🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.9

Radius: 10.5

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.81 AU - 0.83 AU

Year: 479 Days

Day: 14.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,330,412 km

• M1: 130,599 km (0.118 R)
• M2: 523,593 km (0.051 R)
• M3: 885,021 km (0.094 R)
• M4: 1,262,008 km (0.109 R)
• M5: 1,945,520 km (0.079 R)
• M6: 2,363,497 km (0.102 R)
• M7: 2,718,193 km (0.076 R)
• M8: 3,160,105 km (0.108 R)
• M9: 3,514,353 km (0.119 R)
• M10: 4,139,223 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.4

Radius: 9

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.67 AU - 0.97 AU

Year: 479 Days

Day: 12.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,330,412 km

• M1: 111,899 km (0.044 R)
• M2: 398,978 km (0.1 R)
• M3: 796,010 km (0.114 R)
• M4: 1,212,640 km (0.101 R)
• M5: 1,547,590 km (0.101 R)
• M6: 1,887,626 km (0.092 R)
• M7: 2,535,235 km (0.062 R)
• M8: 2,887,389 km (0.028 R)
• M9: 3,170,278 km (0.082 R)
• M10: 3,954,321 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.6

Radius: 8.8

Gravity: 12.6 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.89 AU - 1.27 AU

Year: 725 Days

Day: 7.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 18,330,412 km

• M1: 109,506 km (0.099 R)
• M2: 523,892 km (0.097 R)
• M3: 820,694 km (0.083 R)
• M4: 1,412,054 km (0.116 R)
• M5: 2,140,746 km (0.108 R)
• M6: 2,526,708 km (0.072 R)
• M7: 3,166,239 km (0.032 R)
• M8: 3,596,333 km (0.106 R)
• M9: 4,608,213 km (0.085 R)
• M10: 5,051,322 km (0.05 R)
• M11: 5,406,766 km (0.101 R)
• M12: 6,773,642 km (0.115 R)
• M13: 7,090,939 km (0.096 R)
• M14: 7,418,259 km (0.113 R)
• M15: 7,731,068 km (0.099 R)
• M16: 8,357,584 km (0.05 R)
• M17: 8,829,266 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.4

Radius: 10.1

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.29 AU - 1.35 AU

Year: 979 Days

Day: 13.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 18,330,412 km

• M1: 125,662 km (0.091 R)
• M2: 516,262 km (0.091 R)
• M3: 831,315 km (0.097 R)
• M4: 1,204,412 km (0.068 R)
• M5: 1,612,067 km (0.101 R)
• M6: 1,989,652 km (0.073 R)
• M7: 2,336,420 km (0.111 R)
• M8: 2,674,511 km (0.116 R)
• M9: 3,407,092 km (0.062 R)
• M10: 4,268,177 km (0.118 R)
• M11: 4,741,056 km (0.103 R)
• M12: 5,465,558 km (0.094 R)
• M13: 6,109,876 km (0.108 R)
• M14: 6,439,291 km (0.082 R)
• M15: 7,852,841 km (0.113 R)
• M16: 9,147,162 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.3

Radius: 8.6

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.8 AU - 3.08 AU

Year: 3255 Days

Day: 11.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,330,412 km

• M1: 106,962 km (0.045 R)
• M2: 459,265 km (0.039 R)
• M3: 994,377 km (0.093 R)
• M4: 2,094,819 km (0.099 R)
• M5: 2,696,053 km (0.119 R)
• M6: 3,196,757 km (0.064 R)
• M7: 4,439,018 km (0.069 R)
• M8: 5,365,926 km (0.055 R)
• M9: 5,731,244 km (0.108 R)
• M10: 6,368,980 km (0.071 R)
• M11: 7,154,967 km (0.119 R)
• M12: 7,465,981 km (0.033 R)
• M13: 8,742,350 km (0.092 R)
• M14: 11,229,714 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.4

Radius: 9.3

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.29 AU - 3.57 AU

Year: 4102 Days

Day: 8 Hours

Environment

Temp: -206 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 18,330,412 km

• M1: 116,238 km (0.089 R)
• M2: 427,252 km (0.04 R)
• M3: 771,027 km (0.084 R)
• M4: 1,214,585 km (0.083 R)
• M5: 1,506,899 km (0.055 R)
• M6: 2,700,092 km (0.109 R)
• M7: 4,652,793 km (0.076 R)
• M8: 5,685,018 km (0.104 R)
• M9: 6,296,425 km (0.118 R)
• M10: 7,159,156 km (0.119 R)
• M11: 7,840,275 km (0.073 R)
• M12: 8,942,213 km (0.12 R)
• M13: 10,764,464 km (0.111 R)
• M14: 12,209,131 km (0.085 R)
• M15: 15,478,742 km (0.077 R)
• M16: 16,040,781 km (0.113 R)
• M17: 16,405,501 km (0.073 R)
• M18: 19,407,631 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.8

Radius: 10.2

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.69 AU - 3.85 AU

Year: 4726 Days

Day: 13.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,330,412 km

• M1: 126,859 km (0.091 R)
• M2: 488,287 km (0.092 R)
• M3: 1,146,368 km (0.069 R)
• M4: 2,055,325 km (0.069 R)
• M5: 3,340,221 km (0.068 R)
• M6: 5,670,507 km (0.08 R)
• M7: 6,660,845 km (0.116 R)
• M8: 8,224,143 km (0.102 R)
• M9: 10,393,162 km (0.044 R)
• M10: 11,721,292 km (0.116 R)
• M11: 12,368,154 km (0.097 R)
• M12: 14,110,670 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.4

Radius: 9.3

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 4.32 AU - 6.78 AU

Year: 8442 Days

Day: 9.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,330,412 km

• M1: 117,434 km (0.09 R)
• M2: 517,758 km (0.086 R)
• M3: 1,002,455 km (0.107 R)
• M4: 1,392,307 km (0.07 R)
• M5: 1,733,241 km (0.041 R)
• M6: 4,411,641 km (0.069 R)
• M7: 5,241,760 km (0.083 R)
• M8: 5,769,691 km (0.106 R)
• M9: 6,561,213 km (0.095 R)
• M10: 8,166,099 km (0.106 R)
• M11: 11,445,135 km (0.103 R)
• M12: 14,304,548 km (0.097 R)
• M13: 16,848,311 km (0.118 R)
• M14: 17,416,483 km (0.037 R)
• M15: 23,742,977 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.1

Radius: 3.5

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.62 AU - 10.72 AU

Year: 16483 Days

Day: 20.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,330,412 km

• M1: 55,501 km (0.107 R)
• M2: 372,349 km (0.034 R)
• M3: 1,240,466 km (0.078 R)
• M4: 1,417,739 km (0.105 R)
• M5: 1,766,152 km (0.085 R)
• M6: 2,116,959 km (0.078 R)
• M7: 4,133,389 km (0.113 R)
• M8: 5,998,875 km (0.12 R)
• M9: 8,327,216 km (0.082 R)
• M10: 9,093,905 km (0.118 R)
• M11: 9,336,403 km (0.116 R)
• M12: 9,654,299 km (0.056 R)
• M13: 10,689,815 km (0.064 R)
• M14: 11,116,169 km (0.102 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 15,087 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit