🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 15

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.43 AU - 0.67 AU

Year: 277 Days

Day: 12.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 171.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 64,846,486 km

• M1: 186,549 km (0.092 R)
• M2: 698,921 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.4

Radius: 12

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.56 AU - 0.78 AU

Year: 372 Days

Day: 6.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,846,486 km

• M1: 149,299 km (0.1 R)
• M2: 530,923 km (0.029 R)
• M3: 1,069,026 km (0.1 R)
• M4: 1,541,307 km (0.095 R)
• M5: 2,044,105 km (0.08 R)
• M6: 2,529,850 km (0.094 R)
• M7: 3,433,122 km (0.083 R)
• M8: 3,953,273 km (0.079 R)
• M9: 4,655,486 km (0.111 R)
• M10: 5,247,145 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.7

Radius: 14.7

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.31 AU - 2.18 AU

Year: 1557 Days

Day: 13 Hours

Environment

Temp: -200 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,846,486 km

• M1: 203,004 km (0.097 R)
• M2: 680,371 km (0.094 R)
• M3: 1,184,366 km (0.097 R)
• M4: 1,836,912 km (0.119 R)
• M5: 2,301,414 km (0.067 R)
• M6: 3,336,481 km (0.089 R)
• M7: 3,952,675 km (0.1 R)
• M8: 4,644,266 km (0.12 R)
• M9: 5,288,434 km (0.12 R)
• M10: 5,900,439 km (0.117 R)
• M11: 6,438,244 km (0.107 R)
• M12: 7,346,303 km (0.041 R)
• M13: 8,252,118 km (0.112 R)
• M14: 9,262,203 km (0.101 R)
• M15: 11,456,654 km (0.078 R)
• M16: 12,259,994 km (0.076 R)
• M17: 13,218,019 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.6

Radius: 13.9

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.27 AU - 3.01 AU

Year: 2909 Days

Day: 7.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,846,486 km

• M1: 175,927 km (0.115 R)
• M2: 622,626 km (0.103 R)
• M3: 1,076,656 km (0.068 R)
• M4: 1,574,368 km (0.026 R)
• M5: 2,024,059 km (0.073 R)
• M6: 2,774,143 km (0.103 R)
• M7: 4,195,771 km (0.118 R)
• M8: 5,099,791 km (0.045 R)
• M9: 5,734,086 km (0.11 R)
• M10: 7,958,607 km (0.093 R)
• M11: 9,060,844 km (0.111 R)
• M12: 10,027,246 km (0.093 R)
• M13: 10,674,257 km (0.103 R)
• M14: 11,715,308 km (0.078 R)
• M15: 14,251,441 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.5

Radius: 12.9

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.24 AU - 3.16 AU

Year: 3009 Days

Day: 10.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,846,486 km

• M1: 160,668 km (0.094 R)
• M2: 579,093 km (0.114 R)
• M3: 1,167,312 km (0.032 R)
• M4: 1,634,207 km (0.118 R)
• M5: 2,116,660 km (0.102 R)
• M6: 3,012,752 km (0.098 R)
• M7: 4,414,932 km (0.084 R)
• M8: 6,388,876 km (0.071 R)
• M9: 6,808,648 km (0.111 R)
• M10: 7,538,536 km (0.053 R)
• M11: 10,906,283 km (0.067 R)
• M12: 12,313,850 km (0.117 R)
• M13: 15,810,401 km (0.08 R)
• M14: 19,794,192 km (0.088 R)
• M15: 22,770,890 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943

Radius: 12.1

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.87 AU - 6.37 AU

Year: 7858 Days

Day: 12.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,846,486 km

• M1: 152,291 km (0.064 R)
• M2: 849,118 km (0.11 R)
• M3: 1,265,598 km (0.104 R)
• M4: 2,090,780 km (0.065 R)
• M5: 2,517,882 km (0.112 R)
• M6: 3,600,073 km (0.077 R)
• M7: 4,329,512 km (0.111 R)
• M8: 7,197,602 km (0.084 R)
• M9: 9,210,591 km (0.1 R)
• M10: 9,925,520 km (0.084 R)
• M11: 11,305,410 km (0.091 R)
• M12: 11,683,145 km (0.055 R)
• M13: 12,867,511 km (0.101 R)
• M14: 14,379,946 km (0.059 R)
• M15: 14,952,457 km (0.093 R)
• M16: 15,606,349 km (0.097 R)
• M17: 23,934,463 km (0.07 R)
• M18: 26,877,352 km (0.105 R)
• M19: 28,934,921 km (0.113 R)
• M20: 36,434,113 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 808.6

Radius: 6.4

Gravity: 19.74 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.5 AU - 8.24 AU

Year: 12213 Days

Day: 18.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 64,846,486 km

• M1: 79,586 km (0.087 R)
• M2: 400,174 km (0.08 R)
• M3: 1,308,084 km (0.117 R)
• M4: 3,127,643 km (0.113 R)
• M5: 4,392,642 km (0.111 R)
• M6: 5,173,094 km (0.086 R)
• M7: 5,524,201 km (0.079 R)
• M8: 5,928,713 km (0.091 R)
• M9: 6,471,903 km (0.086 R)
• M10: 6,838,268 km (0.082 R)
• M11: 8,160,115 km (0.116 R)
• M12: 8,881,177 km (0.096 R)
• M13: 10,449,411 km (0.043 R)
• M14: 12,378,177 km (0.104 R)
• M15: 13,070,665 km (0.086 R)
• M16: 14,191,153 km (0.066 R)
• M17: 15,734,405 km (0.076 R)
• M18: 16,848,610 km (0.117 R)
• M19: 17,777,164 km (0.11 R)
• M20: 18,254,082 km (0.047 R)
• M21: 18,985,316 km (0.102 R)
• M22: 22,657,645 km (0.09 R)
• M23: 23,883,749 km (0.105 R)
• M24: 24,955,318 km (0.066 R)
• M25: 29,452,230 km (0.092 R)
• M26: 29,673,635 km (0.045 R)
• M27: 32,300,275 km (0.065 R)
• M28: 32,772,256 km (0.086 R)
• M29: 47,782,308 km (0.11 R)
• M30: 48,395,210 km (0.058 R)
• M31: 50,107,657 km (0.033 R)
• M32: 53,323,862 km (0.11 R)
• M33: 55,655,345 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 659

Radius: 7

Gravity: 13.45 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.71 AU - 9.77 AU

Year: 16043 Days

Day: 19.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,846,486 km

• M1: 87,066 km (0.085 R)
• M2: 352,303 km (0.098 R)
• M3: 653,144 km (0.086 R)
• M4: 1,924,427 km (0.077 R)
• M5: 2,543,613 km (0.053 R)
• M6: 2,816,330 km (0.062 R)
• M7: 4,108,556 km (0.075 R)
• M8: 4,389,052 km (0.102 R)
• M9: 4,782,943 km (0.113 R)
• M10: 5,641,186 km (0.079 R)
• M11: 5,988,253 km (0.069 R)
• M12: 6,810,593 km (0.083 R)
• M13: 7,799,584 km (0.081 R)
• M14: 9,948,258 km (0.116 R)
• M15: 10,861,404 km (0.096 R)
• M16: 12,143,308 km (0.092 R)
• M17: 16,590,404 km (0.104 R)
• M18: 18,536,373 km (0.104 R)
• M19: 23,758,236 km (0.118 R)
• M20: 26,329,076 km (0.115 R)
• M21: 38,470,289 km (0.12 R)
• M22: 39,298,613 km (0.057 R)
• M23: 52,176,745 km (0.106 R)
• M24: 63,304,733 km (0.103 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 13,239 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit