🌌 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: 541.3

Radius: 10.8

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.51 AU - 0.63 AU

Year: 297 Days

Day: 12.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,867,519 km

• M1: 134,339 km (0.104 R)
• M2: 506,838 km (0.112 R)
• M3: 1,101,190 km (0.053 R)
• M4: 1,516,025 km (0.084 R)
• M5: 1,948,363 km (0.055 R)
• M6: 2,387,283 km (0.099 R)
• M7: 3,134,973 km (0.103 R)
• M8: 3,608,001 km (0.054 R)
• M9: 4,225,841 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.3

Radius: 13

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.92 AU - 1.4 AU

Year: 862 Days

Day: 9.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,867,519 km

• M1: 161,715 km (0.052 R)
• M2: 602,730 km (0.075 R)
• M3: 1,306,588 km (0.117 R)
• M4: 1,823,000 km (0.115 R)
• M5: 2,623,348 km (0.075 R)
• M6: 3,079,173 km (0.094 R)
• M7: 4,415,381 km (0.105 R)
• M8: 4,974,129 km (0.065 R)
• M9: 5,698,632 km (0.056 R)
• M10: 6,780,523 km (0.056 R)
• M11: 7,844,912 km (0.111 R)
• M12: 8,747,436 km (0.044 R)
• M13: 9,405,517 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.8

Radius: 11

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.45 AU - 1.61 AU

Year: 1306 Days

Day: 7.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,867,519 km

• M1: 137,181 km (0.084 R)
• M2: 488,138 km (0.05 R)
• M3: 960,119 km (0.048 R)
• M4: 1,442,871 km (0.076 R)
• M5: 1,787,545 km (0.103 R)
• M6: 2,461,483 km (0.102 R)
• M7: 2,807,802 km (0.069 R)
• M8: 3,200,646 km (0.112 R)
• M9: 3,630,292 km (0.117 R)
• M10: 5,137,041 km (0.033 R)
• M11: 5,956,688 km (0.077 R)
• M12: 8,189,436 km (0.095 R)
• M13: 9,977,280 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.1

Radius: 10.6

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.39 AU - 2.01 AU

Year: 1530 Days

Day: 10.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,867,519 km

• M1: 131,796 km (0.049 R)
• M2: 765,343 km (0.089 R)
• M3: 1,507,498 km (0.103 R)
• M4: 2,312,783 km (0.073 R)
• M5: 4,685,854 km (0.107 R)
• M6: 6,969,466 km (0.109 R)
• M7: 7,590,596 km (0.089 R)
• M8: 8,300,587 km (0.107 R)
• M9: 9,533,573 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678

Radius: 11.7

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.13 AU - 3.47 AU

Year: 4138 Days

Day: 13.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,867,519 km

• M1: 146,456 km (0.094 R)
• M2: 901,327 km (0.076 R)
• M3: 1,492,538 km (0.096 R)
• M4: 2,972,659 km (0.063 R)
• M5: 4,439,466 km (0.064 R)
• M6: 5,618,746 km (0.093 R)
• M7: 6,463,077 km (0.112 R)
• M8: 7,524,773 km (0.055 R)
• M9: 15,012,296 km (0.077 R)
• M10: 16,175,419 km (0.053 R)
• M11: 17,042,189 km (0.095 R)
• M12: 22,196,734 km (0.114 R)
• M13: 23,851,585 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.5

Radius: 13.2

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.92 AU - 6.42 AU

Year: 8114 Days

Day: 10.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,867,519 km

• M1: 165,455 km (0.118 R)
• M2: 1,406,669 km (0.045 R)
• M3: 3,418,611 km (0.107 R)
• M4: 4,243,044 km (0.086 R)
• M5: 5,196,282 km (0.088 R)
• M6: 7,994,660 km (0.077 R)
• M7: 9,375,448 km (0.079 R)
• M8: 13,448,849 km (0.116 R)
• M9: 16,829,312 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 526.7

Radius: 4.2

Gravity: 29.86 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.18 AU - 9.46 AU

Year: 19640 Days

Day: 23.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,867,519 km

• M1: 53,706 km (0.026 R)
• M2: 206,894 km (0.038 R)
• M3: 440,267 km (0.094 R)
• M4: 911,500 km (0.086 R)
• M5: 1,220,270 km (0.051 R)
• M6: 1,611,917 km (0.11 R)
• M7: 1,783,207 km (0.106 R)
• M8: 2,902,647 km (0.047 R)
• M9: 4,390,698 km (0.114 R)
• M10: 5,006,293 km (0.092 R)
• M11: 7,380,860 km (0.091 R)
• M12: 8,247,779 km (0.088 R)
• M13: 8,602,626 km (0.071 R)
• M14: 9,784,150 km (0.102 R)
• M15: 10,239,376 km (0.092 R)
• M16: 10,888,182 km (0.097 R)
• M17: 13,066,476 km (0.034 R)
• M18: 14,257,425 km (0.065 R)
• M19: 14,402,086 km (0.089 R)
• M20: 14,694,550 km (0.093 R)
• M21: 16,294,649 km (0.11 R)
• M22: 18,950,609 km (0.063 R)
• M23: 19,213,453 km (0.093 R)
• M24: 27,488,010 km (0.076 R)
• M25: 27,937,851 km (0.088 R)
• M26: 30,981,569 km (0.098 R)
• M27: 34,629,214 km (0.07 R)
• M28: 35,285,650 km (0.114 R)
• M29: 38,552,718 km (0.078 R)
• M30: 50,553,758 km (0.082 R)
• M31: 63,052,511 km (0.069 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 15,709 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit