🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13

Radius: 15

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.56 AU - 0.72 AU

Year: 347 Days

Day: 5.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 46,322,760 km

• M1: 186,549 km (0.087 R)
• M2: 733,179 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.4

Radius: 14.3

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.95 AU - 1.57 AU

Year: 959 Days

Day: 12 Hours

Environment

Temp: -189 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,322,760 km

• M1: 177,872 km (0.114 R)
• M2: 995,275 km (0.117 R)
• M3: 1,616,854 km (0.074 R)
• M4: 2,336,719 km (0.085 R)
• M5: 2,917,308 km (0.035 R)
• M6: 4,172,285 km (0.074 R)
• M7: 4,704,703 km (0.046 R)
• M8: 5,321,196 km (0.11 R)
• M9: 5,782,406 km (0.098 R)
• M10: 6,580,960 km (0.058 R)
• M11: 7,066,106 km (0.096 R)
• M12: 7,600,170 km (0.069 R)
• M13: 8,057,042 km (0.087 R)
• M14: 8,559,242 km (0.09 R)
• M15: 9,252,030 km (0.108 R)
• M16: 9,892,309 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.8

Radius: 11.2

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.44 AU - 1.54 AU

Year: 1234 Days

Day: 13.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,322,760 km

• M1: 141,968 km (0.089 R)
• M2: 542,741 km (0.119 R)
• M3: 946,207 km (0.111 R)
• M4: 1,391,559 km (0.05 R)
• M5: 1,876,556 km (0.103 R)
• M6: 2,253,542 km (0.084 R)
• M7: 2,745,271 km (0.082 R)
• M8: 3,178,057 km (0.082 R)
• M9: 3,640,614 km (0.099 R)
• M10: 4,029,269 km (0.076 R)
• M11: 4,392,193 km (0.095 R)
• M12: 4,890,953 km (0.097 R)
• M13: 5,489,195 km (0.075 R)
• M14: 5,914,651 km (0.06 R)
• M15: 6,270,993 km (0.094 R)
• M16: 7,125,347 km (0.12 R)
• M17: 8,136,778 km (0.104 R)
• M18: 8,977,967 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.3

Radius: 13.2

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.14 AU - 1.9 AU

Year: 1271 Days

Day: 11.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,322,760 km

• M1: 166,652 km (0.092 R)
• M2: 680,820 km (0.095 R)
• M3: 1,098,647 km (0.039 R)
• M4: 1,999,675 km (0.115 R)
• M5: 2,494,844 km (0.075 R)
• M6: 3,229,668 km (0.086 R)
• M7: 4,496,613 km (0.096 R)
• M8: 4,913,841 km (0.089 R)
• M9: 5,377,595 km (0.106 R)
• M10: 6,370,775 km (0.093 R)
• M11: 7,934,821 km (0.094 R)
• M12: 9,993,437 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416

Radius: 14.6

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.6 AU - 2.54 AU

Year: 2020 Days

Day: 7.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,322,760 km

• M1: 181,612 km (0.11 R)
• M2: 2,143,438 km (0.111 R)
• M3: 2,682,439 km (0.042 R)
• M4: 4,237,808 km (0.038 R)
• M5: 5,118,192 km (0.118 R)
• M6: 6,429,567 km (0.081 R)
• M7: 7,033,793 km (0.095 R)
• M8: 8,385,858 km (0.084 R)
• M9: 10,644,038 km (0.11 R)
• M10: 11,674,319 km (0.11 R)
• M11: 12,537,798 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.8

Radius: 8.5

Gravity: 11.58 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.94 AU - 2.36 AU

Year: 2138 Days

Day: 9.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,322,760 km

• M1: 105,766 km (0.065 R)
• M2: 444,754 km (0.082 R)
• M3: 766,390 km (0.089 R)
• M4: 1,646,923 km (0.114 R)
• M5: 1,996,982 km (0.09 R)
• M6: 2,652,370 km (0.093 R)
• M7: 2,974,155 km (0.082 R)
• M8: 4,119,626 km (0.074 R)
• M9: 5,609,172 km (0.105 R)
• M10: 6,247,506 km (0.068 R)
• M11: 6,516,034 km (0.105 R)
• M12: 7,790,758 km (0.097 R)
• M13: 8,552,361 km (0.109 R)
• M14: 9,573,067 km (0.114 R)
• M15: 10,039,812 km (0.03 R)
• M16: 10,749,205 km (0.041 R)
• M17: 12,184,148 km (0.055 R)
• M18: 17,996,175 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99

Radius: 5.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 6.48 AU - 9.16 AU

Year: 14832 Days

Day: 16.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,322,760 km

• M1: 66,122 km (0.078 R)
• M2: 651,948 km (0.11 R)
• M3: 852,708 km (0.074 R)
• M4: 1,600,697 km (0.107 R)
• M5: 2,696,950 km (0.12 R)
• M6: 3,263,478 km (0.061 R)
• M7: 3,953,124 km (0.066 R)
• M8: 4,655,635 km (0.062 R)
• M9: 5,408,561 km (0.073 R)
• M10: 8,583,776 km (0.116 R)
• M11: 11,120,358 km (0.083 R)
• M12: 12,507,130 km (0.052 R)
• M13: 14,228,403 km (0.118 R)
• M14: 14,624,987 km (0.115 R)
• M15: 15,263,022 km (0.092 R)
• M16: 16,346,709 km (0.057 R)
• M17: 21,491,081 km (0.084 R)
• M18: 24,994,962 km (0.058 R)
• M19: 26,838,905 km (0.116 R)
• M20: 27,444,178 km (0.048 R)
• M21: 27,706,274 km (0.103 R)
• M22: 32,617,273 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.6

Radius: 8

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.75 AU - 9.33 AU

Year: 15462 Days

Day: 23.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,322,760 km

• M1: 106,364 km (0.084 R)
• M2: 424,260 km (0.093 R)
• M3: 902,225 km (0.09 R)
• M4: 1,577,659 km (0.12 R)
• M5: 2,077,615 km (0.102 R)
• M6: 4,300,041 km (0.074 R)
• M7: 5,187,755 km (0.118 R)
• M8: 7,467,327 km (0.059 R)
• M9: 23,077,716 km (0.103 R)
• M10: 26,695,441 km (0.058 R)
• M11: 30,203,212 km (0.097 R)
• M12: 30,674,146 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 229.2

Radius: 7.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 8.14 AU - 8.6 AU

Year: 16424 Days

Day: 21.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,322,760 km

• M1: 94,546 km (0.072 R)
• M2: 628,161 km (0.081 R)
• M3: 879,187 km (0.093 R)
• M4: 1,210,396 km (0.047 R)
• M5: 2,233,347 km (0.072 R)
• M6: 2,512,945 km (0.062 R)
• M7: 3,618,324 km (0.052 R)
• M8: 6,048,092 km (0.078 R)
• M9: 9,832,320 km (0.069 R)
• M10: 10,280,814 km (0.083 R)
• M11: 10,795,282 km (0.117 R)
• M12: 11,931,178 km (0.052 R)
• M13: 13,874,155 km (0.082 R)
• M14: 15,413,368 km (0.093 R)
• M15: 24,120,113 km (0.081 R)
• M16: 31,276,726 km (0.041 R)
• M17: 32,355,476 km (0.057 R)
• M18: 34,816,062 km (0.074 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 10,463 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit