🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.4

Radius: 13

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.88 AU - 0.9 AU

Year: 580 Days

Day: 8 Hours

Environment

Temp: -170 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 36,826,373 km

• M1: 161,715 km (0.102 R)
• M2: 668,403 km (0.049 R)
• M3: 1,786,797 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.3

Radius: 13.3

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.4 AU - 1.58 AU

Year: 1255 Days

Day: 9.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 165.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,826,373 km

• M1: 165,455 km (0.051 R)
• M2: 673,340 km (0.105 R)
• M3: 1,208,751 km (0.046 R)
• M4: 1,828,385 km (0.109 R)
• M5: 2,245,614 km (0.111 R)
• M6: 2,890,380 km (0.12 R)
• M7: 3,611,293 km (0.102 R)
• M8: 4,841,137 km (0.113 R)
• M9: 6,137,253 km (0.092 R)
• M10: 7,728,525 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.2

Radius: 11.9

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.95 AU - 2.19 AU

Year: 2056 Days

Day: 11.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,826,373 km

• M1: 169,046 km (0.118 R)
• M2: 555,457 km (0.089 R)
• M3: 1,031,777 km (0.099 R)
• M4: 1,492,089 km (0.107 R)
• M5: 1,958,386 km (0.064 R)
• M6: 3,423,248 km (0.078 R)
• M7: 3,870,845 km (0.109 R)
• M8: 4,245,887 km (0.114 R)
• M9: 4,625,566 km (0.068 R)
• M10: 5,028,134 km (0.093 R)
• M11: 5,476,030 km (0.059 R)
• M12: 5,904,179 km (0.069 R)
• M13: 7,218,396 km (0.055 R)
• M14: 8,130,046 km (0.06 R)
• M15: 8,509,576 km (0.05 R)
• M16: 9,179,026 km (0.115 R)
• M17: 9,817,809 km (0.077 R)
• M18: 13,065,878 km (0.055 R)
• M19: 13,833,614 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577

Radius: 8.4

Gravity: 8.18 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.26 AU - 3.16 AU

Year: 3079 Days

Day: 8.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,826,373 km

• M1: 104,419 km (0.106 R)
• M2: 413,937 km (0.11 R)
• M3: 681,418 km (0.082 R)
• M4: 1,062,743 km (0.035 R)
• M5: 1,615,208 km (0.078 R)
• M6: 1,914,404 km (0.091 R)
• M7: 2,447,571 km (0.113 R)
• M8: 4,518,604 km (0.051 R)
• M9: 5,590,024 km (0.115 R)
• M10: 6,590,983 km (0.098 R)
• M11: 8,873,547 km (0.083 R)
• M12: 9,554,218 km (0.056 R)
• M13: 9,888,569 km (0.069 R)
• M14: 11,346,101 km (0.095 R)
• M15: 12,191,030 km (0.116 R)
• M16: 14,632,317 km (0.03 R)
• M17: 15,941,598 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475

Radius: 10.6

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.41 AU - 3.13 AU

Year: 3182 Days

Day: 9.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,826,373 km

• M1: 131,796 km (0.086 R)
• M2: 485,146 km (0.12 R)
• M3: 945,459 km (0.092 R)
• M4: 1,324,091 km (0.116 R)
• M5: 2,237,087 km (0.084 R)
• M6: 2,631,726 km (0.097 R)
• M7: 3,072,890 km (0.053 R)
• M8: 3,964,493 km (0.101 R)
• M9: 4,568,569 km (0.03 R)
• M10: 5,209,147 km (0.116 R)
• M11: 5,882,487 km (0.074 R)
• M12: 6,335,619 km (0.092 R)
• M13: 7,312,045 km (0.069 R)
• M14: 10,264,807 km (0.08 R)
• M15: 12,195,368 km (0.063 R)
• M16: 16,867,459 km (0.059 R)
• M17: 17,240,855 km (0.07 R)
• M18: 17,894,000 km (0.072 R)
• M19: 18,282,505 km (0.119 R)
• M20: 19,076,571 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.9

Radius: 11.5

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.55 AU - 3.87 AU

Year: 3970 Days

Day: 8.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,826,373 km

• M1: 178,321 km (0.089 R)
• M2: 570,117 km (0.101 R)
• M3: 1,788,143 km (0.082 R)
• M4: 3,807,864 km (0.089 R)
• M5: 5,252,830 km (0.078 R)
• M6: 6,628,682 km (0.117 R)
• M7: 7,719,849 km (0.083 R)
• M8: 9,189,797 km (0.116 R)
• M9: 10,727,514 km (0.058 R)
• M10: 11,213,108 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.5

Radius: 6.5

Gravity: 13.72 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.55 AU - 7.65 AU

Year: 11704 Days

Day: 20.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 36,826,373 km

• M1: 80,783 km (0.075 R)
• M2: 638,334 km (0.108 R)
• M3: 1,232,238 km (0.12 R)
• M4: 1,451,698 km (0.092 R)
• M5: 1,682,078 km (0.104 R)
• M6: 2,144,934 km (0.041 R)
• M7: 3,249,864 km (0.08 R)
• M8: 3,912,433 km (0.087 R)
• M9: 4,570,365 km (0.097 R)
• M10: 5,780,013 km (0.102 R)
• M11: 6,140,544 km (0.03 R)
• M12: 7,189,524 km (0.108 R)
• M13: 8,217,860 km (0.099 R)
• M14: 8,443,902 km (0.117 R)
• M15: 9,243,503 km (0.115 R)
• M16: 10,722,577 km (0.028 R)
• M17: 12,530,318 km (0.119 R)
• M18: 13,694,937 km (0.095 R)
• M19: 15,608,743 km (0.074 R)
• M20: 16,665,652 km (0.046 R)
• M21: 17,396,138 km (0.077 R)
• M22: 22,761,765 km (0.037 R)
• M23: 23,118,406 km (0.066 R)
• M24: 26,010,582 km (0.075 R)
• M25: 29,239,801 km (0.104 R)
• M26: 32,953,419 km (0.078 R)
• M27: 33,870,753 km (0.065 R)
• M28: 34,452,689 km (0.106 R)
• M29: 37,338,881 km (0.094 R)
• M30: 41,036,641 km (0.085 R)
• M31: 42,366,267 km (0.03 R)
• M32: 43,999,427 km (0.075 R)
• M33: 44,414,112 km (0.032 R)
• M34: 47,681,030 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 159.6

Radius: 5.8

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 5.82 AU - 9.02 AU

Year: 13951 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 36,826,373 km

• M1: 81,830 km (0.034 R)
• M2: 388,805 km (0.1 R)
• M3: 646,412 km (0.072 R)
• M4: 1,125,275 km (0.041 R)
• M5: 1,322,296 km (0.087 R)
• M6: 2,661,346 km (0.092 R)
• M7: 4,061,133 km (0.115 R)
• M8: 6,220,579 km (0.102 R)
• M9: 7,544,221 km (0.117 R)
• M10: 8,211,128 km (0.044 R)
• M11: 8,789,324 km (0.096 R)
• M12: 9,617,049 km (0.112 R)
• M13: 9,888,868 km (0.098 R)
• M14: 11,176,008 km (0.085 R)
• M15: 11,833,940 km (0.103 R)
• M16: 12,357,383 km (0.1 R)
• M17: 14,429,014 km (0.11 R)
• M18: 15,515,842 km (0.087 R)
• M19: 17,048,473 km (0.095 R)
• M20: 17,581,041 km (0.088 R)
• M21: 20,411,433 km (0.12 R)
• M22: 26,598,950 km (0.091 R)
• M23: 26,865,982 km (0.095 R)
• M24: 27,677,850 km (0.071 R)
• M25: 28,598,924 km (0.105 R)
• M26: 36,168,726 km (0.065 R)
• M27: 36,496,645 km (0.093 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: 313 - 17,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit