🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.9

Radius: 11.5

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.53 AU - 0.65 AU

Year: 302 Days

Day: 6.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,728,927 km

• M1: 143,165 km (0.118 R)
• M2: 521,498 km (0.062 R)
• M3: 1,269,488 km (0.061 R)
• M4: 1,789,789 km (0.094 R)
• M5: 2,183,680 km (0.117 R)
• M6: 2,756,341 km (0.057 R)
• M7: 3,383,605 km (0.082 R)
• M8: 4,318,591 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.1

Radius: 11.4

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.17 AU - 1.47 AU

Year: 1011 Days

Day: 12.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,728,927 km

• M1: 141,819 km (0.032 R)
• M2: 534,812 km (0.1 R)
• M3: 1,028,785 km (0.117 R)
• M4: 1,698,684 km (0.086 R)
• M5: 3,244,179 km (0.05 R)
• M6: 3,615,481 km (0.081 R)
• M7: 3,983,642 km (0.085 R)
• M8: 4,393,689 km (0.043 R)
• M9: 5,357,549 km (0.111 R)
• M10: 5,797,067 km (0.118 R)
• M11: 6,152,960 km (0.095 R)
• M12: 6,703,181 km (0.091 R)
• M13: 7,333,886 km (0.093 R)
• M14: 7,801,230 km (0.111 R)
• M15: 8,741,303 km (0.045 R)
• M16: 9,182,766 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.7

Radius: 12.5

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.4 AU - 1.76 AU

Year: 1324 Days

Day: 8.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,728,927 km

• M1: 155,432 km (0.077 R)
• M2: 591,809 km (0.103 R)
• M3: 995,723 km (0.073 R)
• M4: 1,461,122 km (0.06 R)
• M5: 2,362,599 km (0.066 R)
• M6: 2,781,473 km (0.114 R)
• M7: 3,275,595 km (0.108 R)
• M8: 5,052,668 km (0.082 R)
• M9: 5,569,230 km (0.071 R)
• M10: 6,239,727 km (0.118 R)
• M11: 6,729,959 km (0.118 R)
• M12: 7,158,109 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.5

Radius: 9.9

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.46 AU - 2.24 AU

Year: 1678 Days

Day: 9.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,728,927 km

• M1: 124,615 km (0.073 R)
• M2: 548,575 km (0.113 R)
• M3: 2,258,928 km (0.094 R)
• M4: 2,668,527 km (0.036 R)
• M5: 3,881,466 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.8

Radius: 11.6

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.14 AU - 3.44 AU

Year: 3108 Days

Day: 8.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,728,927 km

• M1: 145,708 km (0.106 R)
• M2: 718,668 km (0.086 R)
• M3: 1,270,984 km (0.095 R)
• M4: 2,023,162 km (0.096 R)
• M5: 3,663,053 km (0.109 R)
• M6: 4,401,169 km (0.083 R)
• M7: 6,516,334 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.4

Radius: 12.7

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.25 AU - 5.73 AU

Year: 7433 Days

Day: 8.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,728,927 km

• M1: 160,369 km (0.071 R)
• M2: 560,543 km (0.076 R)
• M3: 1,291,329 km (0.112 R)
• M4: 1,770,192 km (0.093 R)
• M5: 2,367,685 km (0.107 R)
• M6: 2,925,087 km (0.063 R)
• M7: 3,700,004 km (0.096 R)
• M8: 4,530,721 km (0.063 R)
• M9: 4,950,343 km (0.105 R)
• M10: 7,311,596 km (0.08 R)
• M11: 9,990,146 km (0.086 R)
• M12: 12,236,956 km (0.067 R)
• M13: 12,641,768 km (0.061 R)
• M14: 13,107,915 km (0.118 R)
• M15: 14,295,872 km (0.115 R)
• M16: 17,771,329 km (0.098 R)
• M17: 18,488,801 km (0.106 R)
• M18: 19,498,287 km (0.104 R)
• M19: 21,116,936 km (0.085 R)
• M20: 29,116,982 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.3

Radius: 6.3

Gravity: 22.03 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.18 AU - 6.58 AU

Year: 10746 Days

Day: 23.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 42,728,927 km

• M1: 78,539 km (0.106 R)
• M2: 277,354 km (0.112 R)
• M3: 642,672 km (0.097 R)
• M4: 2,035,877 km (0.033 R)
• M5: 2,749,010 km (0.075 R)
• M6: 3,460,947 km (0.092 R)
• M7: 4,349,109 km (0.1 R)
• M8: 5,380,437 km (0.102 R)
• M9: 7,562,172 km (0.083 R)
• M10: 7,870,942 km (0.049 R)
• M11: 8,187,940 km (0.114 R)
• M12: 8,847,816 km (0.056 R)
• M13: 10,219,330 km (0.119 R)
• M14: 10,927,825 km (0.088 R)
• M15: 12,687,246 km (0.063 R)
• M16: 13,894,351 km (0.093 R)
• M17: 14,424,825 km (0.114 R)
• M18: 14,627,231 km (0.049 R)
• M19: 17,586,726 km (0.093 R)
• M20: 21,531,173 km (0.077 R)
• M21: 22,241,314 km (0.102 R)
• M22: 23,708,121 km (0.05 R)
• M23: 27,759,381 km (0.107 R)
• M24: 29,675,131 km (0.035 R)
• M25: 31,337,463 km (0.041 R)
• M26: 32,248,963 km (0.094 R)
• M27: 34,005,391 km (0.08 R)
• M28: 34,484,404 km (0.045 R)
• M29: 36,196,252 km (0.079 R)
• M30: 37,453,173 km (0.119 R)
• M31: 39,524,206 km (0.058 R)
• M32: 40,186,775 km (0.118 R)
• M33: 42,772,275 km (0.066 R)
• M34: 44,461,086 km (0.111 R)
• M35: 53,253,401 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 603.6

Radius: 3.2

Gravity: 58.95 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.02 AU - 7.86 AU

Year: 10898 Days

Day: 24.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,728,927 km

• M1: 41,588 km (0.117 R)
• M2: 384,018 km (0.091 R)
• M3: 496,515 km (0.096 R)
• M4: 1,819,260 km (0.118 R)
• M5: 2,289,595 km (0.108 R)
• M6: 5,973,293 km (0.116 R)
• M7: 6,154,606 km (0.048 R)
• M8: 7,361,412 km (0.051 R)
• M9: 10,179,686 km (0.097 R)
• M10: 14,599,406 km (0.065 R)
• M11: 17,665,115 km (0.115 R)
• M12: 25,595,597 km (0.118 R)
• M13: 28,045,113 km (0.064 R)
• M14: 31,730,157 km (0.105 R)
• M15: 33,064,271 km (0.041 R)
• M16: 38,900,832 km (0.075 R)
• M17: 39,532,285 km (0.108 R)
• M18: 41,075,835 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.4

Radius: 7.7

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 9.42 AU - 11.72 AU

Year: 22916 Days

Day: 18.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,728,927 km

• M1: 97,388 km (0.06 R)
• M2: 457,769 km (0.091 R)
• M3: 707,448 km (0.086 R)
• M4: 1,103,583 km (0.053 R)
• M5: 2,185,924 km (0.104 R)
• M6: 4,138,176 km (0.067 R)
• M7: 4,959,469 km (0.074 R)
• M8: 5,456,882 km (0.11 R)
• M9: 5,953,098 km (0.102 R)
• M10: 7,867,053 km (0.095 R)
• M11: 13,091,310 km (0.105 R)
• M12: 16,817,493 km (0.118 R)
• M13: 18,443,772 km (0.05 R)
• M14: 34,944,118 km (0.066 R)
• M15: 41,462,695 km (0.107 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: 162 - 14,505 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit