🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.4

Radius: 9.3

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.55 AU - 0.67 AU

Year: 323 Days

Day: 8.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 42,147,547 km

• M1: 127,457 km (0.054 R)
• M2: 912,996 km (0.061 R)
• M3: 1,450,651 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.4

Radius: 14.4

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.55 AU - 0.87 AU

Year: 406 Days

Day: 10.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 42,147,547 km

• M1: 179,069 km (0.091 R)
• M2: 743,801 km (0.032 R)
• M3: 2,246,511 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.5

Radius: 9.9

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.85 AU - 0.89 AU

Year: 550 Days

Day: 11.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,147,547 km

• M1: 123,119 km (0.079 R)
• M2: 431,141 km (0.104 R)
• M3: 751,131 km (0.096 R)
• M4: 1,177,634 km (0.101 R)
• M5: 2,330,436 km (0.109 R)
• M6: 2,806,456 km (0.084 R)
• M7: 3,245,526 km (0.101 R)
• M8: 4,172,883 km (0.106 R)
• M9: 4,746,890 km (0.108 R)
• M10: 5,844,789 km (0.099 R)
• M11: 6,304,952 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.8

Radius: 12.5

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.77 AU - 1.21 AU

Year: 668 Days

Day: 8.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,147,547 km

• M1: 155,731 km (0.045 R)
• M2: 641,176 km (0.108 R)
• M3: 1,067,231 km (0.118 R)
• M4: 1,592,469 km (0.119 R)
• M5: 2,032,885 km (0.103 R)
• M6: 2,433,957 km (0.098 R)
• M7: 2,990,611 km (0.048 R)
• M8: 3,984,988 km (0.111 R)
• M9: 4,574,703 km (0.061 R)
• M10: 5,205,108 km (0.091 R)
• M11: 5,639,241 km (0.114 R)
• M12: 6,211,154 km (0.056 R)
• M13: 6,842,008 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.1

Radius: 9.4

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.91 AU - 1.35 AU

Year: 815 Days

Day: 7.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,147,547 km

• M1: 116,836 km (0.083 R)
• M2: 430,991 km (0.05 R)
• M3: 1,458,579 km (0.08 R)
• M4: 2,104,692 km (0.113 R)
• M5: 2,575,028 km (0.069 R)
• M6: 3,190,025 km (0.044 R)
• M7: 3,642,858 km (0.078 R)
• M8: 4,276,854 km (0.053 R)
• M9: 4,595,796 km (0.068 R)
• M10: 5,408,861 km (0.042 R)
• M11: 5,706,560 km (0.089 R)
• M12: 6,457,990 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.9

Radius: 9.4

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.05 AU - 1.45 AU

Year: 948 Days

Day: 12.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,147,547 km

• M1: 117,135 km (0.11 R)
• M2: 433,385 km (0.116 R)
• M3: 985,401 km (0.096 R)
• M4: 2,024,957 km (0.038 R)
• M5: 2,357,064 km (0.099 R)
• M6: 2,906,687 km (0.038 R)
• M7: 3,742,640 km (0.08 R)
• M8: 4,352,999 km (0.108 R)
• M9: 5,285,891 km (0.104 R)
• M10: 5,661,232 km (0.101 R)
• M11: 6,506,011 km (0.106 R)
• M12: 7,214,507 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.6

Radius: 11.3

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.03 AU - 1.65 AU

Year: 1052 Days

Day: 9.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,147,547 km

• M1: 140,622 km (0.064 R)
• M2: 501,452 km (0.106 R)
• M3: 917,633 km (0.119 R)
• M4: 1,354,908 km (0.088 R)
• M5: 2,008,351 km (0.058 R)
• M6: 2,666,732 km (0.071 R)
• M7: 3,040,726 km (0.093 R)
• M8: 4,069,062 km (0.115 R)
• M9: 5,032,921 km (0.118 R)
• M10: 5,608,723 km (0.06 R)
• M11: 6,335,470 km (0.08 R)
• M12: 6,961,238 km (0.113 R)
• M13: 9,395,793 km (0.103 R)
• M14: 9,826,486 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.2

Radius: 14.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.71 AU - 2.13 AU

Year: 1804 Days

Day: 9.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,147,547 km

• M1: 175,329 km (0.1 R)
• M2: 628,909 km (0.074 R)
• M3: 1,493,884 km (0.106 R)
• M4: 2,004,462 km (0.098 R)
• M5: 3,157,263 km (0.104 R)
• M6: 3,600,821 km (0.059 R)
• M7: 4,326,221 km (0.071 R)
• M8: 5,297,859 km (0.091 R)
• M9: 5,743,661 km (0.118 R)
• M10: 6,969,765 km (0.077 R)
• M11: 7,757,248 km (0.045 R)
• M12: 9,870,168 km (0.074 R)
• M13: 11,149,679 km (0.092 R)
• M14: 12,931,240 km (0.102 R)
• M15: 13,578,999 km (0.118 R)
• M16: 14,163,478 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.7

Radius: 6.5

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5 AU - 7.08 AU

Year: 10068 Days

Day: 17.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,147,547 km

• M1: 80,932 km (0.095 R)
• M2: 744,997 km (0.082 R)
• M3: 1,266,196 km (0.113 R)
• M4: 1,715,588 km (0.092 R)
• M5: 2,379,504 km (0.092 R)
• M6: 3,451,073 km (0.082 R)
• M7: 3,940,258 km (0.047 R)
• M8: 5,451,945 km (0.061 R)
• M9: 5,777,021 km (0.092 R)
• M10: 6,932,365 km (0.104 R)
• M11: 7,820,378 km (0.065 R)
• M12: 9,437,382 km (0.038 R)
• M13: 10,845,247 km (0.096 R)
• M14: 14,291,533 km (0.097 R)
• M15: 18,273,530 km (0.084 R)
• M16: 22,709,854 km (0.084 R)
• M17: 23,320,064 km (0.095 R)
• M18: 28,249,613 km (0.03 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 87.2

Radius: 5.4

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 8.09 AU - 12.93 AU

Year: 23110 Days

Day: 23.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,147,547 km

• M1: 67,169 km (0.091 R)
• M2: 552,914 km (0.115 R)
• M3: 981,063 km (0.048 R)
• M4: 1,369,868 km (0.108 R)
• M5: 2,601,956 km (0.075 R)
• M6: 3,053,143 km (0.112 R)
• M7: 4,352,999 km (0.09 R)
• M8: 5,781,509 km (0.093 R)
• M9: 12,836,993 km (0.075 R)
• M10: 22,265,100 km (0.043 R)
• M11: 24,830,703 km (0.09 R)
• M12: 28,354,481 km (0.118 R)
• M13: 29,632,645 km (0.085 R)
• M14: 33,914,884 km (0.081 R)
• M15: 34,574,162 km (0.093 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: 225 - 18,135 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit