🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.1

Radius: 10.3

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.6 AU - 0.88 AU

Year: 411 Days

Day: 11.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,194,107 km

• M1: 128,205 km (0.059 R)
• M2: 586,872 km (0.114 R)
• M3: 1,087,876 km (0.067 R)
• M4: 1,421,629 km (0.119 R)
• M5: 1,877,752 km (0.058 R)
• M6: 2,278,226 km (0.107 R)
• M7: 2,715,800 km (0.059 R)
• M8: 3,131,831 km (0.043 R)
• M9: 3,578,381 km (0.106 R)
• M10: 4,066,968 km (0.117 R)
• M11: 4,472,827 km (0.112 R)
• M12: 5,025,591 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45

Radius: 9.3

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.66 AU - 1.06 AU

Year: 515 Days

Day: 8.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,194,107 km

• M1: 115,639 km (0.095 R)
• M2: 439,668 km (0.104 R)
• M3: 765,343 km (0.08 R)
• M4: 1,235,529 km (0.107 R)
• M5: 1,538,315 km (0.112 R)
• M6: 1,989,053 km (0.108 R)
• M7: 2,654,016 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.9

Radius: 13.5

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.75 AU - 0.99 AU

Year: 524 Days

Day: 7.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,194,107 km

• M1: 167,998 km (0.117 R)
• M2: 832,811 km (0.079 R)
• M3: 1,314,516 km (0.109 R)
• M4: 2,106,488 km (0.096 R)
• M5: 2,591,634 km (0.101 R)
• M6: 3,081,567 km (0.033 R)
• M7: 3,633,433 km (0.077 R)
• M8: 4,501,998 km (0.052 R)
• M9: 4,969,940 km (0.049 R)
• M10: 5,591,819 km (0.108 R)
• M11: 6,730,707 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.8

Radius: 9.8

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.9 AU - 0.98 AU

Year: 588 Days

Day: 6.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 115.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,194,107 km

• M1: 121,922 km (0.082 R)
• M2: 470,037 km (0.042 R)
• M3: 965,654 km (0.108 R)
• M4: 1,332,169 km (0.099 R)
• M5: 1,667,567 km (0.113 R)
• M6: 2,042,161 km (0.036 R)
• M7: 2,443,232 km (0.062 R)
• M8: 2,841,013 km (0.115 R)
• M9: 3,149,634 km (0.098 R)
• M10: 3,467,978 km (0.09 R)
• M11: 3,781,086 km (0.098 R)
• M12: 5,062,542 km (0.11 R)
• M13: 6,040,014 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.7

Radius: 10.5

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.9 AU - 1.22 AU

Year: 705 Days

Day: 10.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,194,107 km

• M1: 130,599 km (0.119 R)
• M2: 469,289 km (0.101 R)
• M3: 828,174 km (0.106 R)
• M4: 1,157,888 km (0.1 R)
• M5: 2,037,673 km (0.109 R)
• M6: 2,524,913 km (0.073 R)
• M7: 2,862,555 km (0.067 R)
• M8: 3,242,384 km (0.089 R)
• M9: 3,695,217 km (0.062 R)
• M10: 4,048,268 km (0.07 R)
• M11: 6,147,575 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.5

Radius: 14.9

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.09 AU - 1.69 AU

Year: 1058 Days

Day: 8.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 49,194,107 km

• M1: 190,737 km (0.054 R)
• M2: 778,358 km (0.063 R)
• M3: 1,339,200 km (0.058 R)
• M4: 2,296,028 km (0.098 R)
• M5: 4,839,042 km (0.033 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.1

Radius: 14.9

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.63 AU - 3.33 AU

Year: 3322 Days

Day: 7 Hours

Environment

Temp: -194 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,194,107 km

• M1: 185,352 km (0.09 R)
• M2: 2,582,209 km (0.114 R)
• M3: 3,665,746 km (0.102 R)
• M4: 4,714,128 km (0.111 R)
• M5: 5,746,353 km (0.08 R)
• M6: 7,966,087 km (0.08 R)
• M7: 11,391,279 km (0.081 R)
• M8: 12,144,505 km (0.109 R)
• M9: 13,797,561 km (0.105 R)
• M10: 14,654,009 km (0.06 R)
• M11: 15,799,779 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.5

Radius: 14.4

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.37 AU - 4.13 AU

Year: 4689 Days

Day: 6.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,194,107 km

• M1: 179,069 km (0.082 R)
• M2: 631,453 km (0.111 R)
• M3: 1,372,710 km (0.105 R)
• M4: 1,932,954 km (0.116 R)
• M5: 2,865,846 km (0.058 R)
• M6: 3,938,314 km (0.119 R)
• M7: 4,556,602 km (0.091 R)
• M8: 5,044,291 km (0.12 R)
• M9: 5,618,447 km (0.05 R)
• M10: 7,019,132 km (0.101 R)
• M11: 7,640,562 km (0.087 R)
• M12: 8,231,174 km (0.07 R)
• M13: 9,283,146 km (0.05 R)
• M14: 10,187,914 km (0.069 R)
• M15: 11,868,796 km (0.091 R)
• M16: 13,538,607 km (0.119 R)
• M17: 14,405,377 km (0.068 R)
• M18: 16,410,438 km (0.109 R)
• M19: 19,066,697 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.7

Radius: 8.4

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.34 AU - 6.02 AU

Year: 7612 Days

Day: 11.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,194,107 km

• M1: 104,719 km (0.082 R)
• M2: 417,528 km (0.103 R)
• M3: 1,638,545 km (0.061 R)
• M4: 2,519,976 km (0.069 R)
• M5: 2,868,838 km (0.104 R)
• M6: 3,355,630 km (0.062 R)
• M7: 3,710,027 km (0.108 R)
• M8: 4,870,308 km (0.08 R)
• M9: 8,925,458 km (0.081 R)
• M10: 15,636,717 km (0.061 R)
• M11: 16,189,182 km (0.117 R)
• M12: 31,013,135 km (0.095 R)
• M13: 31,495,588 km (0.12 R)
• M14: 31,885,141 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.7

Radius: 6.3

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 9.04 AU - 9.48 AU

Year: 18194 Days

Day: 19.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,194,107 km

• M1: 78,838 km (0.108 R)
• M2: 431,440 km (0.078 R)
• M3: 1,795,773 km (0.108 R)
• M4: 2,408,227 km (0.116 R)
• M5: 5,210,344 km (0.108 R)
• M6: 7,390,584 km (0.092 R)
• M7: 7,599,422 km (0.069 R)
• M8: 8,611,751 km (0.099 R)
• M9: 8,984,100 km (0.042 R)
• M10: 10,634,464 km (0.069 R)
• M11: 20,633,735 km (0.032 R)
• M12: 25,891,502 km (0.086 R)
• M13: 29,502,495 km (0.103 R)
• M14: 30,241,509 km (0.088 R)
• M15: 47,879,846 km (0.107 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: 356 - 14,704 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit