🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.2

Radius: 11

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.49 AU - 0.59 AU

Year: 279 Days

Day: 8.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,449,978 km

• M1: 136,882 km (0.113 R)
• M2: 545,583 km (0.097 R)
• M3: 940,821 km (0.069 R)
• M4: 1,301,352 km (0.047 R)
• M5: 1,689,259 km (0.083 R)
• M6: 2,346,293 km (0.095 R)
• M7: 2,705,328 km (0.115 R)
• M8: 3,185,238 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.7

Radius: 11

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.55 AU - 0.75 AU

Year: 368 Days

Day: 10.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 166 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,449,978 km

• M1: 140,173 km (0.117 R)
• M2: 493,224 km (0.09 R)
• M3: 840,291 km (0.107 R)
• M4: 1,261,409 km (0.046 R)
• M5: 2,538,975 km (0.077 R)
• M6: 3,328,403 km (0.093 R)
• M7: 5,064,337 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.4

Radius: 12

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.58 AU - 0.88 AU

Year: 438 Days

Day: 13.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,449,978 km

• M1: 151,094 km (0.035 R)
• M2: 597,195 km (0.108 R)
• M3: 1,079,349 km (0.056 R)
• M4: 1,571,376 km (0.104 R)
• M5: 2,871,531 km (0.086 R)
• M6: 3,746,080 km (0.119 R)
• M7: 4,218,660 km (0.107 R)
• M8: 5,204,959 km (0.114 R)
• M9: 5,660,484 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.2

Radius: 14.3

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.82 AU - 1.04 AU

Year: 630 Days

Day: 13.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,449,978 km

• M1: 177,872 km (0.116 R)
• M2: 710,590 km (0.037 R)
• M3: 1,187,508 km (0.061 R)
• M4: 2,016,729 km (0.11 R)
• M5: 2,587,744 km (0.118 R)
• M6: 3,408,139 km (0.109 R)
• M7: 3,926,645 km (0.1 R)
• M8: 4,468,638 km (0.07 R)
• M9: 5,384,177 km (0.055 R)
• M10: 6,164,031 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.6

Radius: 13.1

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.93 AU - 0.95 AU

Year: 641 Days

Day: 8.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,449,978 km

• M1: 162,912 km (0.105 R)
• M2: 1,007,392 km (0.04 R)
• M3: 1,705,565 km (0.087 R)
• M4: 2,151,816 km (0.08 R)
• M5: 2,905,490 km (0.12 R)
• M6: 3,510,164 km (0.113 R)
• M7: 4,837,995 km (0.034 R)
• M8: 5,414,545 km (0.108 R)
• M9: 6,982,929 km (0.029 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.3

Radius: 13.9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.82 AU - 1.14 AU

Year: 682 Days

Day: 11.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,449,978 km

• M1: 172,935 km (0.097 R)
• M2: 720,463 km (0.102 R)
• M3: 1,234,631 km (0.105 R)
• M4: 1,763,460 km (0.106 R)
• M5: 2,413,612 km (0.086 R)
• M6: 2,875,421 km (0.108 R)
• M7: 3,500,590 km (0.106 R)
• M8: 4,777,408 km (0.058 R)
• M9: 5,714,339 km (0.09 R)
• M10: 6,585,747 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.4

Radius: 11.1

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.67 AU - 2.05 AU

Year: 1783 Days

Day: 8.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,449,978 km

• M1: 138,228 km (0.115 R)
• M2: 571,763 km (0.078 R)
• M3: 936,632 km (0.113 R)
• M4: 1,538,913 km (0.088 R)
• M5: 1,912,609 km (0.058 R)
• M6: 2,520,275 km (0.093 R)
• M7: 3,590,798 km (0.107 R)
• M8: 4,084,171 km (0.034 R)
• M9: 5,162,623 km (0.107 R)
• M10: 6,064,099 km (0.101 R)
• M11: 7,875,131 km (0.083 R)
• M12: 8,970,038 km (0.036 R)
• M13: 9,435,287 km (0.074 R)
• M14: 11,154,316 km (0.08 R)
• M15: 12,656,429 km (0.103 R)
• M16: 14,378,899 km (0.076 R)
• M17: 15,437,303 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373

Radius: 7.3

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.77 AU - 5.85 AU

Year: 9844 Days

Day: 21.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 36,449,978 km

• M1: 90,806 km (0.115 R)
• M2: 530,923 km (0.092 R)
• M3: 1,691,503 km (0.057 R)
• M4: 2,144,934 km (0.117 R)
• M5: 2,872,728 km (0.119 R)
• M6: 4,180,064 km (0.113 R)
• M7: 4,721,159 km (0.111 R)
• M8: 4,979,365 km (0.081 R)
• M9: 5,246,996 km (0.086 R)
• M10: 5,909,116 km (0.053 R)
• M11: 6,661,294 km (0.091 R)
• M12: 7,023,470 km (0.073 R)
• M13: 7,748,123 km (0.103 R)
• M14: 9,753,332 km (0.063 R)
• M15: 10,173,403 km (0.038 R)
• M16: 10,508,353 km (0.115 R)
• M17: 12,295,000 km (0.084 R)
• M18: 13,746,848 km (0.106 R)
• M19: 14,038,713 km (0.079 R)
• M20: 16,721,452 km (0.112 R)
• M21: 21,164,209 km (0.111 R)
• M22: 21,868,366 km (0.079 R)
• M23: 22,106,526 km (0.083 R)
• M24: 24,413,475 km (0.087 R)
• M25: 25,187,793 km (0.041 R)
• M26: 25,449,590 km (0.117 R)
• M27: 29,888,009 km (0.064 R)
• M28: 31,576,221 km (0.077 R)
• M29: 32,289,504 km (0.067 R)
• M30: 35,468,159 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 231.6

Radius: 5.7

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.72 AU - 7.2 AU

Year: 11541 Days

Day: 17.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 156.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,449,978 km

• M1: 76,295 km (0.119 R)
• M2: 875,896 km (0.119 R)
• M3: 1,563,597 km (0.047 R)
• M4: 2,115,015 km (0.116 R)
• M5: 5,781,210 km (0.081 R)
• M6: 7,299,927 km (0.105 R)
• M7: 11,298,678 km (0.118 R)
• M8: 16,295,696 km (0.116 R)
• M9: 19,058,170 km (0.072 R)
• M10: 19,414,961 km (0.113 R)
• M11: 19,776,390 km (0.119 R)
• M12: 24,218,399 km (0.11 R)
• M13: 26,272,528 km (0.087 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 101.4

Radius: 5.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.56 AU - 9.32 AU

Year: 17235 Days

Day: 23.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,449,978 km

• M1: 154,983 km (0.056 R)
• M2: 1,456,036 km (0.085 R)
• M3: 2,188,766 km (0.098 R)
• M4: 5,033,520 km (0.108 R)
• M5: 7,574,589 km (0.04 R)
• M6: 15,973,313 km (0.068 R)
• M7: 16,162,704 km (0.089 R)
• M8: 17,597,796 km (0.083 R)
• M9: 21,476,270 km (0.058 R)
• M10: 33,067,413 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 16,134 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit