
• M11: 12,476,612 km (0.096 R)
• M12: 13,814,017 km (0.088 R)
• M13: 14,627,829 km (0.108 R)
• M14: 15,704,336 km (0.061 R)
• M15: 17,698,625 km (0.09 R)
• M16: 19,384,892 km (0.095 R)
• M17: 21,317,846 km (0.099 R)
• M18: 23,910,976 km (0.11 R)
• M19: 26,790,735 km (0.112 R)
• M20: 28,747,176 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.2

Radius: 13.3

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.19 AU - 6.37 AU

Year: 7834 Days

Day: 12.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,450,490 km

• M1: 165,754 km (0.072 R)
• M2: 643,420 km (0.084 R)
• M3: 1,234,332 km (0.085 R)
• M4: 2,064,151 km (0.068 R)
• M5: 2,936,307 km (0.082 R)
• M6: 3,517,196 km (0.08 R)
• M7: 4,200,858 km (0.063 R)
• M8: 5,093,658 km (0.078 R)
• M9: 5,667,964 km (0.096 R)
• M10: 8,540,542 km (0.089 R)
• M11: 15,032,043 km (0.116 R)
• M12: 17,392,996 km (0.119 R)
• M13: 18,699,135 km (0.111 R)
• M14: 19,991,661 km (0.079 R)
• M15: 24,227,226 km (0.098 R)
• M16: 24,941,855 km (0.061 R)
• M17: 26,979,826 km (0.111 R)
• M18: 33,647,553 km (0.119 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 495 - 20,424 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit