🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.9

Radius: 13.1

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.52 AU - 0.8 AU

Year: 358 Days

Day: 9.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,449,133 km

• M1: 162,912 km (0.119 R)
• M2: 687,701 km (0.104 R)
• M3: 1,195,885 km (0.042 R)
• M4: 2,052,483 km (0.067 R)
• M5: 2,637,111 km (0.063 R)
• M6: 3,185,537 km (0.113 R)
• M7: 3,600,821 km (0.105 R)
• M8: 4,584,726 km (0.058 R)
• M9: 5,101,886 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.2

Radius: 10.5

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.8 AU - 0.82 AU

Year: 486 Days

Day: 9.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,449,133 km

• M1: 130,599 km (0.077 R)
• M2: 565,929 km (0.116 R)
• M3: 912,248 km (0.096 R)
• M4: 1,262,905 km (0.07 R)
• M5: 2,005,808 km (0.1 R)
• M6: 2,594,177 km (0.098 R)
• M7: 4,116,036 km (0.099 R)
• M8: 4,756,464 km (0.096 R)
• M9: 6,072,028 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289

Radius: 14.7

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.87 AU - 0.93 AU

Year: 569 Days

Day: 7.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,449,133 km

• M1: 182,809 km (0.095 R)
• M2: 686,205 km (0.058 R)
• M3: 1,232,686 km (0.077 R)
• M4: 2,084,497 km (0.111 R)
• M5: 2,754,695 km (0.097 R)
• M6: 3,780,488 km (0.082 R)
• M7: 4,491,227 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.6

Radius: 12.7

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.95 AU - 1.05 AU

Year: 667 Days

Day: 10.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,449,133 km

• M1: 158,125 km (0.036 R)
• M2: 708,944 km (0.098 R)
• M3: 1,220,120 km (0.074 R)
• M4: 1,681,181 km (0.079 R)
• M5: 2,400,597 km (0.068 R)
• M6: 2,908,631 km (0.112 R)
• M7: 3,651,834 km (0.101 R)
• M8: 4,204,747 km (0.12 R)
• M9: 5,156,639 km (0.068 R)
• M10: 5,609,172 km (0.09 R)
• M11: 6,762,422 km (0.092 R)
• M12: 7,554,244 km (0.063 R)
• M13: 8,091,749 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.5

Radius: 12.7

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.24 AU - 1.8 AU

Year: 1250 Days

Day: 11 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,449,133 km

• M1: 158,125 km (0.057 R)
• M2: 568,472 km (0.085 R)
• M3: 968,646 km (0.111 R)
• M4: 1,396,047 km (0.112 R)
• M5: 1,824,047 km (0.107 R)
• M6: 3,009,460 km (0.033 R)
• M7: 3,595,585 km (0.12 R)
• M8: 4,084,471 km (0.083 R)
• M9: 6,455,148 km (0.114 R)
• M10: 8,232,969 km (0.094 R)
• M11: 9,057,852 km (0.059 R)
• M12: 9,874,656 km (0.089 R)
• M13: 10,608,733 km (0.087 R)
• M14: 11,006,065 km (0.118 R)
• M15: 11,725,182 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.2

Radius: 9.5

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.66 AU - 2.4 AU

Year: 1929 Days

Day: 8.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,449,133 km

• M1: 118,182 km (0.084 R)
• M2: 438,172 km (0.112 R)
• M3: 854,653 km (0.09 R)
• M4: 1,313,619 km (0.108 R)
• M5: 1,713,344 km (0.109 R)
• M6: 2,289,895 km (0.093 R)
• M7: 2,692,163 km (0.087 R)
• M8: 4,981,310 km (0.085 R)
• M9: 5,614,857 km (0.07 R)
• M10: 6,058,415 km (0.102 R)
• M11: 7,926,443 km (0.111 R)
• M12: 11,795,194 km (0.084 R)
• M13: 12,641,768 km (0.115 R)
• M14: 13,282,645 km (0.05 R)
• M15: 13,777,216 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.6

Radius: 9.3

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.55 AU - 3.43 AU

Year: 3448 Days

Day: 5.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,449,133 km

• M1: 115,639 km (0.081 R)
• M2: 508,184 km (0.06 R)
• M3: 1,101,938 km (0.12 R)
• M4: 1,445,415 km (0.101 R)
• M5: 1,793,379 km (0.08 R)
• M6: 2,210,159 km (0.047 R)
• M7: 4,014,608 km (0.067 R)
• M8: 4,394,138 km (0.085 R)
• M9: 4,997,466 km (0.113 R)
• M10: 6,004,559 km (0.084 R)
• M11: 6,970,812 km (0.11 R)
• M12: 8,512,568 km (0.085 R)
• M13: 10,905,685 km (0.048 R)
• M14: 13,537,710 km (0.067 R)
• M15: 14,210,900 km (0.108 R)
• M16: 15,430,422 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.1

Radius: 9

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.6 AU - 5.92 AU

Year: 6925 Days

Day: 9 Hours

Environment

Temp: -220 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,449,133 km

• M1: 121,025 km (0.077 R)
• M2: 409,300 km (0.11 R)
• M3: 762,351 km (0.077 R)
• M4: 1,056,161 km (0.114 R)
• M5: 2,214,497 km (0.093 R)
• M6: 5,315,512 km (0.045 R)
• M7: 5,625,179 km (0.041 R)
• M8: 6,349,083 km (0.063 R)
• M9: 7,133,874 km (0.115 R)
• M10: 7,627,098 km (0.115 R)
• M11: 8,895,389 km (0.114 R)
• M12: 9,647,866 km (0.1 R)
• M13: 10,490,102 km (0.029 R)
• M14: 13,142,921 km (0.075 R)
• M15: 14,957,244 km (0.108 R)
• M16: 17,401,972 km (0.093 R)
• M17: 19,148,378 km (0.111 R)
• M18: 22,581,051 km (0.1 R)
• M19: 23,478,638 km (0.096 R)
• M20: 25,257,955 km (0.102 R)
• M21: 31,938,697 km (0.101 R)
• M22: 36,843,562 km (0.105 R)
• M23: 37,631,344 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.2

Radius: 5.2

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.44 AU - 9.58 AU

Year: 16555 Days

Day: 19 Hours

Environment

Temp: -239 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,449,133 km

• M1: 65,823 km (0.103 R)
• M2: 543,339 km (0.037 R)
• M3: 1,165,966 km (0.04 R)
• M4: 1,737,430 km (0.108 R)
• M5: 1,980,377 km (0.075 R)
• M6: 2,787,308 km (0.089 R)
• M7: 4,530,871 km (0.077 R)
• M8: 5,808,885 km (0.118 R)
• M9: 6,318,416 km (0.065 R)
• M10: 6,530,396 km (0.082 R)
• M11: 15,969,423 km (0.11 R)
• M12: 18,073,816 km (0.028 R)
• M13: 18,862,945 km (0.112 R)
• M14: 19,900,257 km (0.088 R)
• M15: 31,511,595 km (0.109 R)
• M16: 32,027,109 km (0.107 R)
• M17: 35,128,572 km (0.091 R)
• M18: 36,355,424 km (0.059 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 282 - 12,182 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit