🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.58 AU - 0.62 AU

Year: 305 Days

Day: 15.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.55 AU - 0.67 AU

Year: 313 Days

Day: 38.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.1

Radius: 8.4

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.66 AU - 0.82 AU

Year: 418 Days

Day: 11 Hours

Environment

Temp: -144 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,419,790 km

• M1: 104,868 km (0.118 R)
• M2: 395,836 km (0.115 R)
• M3: 701,016 km (0.104 R)
• M4: 1,115,402 km (0.117 R)
• M5: 1,747,004 km (0.03 R)
• M6: 2,353,025 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.9

Radius: 9.9

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.51 AU - 2.63 AU

Year: 2703 Days

Day: 14.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,419,790 km

• M1: 123,119 km (0.106 R)
• M2: 446,998 km (0.116 R)
• M3: 1,064,389 km (0.079 R)
• M4: 1,384,079 km (0.088 R)
• M5: 1,867,580 km (0.085 R)
• M6: 2,328,042 km (0.095 R)
• M7: 3,064,064 km (0.108 R)
• M8: 3,409,485 km (0.098 R)
• M9: 3,929,338 km (0.113 R)
• M10: 4,605,520 km (0.051 R)
• M11: 5,128,065 km (0.089 R)
• M12: 6,188,714 km (0.059 R)
• M13: 6,528,451 km (0.068 R)
• M14: 6,853,228 km (0.097 R)
• M15: 8,804,134 km (0.086 R)
• M16: 9,201,167 km (0.115 R)
• M17: 9,679,431 km (0.077 R)
• M18: 9,995,681 km (0.111 R)
• M19: 11,099,863 km (0.029 R)
• M20: 11,602,811 km (0.113 R)
• M21: 12,040,235 km (0.077 R)
• M22: 13,636,444 km (0.088 R)
• M23: 14,622,743 km (0.117 R)
• M24: 15,994,556 km (0.116 R)
• M25: 16,338,032 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.5

Radius: 8.5

Gravity: 11.55 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.92 AU - 6.44 AU

Year: 7734 Days

Day: 10.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 35,419,790 km

• M1: 106,813 km (0.116 R)
• M2: 400,773 km (0.069 R)
• M3: 844,630 km (0.099 R)
• M4: 1,112,260 km (0.113 R)
• M5: 1,596,508 km (0.084 R)
• M6: 2,198,042 km (0.076 R)
• M7: 3,181,049 km (0.055 R)
• M8: 3,721,247 km (0.101 R)
• M9: 4,132,043 km (0.086 R)
• M10: 4,630,204 km (0.093 R)
• M11: 7,662,104 km (0.106 R)
• M12: 9,353,308 km (0.12 R)
• M13: 10,163,231 km (0.03 R)
• M14: 11,227,320 km (0.037 R)
• M15: 11,651,580 km (0.065 R)
• M16: 13,754,776 km (0.063 R)
• M17: 15,636,269 km (0.117 R)
• M18: 17,897,440 km (0.076 R)
• M19: 19,979,843 km (0.12 R)
• M20: 20,919,766 km (0.095 R)
• M21: 21,320,090 km (0.078 R)
• M22: 25,791,122 km (0.096 R)
• M23: 26,436,936 km (0.062 R)
• M24: 34,270,778 km (0.117 R)
• M25: 34,715,383 km (0.09 R)
• M26: 36,532,698 km (0.105 R)
• M27: 40,109,284 km (0.077 R)
• M28: 40,976,203 km (0.11 R)
• M29: 43,004,601 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.9

Radius: 7.8

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 7.31 AU - 7.71 AU

Year: 13501 Days

Day: 19.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 35,419,790 km

• M1: 100,530 km (0.108 R)
• M2: 676,482 km (0.104 R)
• M3: 1,064,538 km (0.038 R)
• M4: 1,317,359 km (0.059 R)
• M5: 2,142,989 km (0.045 R)
• M6: 2,876,019 km (0.096 R)
• M7: 3,275,745 km (0.054 R)
• M8: 5,359,493 km (0.082 R)
• M9: 5,855,859 km (0.079 R)
• M10: 6,499,429 km (0.112 R)
• M11: 6,777,831 km (0.096 R)
• M12: 7,660,907 km (0.077 R)
• M13: 7,926,892 km (0.074 R)
• M14: 8,809,819 km (0.061 R)
• M15: 12,267,923 km (0.056 R)
• M16: 13,575,408 km (0.102 R)
• M17: 14,229,600 km (0.065 R)
• M18: 15,180,444 km (0.1 R)
• M19: 17,974,483 km (0.083 R)
• M20: 20,072,444 km (0.11 R)
• M21: 20,578,833 km (0.115 R)
• M22: 23,055,425 km (0.039 R)
• M23: 24,748,425 km (0.056 R)
• M24: 25,625,218 km (0.107 R)
• M25: 26,826,339 km (0.105 R)
• M26: 31,779,375 km (0.118 R)
• M27: 36,180,395 km (0.034 R)
• M28: 37,056,440 km (0.113 R)
• M29: 37,818,491 km (0.084 R)
• M30: 42,611,457 km (0.078 R)
• M31: 44,011,394 km (0.059 R)
• M32: 47,944,023 km (0.108 R)
• M33: 50,226,887 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.2

Radius: 6.7

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.36 AU - 10.12 AU

Year: 16950 Days

Day: 17.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,419,790 km

• M1: 88,263 km (0.068 R)
• M2: 307,124 km (0.086 R)
• M3: 771,177 km (0.093 R)
• M4: 1,388,119 km (0.039 R)
• M5: 2,053,081 km (0.059 R)
• M6: 3,324,813 km (0.109 R)
• M7: 4,291,664 km (0.097 R)
• M8: 4,743,150 km (0.094 R)
• M9: 11,843,813 km (0.104 R)
• M10: 14,871,973 km (0.084 R)
• M11: 15,717,949 km (0.118 R)
• M12: 19,002,071 km (0.114 R)
• M13: 19,781,326 km (0.094 R)
• M14: 25,162,811 km (0.092 R)
• M15: 31,837,868 km (0.111 R)
• M16: 33,037,194 km (0.083 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: 230 - 16,643 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit