🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.8

Radius: 15

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.52 AU - 0.6 AU

Year: 279 Days

Day: 7.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,553,133 km

• M1: 186,549 km (0.029 R)
• M2: 681,269 km (0.1 R)
• M3: 1,185,862 km (0.062 R)
• M4: 1,832,275 km (0.118 R)
• M5: 2,320,861 km (0.111 R)
• M6: 2,945,881 km (0.097 R)
• M7: 3,438,507 km (0.114 R)
• M8: 4,157,026 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.3

Radius: 13.3

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.55 AU - 0.59 AU

Year: 287 Days

Day: 13.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,553,133 km

• M1: 165,455 km (0.106 R)
• M2: 695,331 km (0.045 R)
• M3: 1,151,305 km (0.093 R)
• M4: 1,682,078 km (0.067 R)
• M5: 2,113,968 km (0.073 R)
• M6: 2,722,532 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 13.7

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.7 AU - 0.9 AU

Year: 477 Days

Day: 13.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,553,133 km

• M1: 170,392 km (0.088 R)
• M2: 930,798 km (0.04 R)
• M3: 1,400,834 km (0.104 R)
• M4: 1,975,589 km (0.112 R)
• M5: 2,615,569 km (0.11 R)
• M6: 3,057,332 km (0.084 R)
• M7: 4,561,089 km (0.104 R)
• M8: 5,032,173 km (0.091 R)
• M9: 5,637,147 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.1

Radius: 14.4

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.35 AU - 1.87 AU

Year: 1362 Days

Day: 9.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,553,133 km

• M1: 179,517 km (0.08 R)
• M2: 690,843 km (0.09 R)
• M3: 1,443,470 km (0.041 R)
• M4: 2,719,689 km (0.106 R)
• M5: 3,707,783 km (0.119 R)
• M6: 4,779,802 km (0.037 R)

Asteroid Belt

Center: 2.03 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.3

Radius: 14.6

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.91 AU - 2.97 AU

Year: 2542 Days

Day: 5.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,553,133 km

• M1: 181,612 km (0.1 R)
• M2: 644,019 km (0.114 R)
• M3: 1,389,016 km (0.103 R)
• M4: 1,934,151 km (0.065 R)
• M5: 2,663,291 km (0.096 R)
• M6: 3,554,296 km (0.109 R)
• M7: 4,079,534 km (0.11 R)
• M8: 4,737,615 km (0.082 R)
• M9: 5,200,620 km (0.11 R)
• M10: 5,904,628 km (0.114 R)
• M11: 6,749,407 km (0.057 R)
• M12: 7,588,651 km (0.081 R)
• M13: 8,649,599 km (0.096 R)
• M14: 9,773,678 km (0.037 R)
• M15: 10,956,847 km (0.035 R)
• M16: 13,152,196 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.2

Radius: 11

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.19 AU - 5.17 AU

Year: 5699 Days

Day: 13.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,553,133 km

• M1: 137,331 km (0.099 R)
• M2: 487,240 km (0.098 R)
• M3: 2,210,458 km (0.052 R)
• M4: 2,922,095 km (0.096 R)
• M5: 3,342,166 km (0.105 R)
• M6: 4,280,893 km (0.116 R)
• M7: 5,222,312 km (0.104 R)
• M8: 8,156,973 km (0.074 R)
• M9: 8,531,118 km (0.099 R)
• M10: 18,393,507 km (0.087 R)
• M11: 18,778,722 km (0.096 R)
• M12: 19,966,977 km (0.065 R)
• M13: 20,648,246 km (0.095 R)
• M14: 25,145,308 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.7

Radius: 4.9

Gravity: 31.72 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 7.88 AU - 9.62 AU

Year: 17260 Days

Day: 16.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,553,133 km

• M1: 64,327 km (0.103 R)
• M2: 301,889 km (0.092 R)
• M3: 505,641 km (0.058 R)
• M4: 907,161 km (0.064 R)
• M5: 1,085,333 km (0.039 R)
• M6: 1,244,804 km (0.113 R)
• M7: 1,404,574 km (0.102 R)
• M8: 1,731,147 km (0.108 R)
• M9: 2,229,307 km (0.112 R)
• M10: 2,400,298 km (0.088 R)
• M11: 2,744,971 km (0.107 R)
• M12: 3,532,604 km (0.108 R)
• M13: 3,706,586 km (0.086 R)
• M14: 4,009,373 km (0.041 R)
• M15: 4,630,054 km (0.097 R)
• M16: 6,566,599 km (0.107 R)
• M17: 7,285,566 km (0.088 R)
• M18: 8,511,820 km (0.113 R)
• M19: 9,587,129 km (0.059 R)
• M20: 11,428,081 km (0.119 R)
• M21: 11,681,649 km (0.11 R)
• M22: 12,598,684 km (0.084 R)
• M23: 14,427,368 km (0.074 R)
• M24: 16,748,678 km (0.118 R)
• M25: 17,574,608 km (0.084 R)
• M26: 18,340,998 km (0.114 R)
• M27: 18,688,514 km (0.078 R)
• M28: 19,486,768 km (0.119 R)
• M29: 20,867,257 km (0.112 R)
• M30: 31,031,086 km (0.101 R)
• M31: 32,274,693 km (0.104 R)
• M32: 32,781,381 km (0.074 R)
• M33: 35,126,926 km (0.077 R)
• M34: 35,797,873 km (0.12 R)
• M35: 45,154,771 km (0.116 R)
• M36: 49,883,560 km (0.098 R)
• M37: 50,560,640 km (0.115 R)
• M38: 51,243,703 km (0.12 R)
• M39: 58,981,055 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 570

Radius: 3.1

Gravity: 59.31 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 10.47 AU - 11.53 AU

Year: 24329 Days

Day: 20.9 Hours

Environment

Temp: -243 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,553,133 km

• M1: 38,596 km (0.118 R)
• M2: 239,057 km (0.101 R)
• M3: 347,965 km (0.092 R)
• M4: 860,038 km (0.112 R)
• M5: 1,165,367 km (0.062 R)
• M6: 1,312,273 km (0.079 R)
• M7: 2,586,398 km (0.105 R)
• M8: 3,075,732 km (0.077 R)
• M9: 4,690,342 km (0.079 R)
• M10: 4,836,798 km (0.089 R)
• M11: 5,413,498 km (0.103 R)
• M12: 6,251,994 km (0.038 R)
• M13: 6,564,803 km (0.09 R)
• M14: 6,702,134 km (0.083 R)
• M15: 10,536,627 km (0.091 R)
• M16: 11,043,464 km (0.114 R)
• M17: 12,174,125 km (0.083 R)
• M18: 13,823,741 km (0.069 R)
• M19: 14,201,027 km (0.112 R)
• M20: 15,055,231 km (0.073 R)
• M21: 20,421,007 km (0.059 R)
• M22: 21,608,066 km (0.098 R)
• M23: 22,115,951 km (0.072 R)
• M24: 24,445,489 km (0.09 R)
• M25: 33,204,295 km (0.114 R)
• M26: 35,119,895 km (0.105 R)
• M27: 35,821,509 km (0.065 R)
• M28: 36,246,966 km (0.115 R)
• M29: 36,819,327 km (0.03 R)
• M30: 42,087,865 km (0.076 R)
• M31: 48,872,128 km (0.1 R)
• M32: 49,922,156 km (0.102 R)
• M33: 53,531,204 km (0.105 R)
• M34: 78,415,165 km (0.193 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 557 - 16,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit