🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.64 AU - 0.66 AU

Year: 338 Days

Day: 12 Hours

Environment

Temp: -130 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.63 AU - 0.71 AU

Year: 354 Days

Day: 45.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.5

Radius: 10.6

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.08 AU - 1.12 AU

Year: 745 Days

Day: 11.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,737,038 km

• M1: 131,796 km (0.079 R)
• M2: 804,837 km (0.099 R)
• M3: 1,153,699 km (0.078 R)
• M4: 1,565,542 km (0.099 R)
• M5: 2,135,210 km (0.094 R)
• M6: 2,486,167 km (0.103 R)
• M7: 2,863,453 km (0.078 R)
• M8: 3,749,671 km (0.118 R)
• M9: 4,916,534 km (0.099 R)
• M10: 6,658,152 km (0.07 R)
• M11: 7,415,866 km (0.094 R)
• M12: 8,178,964 km (0.081 R)
• M13: 9,129,958 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.1

Radius: 14

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.67 AU - 2.95 AU

Year: 3041 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,737,038 km

• M1: 184,903 km (0.095 R)
• M2: 665,411 km (0.091 R)
• M3: 1,115,701 km (0.108 R)
• M4: 1,863,690 km (0.116 R)
• M5: 2,579,815 km (0.086 R)
• M6: 4,312,009 km (0.052 R)
• M7: 4,831,263 km (0.114 R)
• M8: 5,392,106 km (0.09 R)
• M9: 6,749,407 km (0.119 R)
• M10: 8,114,488 km (0.115 R)
• M11: 9,556,910 km (0.116 R)
• M12: 11,916,667 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.1

Radius: 15

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.5 AU - 3.3 AU

Year: 3189 Days

Day: 10 Hours

Environment

Temp: -199 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,737,038 km

• M1: 186,549 km (0.056 R)
• M2: 813,812 km (0.081 R)
• M3: 1,917,246 km (0.092 R)
• M4: 2,607,940 km (0.106 R)
• M5: 4,014,908 km (0.035 R)
• M6: 5,301,599 km (0.081 R)
• M7: 6,647,082 km (0.083 R)
• M8: 8,342,176 km (0.044 R)
• M9: 8,851,108 km (0.058 R)
• M10: 10,464,969 km (0.063 R)
• M11: 13,017,109 km (0.091 R)
• M12: 13,518,112 km (0.113 R)
• M13: 19,795,538 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.9

Radius: 10.5

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.94 AU - 4.88 AU

Year: 4992 Days

Day: 10.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,737,038 km

• M1: 130,599 km (0.086 R)
• M2: 476,619 km (0.118 R)
• M3: 861,534 km (0.115 R)
• M4: 1,210,097 km (0.103 R)
• M5: 3,013,948 km (0.116 R)
• M6: 3,400,210 km (0.065 R)
• M7: 4,762,448 km (0.109 R)
• M8: 5,522,106 km (0.106 R)
• M9: 6,861,905 km (0.072 R)
• M10: 7,317,430 km (0.097 R)
• M11: 8,525,583 km (0.112 R)
• M12: 9,731,042 km (0.069 R)
• M13: 11,333,235 km (0.117 R)
• M14: 12,684,104 km (0.09 R)
• M15: 13,533,671 km (0.102 R)
• M16: 14,705,919 km (0.102 R)
• M17: 18,695,395 km (0.098 R)
• M18: 21,525,189 km (0.069 R)
• M19: 22,426,965 km (0.085 R)
• M20: 27,754,594 km (0.119 R)
• M21: 29,549,768 km (0.066 R)
• M22: 32,191,218 km (0.108 R)
• M23: 32,581,070 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.7

Radius: 3.1

Gravity: 22.45 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.99 AU - 11.35 AU

Year: 17930 Days

Day: 24.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,737,038 km

• M1: 50,564 km (0.088 R)
• M2: 490,232 km (0.116 R)
• M3: 790,026 km (0.053 R)
• M4: 903,422 km (0.088 R)
• M5: 1,006,345 km (0.107 R)
• M6: 1,199,326 km (0.081 R)
• M7: 2,935,260 km (0.118 R)
• M8: 3,093,235 km (0.055 R)
• M9: 3,304,617 km (0.116 R)
• M10: 4,905,015 km (0.065 R)
• M11: 5,031,425 km (0.081 R)
• M12: 10,477,984 km (0.12 R)
• M13: 11,892,283 km (0.103 R)
• M14: 12,351,847 km (0.102 R)
• M15: 13,063,185 km (0.092 R)
• M16: 13,184,360 km (0.092 R)
• M17: 13,864,132 km (0.097 R)
• M18: 19,684,088 km (0.115 R)
• M19: 22,337,056 km (0.117 R)
• M20: 25,690,143 km (0.084 R)
• M21: 36,637,117 km (0.077 R)
• M22: 36,757,543 km (0.053 R)
• M23: 39,347,082 km (0.105 R)
• M24: 40,750,759 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.2

Radius: 6.2

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 9.36 AU - 10.34 AU

Year: 19960 Days

Day: 23.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,737,038 km

• M1: 84,822 km (0.081 R)
• M2: 409,599 km (0.059 R)
• M3: 1,105,229 km (0.116 R)
• M4: 2,019,272 km (0.084 R)
• M5: 3,094,582 km (0.101 R)
• M6: 8,719,013 km (0.061 R)
• M7: 9,898,143 km (0.101 R)
• M8: 13,682,969 km (0.117 R)
• M9: 14,133,708 km (0.066 R)
• M10: 16,035,695 km (0.116 R)
• M11: 18,256,027 km (0.087 R)
• M12: 18,488,801 km (0.112 R)
• M13: 21,352,254 km (0.119 R)
• M14: 25,547,427 km (0.082 R)
• M15: 30,369,265 km (0.071 R)
• M16: 33,978,164 km (0.062 R)
• M17: 35,162,082 km (0.115 R)
• M18: 36,006,861 km (0.104 R)
• M19: 41,898,773 km (0.077 R)
• M20: 46,500,404 km (0.114 R)
• M21: 47,664,574 km (0.108 R)
• M22: 51,427,709 km (0.103 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 14,398 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit