🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268

Radius: 10.2

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.55 AU - 0.59 AU

Year: 287 Days

Day: 6.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,733,409 km

• M1: 126,859 km (0.101 R)
• M2: 669,899 km (0.087 R)
• M3: 1,068,578 km (0.108 R)
• M4: 1,799,513 km (0.103 R)
• M5: 2,554,982 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.3

Radius: 9.9

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.63 AU - 0.91 AU

Year: 451 Days

Day: 12.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,733,409 km

• M1: 123,119 km (0.118 R)
• M2: 728,691 km (0.118 R)
• M3: 1,036,863 km (0.111 R)
• M4: 1,441,525 km (0.079 R)
• M5: 1,828,984 km (0.101 R)
• M6: 2,285,855 km (0.035 R)
• M7: 2,764,120 km (0.119 R)
• M8: 3,908,693 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200

Radius: 13.5

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.64 AU - 0.96 AU

Year: 477 Days

Day: 13.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,733,409 km

• M1: 169,345 km (0.097 R)
• M2: 654,939 km (0.048 R)
• M3: 1,230,442 km (0.064 R)
• M4: 2,170,366 km (0.118 R)
• M5: 2,730,909 km (0.056 R)
• M6: 3,924,102 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.3

Radius: 14.7

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.12 AU - 1.82 AU

Year: 1189 Days

Day: 6.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,733,409 km

• M1: 182,809 km (0.056 R)
• M2: 660,624 km (0.063 R)
• M3: 1,122,134 km (0.098 R)
• M4: 1,697,637 km (0.111 R)
• M5: 2,185,326 km (0.117 R)
• M6: 2,817,825 km (0.092 R)
• M7: 3,768,221 km (0.057 R)
• M8: 4,268,177 km (0.041 R)
• M9: 4,739,859 km (0.097 R)
• M10: 5,383,579 km (0.117 R)
• M11: 5,851,820 km (0.04 R)
• M12: 6,526,207 km (0.099 R)
• M13: 7,179,501 km (0.117 R)
• M14: 8,214,868 km (0.111 R)
• M15: 9,175,436 km (0.098 R)
• M16: 9,906,670 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.9

Radius: 12.1

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.41 AU - 1.85 AU

Year: 1388 Days

Day: 15 Hours

Environment

Temp: -198 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,733,409 km

• M1: 150,495 km (0.111 R)
• M2: 638,035 km (0.075 R)
• M3: 1,100,442 km (0.049 R)
• M4: 1,558,511 km (0.073 R)
• M5: 2,417,950 km (0.087 R)
• M6: 3,366,401 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.2

Radius: 13.3

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.48 AU - 1.98 AU

Year: 1517 Days

Day: 6.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,733,409 km

• M1: 165,455 km (0.089 R)
• M2: 720,912 km (0.1 R)
• M3: 1,321,996 km (0.09 R)
• M4: 1,974,094 km (0.062 R)
• M5: 2,834,431 km (0.093 R)
• M6: 3,586,609 km (0.103 R)
• M7: 4,149,546 km (0.093 R)
• M8: 4,836,499 km (0.089 R)
• M9: 5,745,007 km (0.093 R)
• M10: 6,299,417 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.9

Radius: 14.3

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.03 AU - 3.39 AU

Year: 2975 Days

Day: 7.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,733,409 km

• M1: 177,872 km (0.07 R)
• M2: 789,578 km (0.095 R)
• M3: 1,584,241 km (0.066 R)
• M4: 2,080,009 km (0.112 R)
• M5: 2,636,812 km (0.102 R)
• M6: 3,143,650 km (0.081 R)
• M7: 3,883,561 km (0.059 R)
• M8: 4,802,690 km (0.051 R)
• M9: 6,354,918 km (0.112 R)
• M10: 7,044,713 km (0.088 R)
• M11: 7,662,403 km (0.045 R)
• M12: 8,542,038 km (0.073 R)
• M13: 9,142,375 km (0.072 R)
• M14: 9,593,412 km (0.112 R)
• M15: 10,132,413 km (0.059 R)
• M16: 10,998,136 km (0.107 R)
• M17: 12,325,668 km (0.054 R)
• M18: 12,963,403 km (0.062 R)
• M19: 15,737,546 km (0.103 R)
• M20: 16,539,541 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.9

Radius: 6.6

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.09 AU - 6.33 AU

Year: 10320 Days

Day: 22.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,733,409 km

• M1: 82,129 km (0.087 R)
• M2: 404,363 km (0.092 R)
• M3: 777,460 km (0.075 R)
• M4: 1,304,793 km (0.111 R)
• M5: 1,782,010 km (0.108 R)
• M6: 2,101,551 km (0.118 R)
• M7: 3,599,026 km (0.048 R)
• M8: 4,132,940 km (0.116 R)
• M9: 4,578,592 km (0.115 R)
• M10: 5,357,549 km (0.108 R)
• M11: 6,598,014 km (0.097 R)
• M12: 7,851,943 km (0.087 R)
• M13: 8,963,755 km (0.11 R)
• M14: 11,624,652 km (0.119 R)
• M15: 13,394,096 km (0.094 R)
• M16: 14,567,990 km (0.108 R)
• M17: 18,031,480 km (0.081 R)
• M18: 19,277,780 km (0.032 R)
• M19: 19,521,625 km (0.074 R)
• M20: 22,140,036 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 883.9

Radius: 5.1

Gravity: 33.98 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7 AU - 8.32 AU

Year: 14138 Days

Day: 22.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 111.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 65,733,409 km

• M1: 72,106 km (0.117 R)
• M2: 294,109 km (0.045 R)
• M3: 872,904 km (0.075 R)
• M4: 1,041,052 km (0.095 R)
• M5: 1,313,469 km (0.086 R)
• M6: 1,681,630 km (0.066 R)
• M7: 2,807,204 km (0.12 R)
• M8: 4,329,662 km (0.12 R)
• M9: 4,894,094 km (0.105 R)
• M10: 6,751,801 km (0.064 R)
• M11: 7,280,629 km (0.045 R)
• M12: 7,462,989 km (0.115 R)
• M13: 7,695,165 km (0.068 R)
• M14: 9,620,489 km (0.108 R)
• M15: 10,232,644 km (0.072 R)
• M16: 12,678,569 km (0.064 R)
• M17: 14,605,689 km (0.109 R)
• M18: 16,719,656 km (0.101 R)
• M19: 17,278,404 km (0.102 R)
• M20: 17,521,651 km (0.11 R)
• M21: 19,550,347 km (0.034 R)
• M22: 21,824,684 km (0.1 R)
• M23: 26,138,638 km (0.082 R)
• M24: 27,990,210 km (0.093 R)
• M25: 29,119,226 km (0.071 R)
• M26: 32,441,345 km (0.083 R)
• M27: 35,482,670 km (0.11 R)
• M28: 37,072,447 km (0.098 R)
• M29: 40,678,354 km (0.033 R)
• M30: 44,208,265 km (0.061 R)
• M31: 44,968,372 km (0.031 R)
• M32: 46,671,544 km (0.104 R)
• M33: 48,578,019 km (0.112 R)
• M34: 50,041,535 km (0.083 R)
• M35: 52,038,068 km (0.107 R)
• M36: 52,885,540 km (0.089 R)
• M37: 54,087,260 km (0.115 R)
• M38: 54,782,142 km (0.087 R)
• M39: 55,482,858 km (0.059 R)
• M40: 56,723,623 km (0.114 R)
• M41: 61,305,656 km (0.084 R)
• M42: 63,013,765 km (0.052 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 15,635 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit