🌌 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: 524.9

Radius: 8.5

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.65 AU - 0.95 AU

Year: 485 Days

Day: 12.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,307,291 km

• M1: 105,766 km (0.082 R)
• M2: 393,592 km (0.104 R)
• M3: 763,548 km (0.107 R)
• M4: 1,059,153 km (0.111 R)
• M5: 1,368,372 km (0.064 R)
• M6: 1,730,698 km (0.081 R)
• M7: 2,021,067 km (0.054 R)
• M8: 2,381,000 km (0.063 R)
• M9: 2,835,478 km (0.085 R)
• M10: 3,801,581 km (0.106 R)
• M11: 4,213,873 km (0.052 R)
• M12: 4,729,836 km (0.114 R)
• M13: 5,384,177 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.4

Radius: 14.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.85 AU - 0.97 AU

Year: 589 Days

Day: 6.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,307,291 km

• M1: 177,872 km (0.118 R)
• M2: 931,097 km (0.1 R)
• M3: 1,383,332 km (0.088 R)
• M4: 2,454,303 km (0.078 R)
• M5: 3,176,262 km (0.093 R)
• M6: 3,927,991 km (0.115 R)
• M7: 4,390,398 km (0.114 R)
• M8: 5,016,017 km (0.081 R)
• M9: 5,876,952 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 8

Gravity: 14.71 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.37 AU - 1.43 AU

Year: 1124 Days

Day: 11.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,307,291 km

• M1: 99,931 km (0.096 R)
• M2: 355,445 km (0.073 R)
• M3: 712,834 km (0.11 R)
• M4: 1,198,877 km (0.097 R)
• M5: 1,675,347 km (0.06 R)
• M6: 2,538,526 km (0.119 R)
• M7: 3,118,966 km (0.118 R)
• M8: 3,526,770 km (0.085 R)
• M9: 3,851,397 km (0.115 R)
• M10: 4,231,525 km (0.088 R)
• M11: 5,067,029 km (0.027 R)
• M12: 5,438,930 km (0.08 R)
• M13: 6,122,143 km (0.11 R)
• M14: 6,935,806 km (0.111 R)
• M15: 7,213,909 km (0.079 R)
• M16: 8,430,289 km (0.078 R)
• M17: 10,486,811 km (0.07 R)
• M18: 11,613,432 km (0.118 R)
• M19: 11,970,223 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.8

Radius: 9.5

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.21 AU - 1.61 AU

Year: 1136 Days

Day: 12.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,307,291 km

• M1: 118,182 km (0.117 R)
• M2: 500,255 km (0.083 R)
• M3: 959,371 km (0.113 R)
• M4: 1,473,539 km (0.115 R)
• M5: 2,215,694 km (0.089 R)
• M6: 2,665,385 km (0.055 R)
• M7: 3,121,360 km (0.087 R)
• M8: 3,496,850 km (0.055 R)
• M9: 3,918,118 km (0.103 R)
• M10: 4,306,025 km (0.099 R)
• M11: 4,881,079 km (0.052 R)
• M12: 5,311,472 km (0.067 R)
• M13: 5,767,148 km (0.108 R)
• M14: 6,205,768 km (0.119 R)
• M15: 6,644,090 km (0.116 R)
• M16: 7,150,030 km (0.091 R)
• M17: 8,238,953 km (0.071 R)
• M18: 8,554,305 km (0.073 R)
• M19: 9,378,141 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847

Radius: 11.5

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.89 AU - 2.41 AU

Year: 2138 Days

Day: 5.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,307,291 km

• M1: 143,016 km (0.103 R)
• M2: 631,004 km (0.088 R)
• M3: 1,152,502 km (0.107 R)
• M4: 1,896,602 km (0.087 R)
• M5: 2,397,455 km (0.081 R)
• M6: 3,314,341 km (0.106 R)
• M7: 4,265,783 km (0.105 R)
• M8: 4,663,863 km (0.12 R)
• M9: 5,086,776 km (0.113 R)
• M10: 6,139,347 km (0.102 R)
• M11: 6,703,780 km (0.042 R)
• M12: 9,142,524 km (0.042 R)
• M13: 9,879,593 km (0.06 R)
• M14: 11,234,501 km (0.039 R)
• M15: 13,762,555 km (0.107 R)
• M16: 14,496,183 km (0.073 R)
• M17: 15,596,027 km (0.055 R)
• M18: 16,191,576 km (0.118 R)
• M19: 16,905,607 km (0.093 R)
• M20: 18,069,777 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.2

Radius: 10.4

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.56 AU - 3.04 AU

Year: 3178 Days

Day: 13 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,307,291 km

• M1: 129,701 km (0.05 R)
• M2: 687,402 km (0.104 R)
• M3: 1,355,357 km (0.094 R)
• M4: 1,776,176 km (0.074 R)
• M5: 3,680,556 km (0.046 R)
• M6: 4,448,741 km (0.049 R)
• M7: 6,754,344 km (0.028 R)
• M8: 7,342,712 km (0.094 R)
• M9: 8,210,978 km (0.059 R)
• M10: 10,223,070 km (0.036 R)
• M11: 12,461,652 km (0.111 R)
• M12: 15,913,773 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.8

Radius: 8.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.07 AU - 3.83 AU

Year: 4346 Days

Day: 6.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 143.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,307,291 km

• M1: 149,299 km (0.117 R)
• M2: 1,767,499 km (0.062 R)
• M3: 2,846,249 km (0.108 R)
• M4: 6,760,627 km (0.073 R)
• M5: 10,943,832 km (0.086 R)
• M6: 11,431,970 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.6

Radius: 9.5

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.12 AU - 4.32 AU

Year: 5880 Days

Day: 6.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,307,291 km

• M1: 118,482 km (0.096 R)
• M2: 524,341 km (0.102 R)
• M3: 858,243 km (0.09 R)
• M4: 1,180,776 km (0.092 R)
• M5: 1,489,097 km (0.104 R)
• M6: 2,016,131 km (0.098 R)
• M7: 2,374,567 km (0.054 R)
• M8: 3,149,783 km (0.052 R)
• M9: 3,499,992 km (0.068 R)
• M10: 4,042,434 km (0.055 R)
• M11: 4,617,039 km (0.096 R)
• M12: 5,553,522 km (0.098 R)
• M13: 8,270,817 km (0.042 R)
• M14: 8,904,963 km (0.059 R)
• M15: 10,713,751 km (0.082 R)
• M16: 11,900,959 km (0.117 R)
• M17: 14,335,066 km (0.12 R)
• M18: 14,686,322 km (0.07 R)
• M19: 15,458,247 km (0.109 R)
• M20: 19,977,300 km (0.038 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.6

Radius: 12.5

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.09 AU - 5.27 AU

Year: 6867 Days

Day: 8.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,307,291 km

• M1: 155,731 km (0.079 R)
• M2: 956,529 km (0.069 R)
• M3: 1,475,783 km (0.056 R)
• M4: 1,945,820 km (0.057 R)
• M5: 2,421,391 km (0.085 R)
• M6: 3,652,282 km (0.118 R)
• M7: 4,290,018 km (0.098 R)
• M8: 4,722,356 km (0.063 R)
• M9: 6,227,909 km (0.082 R)
• M10: 7,543,473 km (0.036 R)
• M11: 8,068,412 km (0.115 R)
• M12: 9,508,441 km (0.063 R)
• M13: 12,599,581 km (0.054 R)
• M14: 15,346,198 km (0.079 R)
• M15: 16,595,789 km (0.103 R)
• M16: 17,911,951 km (0.101 R)
• M17: 18,595,614 km (0.082 R)
• M18: 25,867,267 km (0.06 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 17,440 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit