🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84

Radius: 9.3

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.78 AU - 1.02 AU

Year: 543 Days

Day: 11.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,998,864 km

• M1: 115,789 km (0.065 R)
• M2: 422,315 km (0.067 R)
• M3: 789,727 km (0.064 R)
• M4: 1,247,048 km (0.07 R)
• M5: 2,675,857 km (0.095 R)
• M6: 3,296,987 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.8

Radius: 8.9

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.99 AU - 1.35 AU

Year: 805 Days

Day: 6.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,998,864 km

• M1: 122,820 km (0.104 R)
• M2: 480,359 km (0.081 R)
• M3: 811,419 km (0.034 R)
• M4: 1,798,765 km (0.112 R)
• M5: 2,184,428 km (0.084 R)
• M6: 2,583,854 km (0.078 R)
• M7: 3,114,029 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.5

Radius: 10.7

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2 AU - 2.54 AU

Year: 2175 Days

Day: 10.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,998,864 km

• M1: 133,142 km (0.104 R)
• M2: 528,978 km (0.117 R)
• M3: 1,220,868 km (0.093 R)
• M4: 1,579,006 km (0.038 R)
• M5: 2,127,431 km (0.042 R)
• M6: 3,058,080 km (0.113 R)
• M7: 3,589,751 km (0.061 R)
• M8: 4,066,369 km (0.099 R)
• M9: 4,564,081 km (0.12 R)
• M10: 5,491,887 km (0.088 R)
• M11: 5,975,837 km (0.08 R)
• M12: 6,540,868 km (0.08 R)
• M13: 8,420,715 km (0.098 R)
• M14: 9,231,535 km (0.105 R)
• M15: 9,777,418 km (0.082 R)
• M16: 10,344,543 km (0.066 R)
• M17: 11,274,593 km (0.059 R)
• M18: 16,087,605 km (0.108 R)
• M19: 16,828,414 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.5

Radius: 8

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.29 AU - 2.81 AU

Year: 2589 Days

Day: 5.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,998,864 km

• M1: 102,325 km (0.112 R)
• M2: 382,821 km (0.085 R)
• M3: 749,785 km (0.117 R)
• M4: 1,002,306 km (0.056 R)
• M5: 2,121,896 km (0.084 R)
• M6: 2,377,858 km (0.087 R)
• M7: 2,693,958 km (0.057 R)
• M8: 3,066,607 km (0.048 R)
• M9: 3,552,650 km (0.118 R)
• M10: 4,177,521 km (0.064 R)
• M11: 6,025,204 km (0.064 R)
• M12: 6,351,327 km (0.06 R)
• M13: 6,912,768 km (0.077 R)
• M14: 7,721,195 km (0.077 R)
• M15: 9,808,384 km (0.035 R)
• M16: 10,658,699 km (0.111 R)
• M17: 11,592,937 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.4

Radius: 10.7

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.78 AU - 4.44 AU

Year: 5298 Days

Day: 8.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 173.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,998,864 km

• M1: 133,142 km (0.1 R)
• M2: 479,461 km (0.102 R)
• M3: 1,168,210 km (0.053 R)
• M4: 1,693,149 km (0.058 R)
• M5: 2,086,142 km (0.119 R)
• M6: 3,408,887 km (0.109 R)
• M7: 4,066,818 km (0.106 R)
• M8: 5,082,887 km (0.051 R)
• M9: 7,035,289 km (0.072 R)
• M10: 7,391,631 km (0.037 R)
• M11: 9,063,686 km (0.078 R)
• M12: 10,416,500 km (0.104 R)
• M13: 12,100,523 km (0.112 R)
• M14: 19,529,553 km (0.054 R)
• M15: 20,595,139 km (0.108 R)
• M16: 21,326,672 km (0.111 R)
• M17: 21,699,022 km (0.084 R)
• M18: 24,589,851 km (0.106 R)
• M19: 26,596,856 km (0.107 R)
• M20: 27,289,344 km (0.057 R)
• M21: 28,530,259 km (0.094 R)
• M22: 29,347,661 km (0.116 R)
• M23: 31,990,607 km (0.084 R)
• M24: 32,380,609 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.1

Radius: 8.6

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.4 AU - 5.98 AU

Year: 7518 Days

Day: 14.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,998,864 km

• M1: 106,962 km (0.09 R)
• M2: 795,262 km (0.074 R)
• M3: 1,112,859 km (0.119 R)
• M4: 1,630,916 km (0.076 R)
• M5: 2,844,005 km (0.069 R)
• M6: 4,007,129 km (0.109 R)
• M7: 4,681,665 km (0.092 R)
• M8: 5,075,257 km (0.116 R)
• M9: 5,706,860 km (0.104 R)
• M10: 6,090,728 km (0.076 R)
• M11: 8,893,294 km (0.075 R)
• M12: 13,944,766 km (0.084 R)
• M13: 14,760,822 km (0.077 R)
• M14: 15,732,011 km (0.077 R)
• M15: 16,296,743 km (0.11 R)
• M16: 18,277,120 km (0.085 R)
• M17: 19,900,257 km (0.104 R)
• M18: 21,235,867 km (0.071 R)
• M19: 27,537,976 km (0.072 R)
• M20: 29,100,675 km (0.036 R)
• M21: 30,624,779 km (0.069 R)
• M22: 35,944,928 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.6

Radius: 5.2

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.09 AU - 8.77 AU

Year: 15562 Days

Day: 24.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,998,864 km

• M1: 65,075 km (0.104 R)
• M2: 227,239 km (0.09 R)
• M3: 638,783 km (0.093 R)
• M4: 870,061 km (0.117 R)
• M5: 1,079,199 km (0.086 R)
• M6: 1,740,422 km (0.078 R)
• M7: 1,959,433 km (0.092 R)
• M8: 2,640,253 km (0.104 R)
• M9: 3,467,529 km (0.082 R)
• M10: 4,282,987 km (0.094 R)
• M11: 4,787,581 km (0.111 R)
• M12: 6,066,942 km (0.091 R)
• M13: 6,379,452 km (0.115 R)
• M14: 9,197,427 km (0.117 R)
• M15: 15,916,316 km (0.085 R)
• M16: 21,664,464 km (0.113 R)
• M17: 22,690,556 km (0.112 R)
• M18: 26,207,752 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440

Radius: 5.4

Gravity: 15.09 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 10.38 AU - 11.78 AU

Year: 23450 Days

Day: 23.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,998,864 km

• M1: 67,319 km (0.049 R)
• M2: 246,537 km (0.053 R)
• M3: 954,584 km (0.111 R)
• M4: 2,547,652 km (0.07 R)
• M5: 3,010,208 km (0.03 R)
• M6: 4,069,062 km (0.091 R)
• M7: 4,805,084 km (0.074 R)
• M8: 8,806,079 km (0.066 R)
• M9: 11,235,249 km (0.111 R)
• M10: 16,057,835 km (0.05 R)
• M11: 17,448,796 km (0.102 R)
• M12: 18,130,364 km (0.094 R)
• M13: 19,911,776 km (0.091 R)
• M14: 23,100,604 km (0.095 R)
• M15: 25,950,294 km (0.042 R)
• M16: 28,206,230 km (0.05 R)
• M17: 31,830,388 km (0.116 R)
• M18: 34,677,086 km (0.105 R)
• M19: 42,679,525 km (0.088 R)
• M20: 45,651,436 km (0.075 R)
• M21: 48,424,831 km (0.087 R)
• M22: 55,389,509 km (0.085 R)
• M23: 56,488,605 km (0.073 R)
• M24: 61,810,399 km (0.092 R)
• M25: 72,344,483 km (0.095 R)
• M26: 72,780,262 km (0.065 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 12,714 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit