🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.2

Radius: 9.2

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.8 AU - 1.2 AU

Year: 656 Days

Day: 12.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,587,994 km

• M1: 114,592 km (0.093 R)
• M2: 427,102 km (0.079 R)
• M3: 837,150 km (0.057 R)
• M4: 1,315,115 km (0.09 R)
• M5: 1,792,482 km (0.089 R)
• M6: 2,313,980 km (0.12 R)
• M7: 2,744,672 km (0.11 R)
• M8: 3,264,674 km (0.111 R)
• M9: 4,862,679 km (0.08 R)
• M10: 5,805,295 km (0.084 R)
• M11: 6,120,049 km (0.099 R)
• M12: 6,824,356 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.7

Radius: 11.5

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.79 AU - 1.29 AU

Year: 696 Days

Day: 8.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,587,994 km

• M1: 143,165 km (0.078 R)
• M2: 515,215 km (0.081 R)
• M3: 1,009,337 km (0.105 R)
• M4: 1,377,946 km (0.108 R)
• M5: 1,801,458 km (0.099 R)
• M6: 2,259,526 km (0.116 R)
• M7: 2,656,110 km (0.078 R)
• M8: 3,287,862 km (0.117 R)
• M9: 3,876,081 km (0.063 R)
• M10: 4,561,837 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.6

Radius: 13.6

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.99 AU - 2.57 AU

Year: 2258 Days

Day: 11.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,587,994 km

• M1: 169,195 km (0.093 R)
• M2: 658,380 km (0.086 R)
• M3: 1,275,023 km (0.09 R)
• M4: 1,834,070 km (0.103 R)
• M5: 2,375,315 km (0.096 R)
• M6: 3,101,613 km (0.097 R)
• M7: 3,893,584 km (0.119 R)
• M8: 4,363,321 km (0.116 R)
• M9: 5,696,687 km (0.107 R)
• M10: 6,154,307 km (0.108 R)
• M11: 6,956,301 km (0.112 R)
• M12: 7,504,428 km (0.048 R)
• M13: 8,107,008 km (0.031 R)
• M14: 9,466,553 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.7

Radius: 14.4

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.3 AU - 4.76 AU

Year: 6325 Days

Day: 14.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,587,994 km

• M1: 179,069 km (0.083 R)
• M2: 639,531 km (0.116 R)
• M3: 1,339,649 km (0.087 R)
• M4: 1,828,535 km (0.117 R)
• M5: 2,498,733 km (0.111 R)
• M6: 3,559,831 km (0.086 R)
• M7: 5,254,924 km (0.093 R)
• M8: 6,622,399 km (0.076 R)
• M9: 8,181,059 km (0.107 R)
• M10: 9,009,382 km (0.107 R)
• M11: 11,174,811 km (0.113 R)
• M12: 12,941,263 km (0.097 R)
• M13: 15,363,103 km (0.098 R)
• M14: 15,848,847 km (0.056 R)
• M15: 16,851,003 km (0.025 R)
• M16: 18,614,912 km (0.084 R)
• M17: 20,499,097 km (0.091 R)
• M18: 21,688,849 km (0.095 R)
• M19: 22,576,413 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.6

Radius: 13.3

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 4.22 AU - 5.72 AU

Year: 7268 Days

Day: 5 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,587,994 km

• M1: 165,455 km (0.036 R)
• M2: 604,525 km (0.106 R)
• M3: 1,521,560 km (0.026 R)
• M4: 2,154,060 km (0.056 R)
• M5: 2,580,114 km (0.113 R)
• M6: 3,149,334 km (0.084 R)
• M7: 3,876,829 km (0.085 R)
• M8: 4,684,957 km (0.096 R)
• M9: 5,473,636 km (0.071 R)
• M10: 6,278,772 km (0.062 R)
• M11: 7,917,318 km (0.114 R)
• M12: 9,636,048 km (0.115 R)
• M13: 12,465,841 km (0.105 R)
• M14: 15,941,747 km (0.054 R)
• M15: 17,937,383 km (0.083 R)
• M16: 18,516,028 km (0.038 R)
• M17: 27,982,731 km (0.117 R)
• M18: 29,555,004 km (0.069 R)
• M19: 34,736,775 km (0.061 R)
• M20: 35,863,995 km (0.051 R)
• M21: 40,990,565 km (0.084 R)
• M22: 41,490,969 km (0.028 R)
• M23: 42,504,046 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 923.7

Radius: 4.1

Gravity: 54.95 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.55 AU - 10.15 AU

Year: 17271 Days

Day: 18.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 84,587,994 km

• M1: 51,162 km (0.099 R)
• M2: 273,764 km (0.105 R)
• M3: 525,537 km (0.076 R)
• M4: 669,600 km (0.05 R)
• M5: 965,804 km (0.11 R)
• M6: 1,144,125 km (0.057 R)
• M7: 1,359,246 km (0.111 R)
• M8: 1,501,065 km (0.116 R)
• M9: 2,006,706 km (0.051 R)
• M10: 2,149,273 km (0.094 R)
• M11: 3,785,873 km (0.087 R)
• M12: 3,941,156 km (0.094 R)
• M13: 4,781,746 km (0.047 R)
• M14: 5,735,433 km (0.112 R)
• M15: 6,946,727 km (0.065 R)
• M16: 9,920,433 km (0.099 R)
• M17: 10,156,349 km (0.091 R)
• M18: 11,264,420 km (0.097 R)
• M19: 14,533,433 km (0.098 R)
• M20: 20,683,551 km (0.104 R)
• M21: 22,555,170 km (0.112 R)
• M22: 23,168,821 km (0.118 R)
• M23: 27,431,911 km (0.119 R)
• M24: 28,013,697 km (0.116 R)
• M25: 30,299,254 km (0.069 R)
• M26: 30,920,833 km (0.082 R)
• M27: 31,677,798 km (0.111 R)
• M28: 36,761,283 km (0.068 R)
• M29: 37,042,976 km (0.077 R)
• M30: 39,348,279 km (0.082 R)
• M31: 43,767,101 km (0.101 R)
• M32: 46,177,422 km (0.076 R)
• M33: 49,526,769 km (0.087 R)
• M34: 50,736,267 km (0.044 R)
• M35: 53,034,390 km (0.026 R)
• M36: 58,985,094 km (0.093 R)
• M37: 74,417,012 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 814.7

Radius: 6.7

Gravity: 18.15 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 7.84 AU - 12.64 AU

Year: 21496 Days

Day: 22.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,587,994 km

• M1: 83,326 km (0.115 R)
• M2: 346,319 km (0.078 R)
• M3: 576,101 km (0.117 R)
• M4: 1,295,817 km (0.086 R)
• M5: 2,039,468 km (0.094 R)
• M6: 3,147,838 km (0.079 R)
• M7: 3,614,135 km (0.089 R)
• M8: 4,226,439 km (0.111 R)
• M9: 5,330,920 km (0.09 R)
• M10: 5,864,985 km (0.115 R)
• M11: 6,943,585 km (0.059 R)
• M12: 7,938,860 km (0.093 R)
• M13: 11,031,197 km (0.089 R)
• M14: 11,558,829 km (0.087 R)
• M15: 13,316,006 km (0.117 R)
• M16: 15,981,391 km (0.119 R)
• M17: 16,656,676 km (0.115 R)
• M18: 17,262,846 km (0.062 R)
• M19: 19,264,316 km (0.039 R)
• M20: 23,721,435 km (0.082 R)
• M21: 25,499,256 km (0.073 R)
• M22: 27,125,984 km (0.092 R)
• M23: 29,192,828 km (0.114 R)
• M24: 37,767,628 km (0.107 R)
• M25: 40,961,393 km (0.115 R)
• M26: 47,361,639 km (0.089 R)
• M27: 59,056,153 km (0.093 R)
• M28: 63,135,837 km (0.093 R)
• M29: 65,031,541 km (0.088 R)
• M30: 65,886,044 km (0.071 R)
• M31: 69,824,507 km (0.089 R)
• M32: 70,271,505 km (0.101 R)
• M33: 75,550,814 km (0.069 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 17,806 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit