🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.9

Radius: 9.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.93 AU

Year: 477 Days

Day: 5.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 91,921,092 km

• M1: 123,119 km (0.104 R)
• M2: 458,368 km (0.095 R)
• M3: 896,989 km (0.109 R)
• M4: 1,254,528 km (0.113 R)
• M5: 1,892,712 km (0.065 R)
• M6: 2,375,315 km (0.064 R)
• M7: 2,784,764 km (0.102 R)
• M8: 4,277,153 km (0.077 R)
• M9: 5,360,989 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.1

Radius: 13.8

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.76 AU - 0.98 AU

Year: 541 Days

Day: 5.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 91,921,092 km

• M1: 171,589 km (0.086 R)
• M2: 603,179 km (0.108 R)
• M3: 1,094,907 km (0.11 R)
• M4: 1,580,651 km (0.027 R)
• M5: 2,076,867 km (0.12 R)
• M6: 2,873,177 km (0.117 R)
• M7: 3,558,634 km (0.088 R)
• M8: 4,046,323 km (0.108 R)
• M9: 4,750,630 km (0.112 R)
• M10: 5,931,855 km (0.109 R)
• M11: 6,444,227 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.1

Radius: 8.7

Gravity: 12.7 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.7 AU - 1.1 AU

Year: 569 Days

Day: 14.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 91,921,092 km

• M1: 108,309 km (0.091 R)
• M2: 684,410 km (0.092 R)
• M3: 1,153,400 km (0.11 R)
• M4: 1,741,768 km (0.115 R)
• M5: 2,057,719 km (0.114 R)
• M6: 2,795,087 km (0.106 R)
• M7: 3,782,881 km (0.105 R)
• M8: 4,380,226 km (0.098 R)
• M9: 5,143,175 km (0.116 R)
• M10: 5,630,714 km (0.088 R)
• M11: 6,288,047 km (0.114 R)
• M12: 6,635,563 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.6

Radius: 14.4

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.03 AU - 1.67 AU

Year: 1046 Days

Day: 11.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 91,921,092 km

• M1: 179,368 km (0.081 R)
• M2: 651,648 km (0.054 R)
• M3: 1,171,351 km (0.09 R)
• M4: 1,709,754 km (0.058 R)
• M5: 2,196,097 km (0.073 R)
• M6: 2,887,239 km (0.106 R)
• M7: 3,757,749 km (0.11 R)
• M8: 4,398,626 km (0.113 R)
• M9: 5,065,982 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 14

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.19 AU - 1.73 AU

Year: 1176 Days

Day: 10 Hours

Environment

Temp: -187 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,921,092 km

• M1: 177,722 km (0.071 R)
• M2: 632,201 km (0.117 R)
• M3: 1,073,514 km (0.1 R)
• M4: 1,549,834 km (0.054 R)
• M5: 2,096,016 km (0.113 R)
• M6: 2,913,867 km (0.098 R)
• M7: 3,405,446 km (0.117 R)
• M8: 3,968,981 km (0.077 R)
• M9: 4,798,352 km (0.095 R)
• M10: 5,305,339 km (0.076 R)
• M11: 6,088,633 km (0.075 R)
• M12: 9,768,741 km (0.096 R)
• M13: 10,362,345 km (0.051 R)
• M14: 11,656,666 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.2

Radius: 11.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.38 AU - 1.82 AU

Year: 1350 Days

Day: 12.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,921,092 km

• M1: 147,952 km (0.113 R)
• M2: 636,539 km (0.084 R)
• M3: 1,126,921 km (0.115 R)
• M4: 1,685,669 km (0.07 R)
• M5: 2,093,921 km (0.037 R)
• M6: 2,479,286 km (0.109 R)
• M7: 3,679,808 km (0.096 R)
• M8: 4,295,404 km (0.104 R)
• M9: 5,309,228 km (0.102 R)
• M10: 6,649,625 km (0.094 R)
• M11: 7,166,336 km (0.086 R)
• M12: 7,541,378 km (0.089 R)
• M13: 8,536,952 km (0.111 R)
• M14: 9,147,910 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.1

Radius: 8.7

Gravity: 9.76 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.42 AU - 2.16 AU

Year: 1597 Days

Day: 10.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,921,092 km

• M1: 108,159 km (0.077 R)
• M2: 390,899 km (0.077 R)
• M3: 734,675 km (0.079 R)
• M4: 1,127,370 km (0.036 R)
• M5: 1,425,817 km (0.118 R)
• M6: 1,767,200 km (0.096 R)
• M7: 2,139,399 km (0.052 R)
• M8: 2,754,246 km (0.103 R)
• M9: 3,980,351 km (0.074 R)
• M10: 4,950,792 km (0.109 R)
• M11: 5,811,279 km (0.107 R)
• M12: 6,314,227 km (0.115 R)
• M13: 7,003,275 km (0.108 R)
• M14: 10,030,388 km (0.068 R)
• M15: 11,183,638 km (0.109 R)
• M16: 12,461,802 km (0.093 R)
• M17: 13,015,464 km (0.091 R)
• M18: 14,002,660 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.9

Radius: 14.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.32 AU - 4.96 AU

Year: 5617 Days

Day: 14.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 91,921,092 km

• M1: 177,273 km (0.113 R)
• M2: 657,931 km (0.053 R)
• M3: 1,177,335 km (0.105 R)
• M4: 1,710,203 km (0.089 R)
• M5: 2,697,250 km (0.057 R)
• M6: 4,231,077 km (0.079 R)
• M7: 5,726,606 km (0.059 R)
• M8: 7,101,561 km (0.062 R)
• M9: 8,122,416 km (0.089 R)
• M10: 9,052,317 km (0.051 R)
• M11: 9,972,493 km (0.099 R)
• M12: 10,414,705 km (0.119 R)
• M13: 15,589,594 km (0.046 R)
• M14: 16,241,542 km (0.026 R)
• M15: 18,247,649 km (0.116 R)
• M16: 19,904,445 km (0.101 R)
• M17: 21,260,999 km (0.039 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.3

Radius: 6.8

Gravity: 19.34 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 9.44 AU - 11.9 AU

Year: 23242 Days

Day: 21.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 91,921,092 km

• M1: 90,058 km (0.118 R)
• M2: 336,595 km (0.061 R)
• M3: 911,051 km (0.079 R)
• M4: 1,216,530 km (0.086 R)
• M5: 1,736,233 km (0.045 R)
• M6: 2,057,719 km (0.113 R)
• M7: 3,384,951 km (0.112 R)
• M8: 4,477,315 km (0.097 R)
• M9: 5,616,502 km (0.09 R)
• M10: 5,830,876 km (0.116 R)
• M11: 7,035,438 km (0.083 R)
• M12: 7,386,245 km (0.083 R)
• M13: 10,822,957 km (0.119 R)
• M14: 11,564,065 km (0.112 R)
• M15: 13,222,357 km (0.119 R)
• M16: 13,912,303 km (0.1 R)
• M17: 14,706,817 km (0.111 R)
• M18: 20,020,533 km (0.111 R)
• M19: 27,582,107 km (0.09 R)
• M20: 29,088,558 km (0.079 R)
• M21: 36,104,997 km (0.096 R)
• M22: 41,522,834 km (0.088 R)
• M23: 43,164,820 km (0.087 R)
• M24: 54,322,278 km (0.116 R)
• M25: 55,494,228 km (0.106 R)
• M26: 66,366,103 km (0.119 R)
• M27: 66,810,409 km (0.114 R)
• M28: 70,667,790 km (0.107 R)
• M29: 72,063,987 km (0.064 R)
• M30: 79,071,750 km (0.113 R)
• M31: 80,576,256 km (0.1 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: 283 - 19,405 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit