🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184

Radius: 12.5

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.57 AU - 0.93 AU

Year: 457 Days

Day: 11 Hours

Environment

Temp: -154 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,430,502 km

• M1: 155,432 km (0.097 R)
• M2: 676,930 km (0.071 R)
• M3: 1,183,319 km (0.076 R)
• M4: 1,841,251 km (0.078 R)
• M5: 3,793,503 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.6

Radius: 11.6

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.92 AU - 1.14 AU

Year: 735 Days

Day: 13 Hours

Environment

Temp: -183 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,430,502 km

• M1: 144,362 km (0.117 R)
• M2: 571,015 km (0.087 R)
• M3: 942,317 km (0.061 R)
• M4: 1,351,617 km (0.045 R)
• M5: 1,801,458 km (0.101 R)
• M6: 2,226,465 km (0.085 R)
• M7: 2,718,792 km (0.089 R)
• M8: 3,473,962 km (0.117 R)
• M9: 4,046,622 km (0.082 R)
• M10: 4,429,593 km (0.063 R)
• M11: 4,802,092 km (0.088 R)
• M12: 5,306,386 km (0.087 R)
• M13: 6,615,068 km (0.111 R)
• M14: 7,194,760 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.6

Radius: 14

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.3 AU - 1.38 AU

Year: 1090 Days

Day: 7.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,430,502 km

• M1: 180,864 km (0.072 R)
• M2: 622,178 km (0.038 R)
• M3: 1,199,326 km (0.107 R)
• M4: 1,731,446 km (0.045 R)
• M5: 2,198,042 km (0.083 R)
• M6: 2,774,891 km (0.045 R)
• M7: 3,822,824 km (0.1 R)
• M8: 4,609,709 km (0.064 R)
• M9: 5,061,644 km (0.038 R)
• M10: 5,564,143 km (0.09 R)
• M11: 7,201,043 km (0.118 R)
• M12: 7,656,419 km (0.119 R)
• M13: 8,348,309 km (0.089 R)
• M14: 9,584,137 km (0.065 R)
• M15: 11,237,343 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.5

Radius: 13.8

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.27 AU - 1.75 AU

Year: 1304 Days

Day: 8.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,430,502 km

• M1: 171,589 km (0.115 R)
• M2: 610,808 km (0.079 R)
• M3: 1,058,555 km (0.096 R)
• M4: 1,858,454 km (0.086 R)
• M5: 2,661,346 km (0.03 R)
• M6: 3,130,335 km (0.114 R)
• M7: 4,203,850 km (0.067 R)
• M8: 4,770,676 km (0.041 R)
• M9: 5,822,200 km (0.087 R)
• M10: 6,414,607 km (0.048 R)
• M11: 7,366,199 km (0.115 R)
• M12: 8,519,449 km (0.078 R)
• M13: 9,343,285 km (0.077 R)
• M14: 10,534,084 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.9

Radius: 10.5

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.52 AU - 3.58 AU

Year: 3744 Days

Day: 13.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,430,502 km

• M1: 130,599 km (0.051 R)
• M2: 605,572 km (0.099 R)
• M3: 1,048,232 km (0.074 R)
• M4: 2,540,770 km (0.103 R)
• M5: 3,533,502 km (0.093 R)
• M6: 5,879,645 km (0.04 R)
• M7: 7,126,394 km (0.108 R)
• M8: 7,927,939 km (0.095 R)
• M9: 8,717,367 km (0.076 R)
• M10: 10,532,887 km (0.091 R)
• M11: 12,228,130 km (0.073 R)
• M12: 12,633,391 km (0.117 R)
• M13: 14,694,700 km (0.046 R)
• M14: 15,204,529 km (0.114 R)
• M15: 15,726,027 km (0.087 R)
• M16: 16,098,227 km (0.058 R)
• M17: 17,645,966 km (0.045 R)
• M18: 18,338,754 km (0.052 R)
• M19: 19,411,969 km (0.079 R)
• M20: 20,779,743 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.1

Radius: 12.4

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.99 AU - 3.75 AU

Year: 4349 Days

Day: 8 Hours

Environment

Temp: -219 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,430,502 km

• M1: 154,235 km (0.108 R)
• M2: 617,091 km (0.12 R)
• M3: 1,457,981 km (0.08 R)
• M4: 2,088,685 km (0.113 R)
• M5: 2,499,780 km (0.106 R)
• M6: 3,000,933 km (0.104 R)
• M7: 3,391,085 km (0.097 R)
• M8: 4,252,619 km (0.086 R)
• M9: 6,776,185 km (0.112 R)
• M10: 7,288,558 km (0.095 R)
• M11: 7,792,403 km (0.055 R)
• M12: 8,427,596 km (0.088 R)
• M13: 9,445,011 km (0.06 R)
• M14: 11,320,370 km (0.112 R)
• M15: 11,859,820 km (0.104 R)
• M16: 16,469,529 km (0.12 R)
• M17: 17,576,254 km (0.099 R)
• M18: 19,233,499 km (0.099 R)
• M19: 23,357,314 km (0.087 R)
• M20: 24,455,063 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.4

Radius: 9.5

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.86 AU - 4.66 AU

Year: 6180 Days

Day: 10.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,430,502 km

• M1: 118,182 km (0.106 R)
• M2: 664,364 km (0.117 R)
• M3: 1,101,489 km (0.119 R)
• M4: 1,725,611 km (0.09 R)
• M5: 2,805,409 km (0.074 R)
• M6: 4,160,766 km (0.114 R)
• M7: 4,724,151 km (0.089 R)
• M8: 5,940,382 km (0.117 R)
• M9: 6,756,887 km (0.074 R)
• M10: 7,139,110 km (0.094 R)
• M11: 8,294,753 km (0.108 R)
• M12: 12,148,843 km (0.12 R)
• M13: 13,570,023 km (0.057 R)
• M14: 18,294,922 km (0.059 R)
• M15: 21,024,186 km (0.057 R)
• M16: 23,221,778 km (0.083 R)
• M17: 25,484,745 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 870.2

Radius: 5

Gravity: 34.81 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 7.14 AU - 7.66 AU

Year: 14150 Days

Day: 23.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 65,430,502 km

• M1: 62,233 km (0.109 R)
• M2: 219,460 km (0.102 R)
• M3: 711,787 km (0.106 R)
• M4: 965,804 km (0.106 R)
• M5: 1,146,069 km (0.064 R)
• M6: 1,306,438 km (0.108 R)
• M7: 1,559,558 km (0.083 R)
• M8: 2,475,994 km (0.063 R)
• M9: 2,700,092 km (0.103 R)
• M10: 3,214,858 km (0.058 R)
• M11: 4,700,515 km (0.096 R)
• M12: 5,115,798 km (0.11 R)
• M13: 5,442,819 km (0.106 R)
• M14: 6,848,890 km (0.115 R)
• M15: 7,023,620 km (0.084 R)
• M16: 8,835,699 km (0.106 R)
• M17: 10,878,608 km (0.113 R)
• M18: 12,619,478 km (0.097 R)
• M19: 12,948,743 km (0.098 R)
• M20: 14,465,964 km (0.062 R)
• M21: 18,431,355 km (0.046 R)
• M22: 20,165,943 km (0.09 R)
• M23: 26,017,613 km (0.1 R)
• M24: 26,336,855 km (0.079 R)
• M25: 26,658,490 km (0.106 R)
• M26: 29,442,357 km (0.101 R)
• M27: 31,442,181 km (0.081 R)
• M28: 33,155,675 km (0.074 R)
• M29: 35,841,107 km (0.077 R)
• M30: 40,348,341 km (0.058 R)
• M31: 40,633,026 km (0.095 R)
• M32: 47,398,739 km (0.119 R)
• M33: 54,183,002 km (0.107 R)
• M34: 59,353,853 km (0.072 R)
• M35: 65,430,518 km (0.048 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: 450 - 18,035 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit