🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.4

Radius: 13.2

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.67 AU - 0.77 AU

Year: 407 Days

Day: 13.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,887,240 km

• M1: 164,258 km (0.081 R)
• M2: 586,573 km (0.048 R)
• M3: 1,156,541 km (0.112 R)
• M4: 1,787,395 km (0.099 R)
• M5: 2,235,890 km (0.084 R)
• M6: 2,690,368 km (0.118 R)
• M7: 3,412,926 km (0.054 R)
• M8: 4,033,757 km (0.117 R)
• M9: 4,670,446 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.8

Radius: 12.2

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.78 AU - 0.82 AU

Year: 477 Days

Day: 9.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 112.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,887,240 km

• M1: 151,692 km (0.079 R)
• M2: 552,764 km (0.112 R)
• M3: 976,276 km (0.113 R)
• M4: 1,367,025 km (0.105 R)
• M5: 1,753,137 km (0.103 R)
• M6: 2,455,051 km (0.108 R)
• M7: 2,877,216 km (0.099 R)
• M8: 3,464,986 km (0.111 R)
• M9: 4,158,522 km (0.113 R)
• M10: 4,807,926 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.9

Radius: 9.3

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.04 AU - 1.12 AU

Year: 748 Days

Day: 9.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,887,240 km

• M1: 115,789 km (0.104 R)
• M2: 552,166 km (0.072 R)
• M3: 1,413,101 km (0.079 R)
• M4: 1,915,601 km (0.028 R)
• M5: 2,219,135 km (0.058 R)
• M6: 3,540,084 km (0.089 R)
• M7: 3,929,038 km (0.087 R)
• M8: 6,319,164 km (0.103 R)
• M9: 6,872,227 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.9

Radius: 13.4

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.1 AU - 1.28 AU

Year: 866 Days

Day: 10.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,887,240 km

• M1: 169,345 km (0.099 R)
• M2: 643,720 km (0.103 R)
• M3: 1,152,801 km (0.068 R)
• M4: 1,689,259 km (0.115 R)
• M5: 2,504,119 km (0.075 R)
• M6: 3,074,087 km (0.112 R)
• M7: 3,648,094 km (0.1 R)
• M8: 4,323,528 km (0.066 R)
• M9: 5,132,254 km (0.088 R)
• M10: 6,798,774 km (0.117 R)
• M11: 7,266,717 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.6

Radius: 11.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.27 AU - 1.51 AU

Year: 1093 Days

Day: 10.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,887,240 km

• M1: 143,016 km (0.08 R)
• M2: 891,155 km (0.036 R)
• M3: 1,612,964 km (0.12 R)
• M4: 2,340,608 km (0.035 R)
• M5: 3,746,379 km (0.116 R)
• M6: 4,840,837 km (0.063 R)
• M7: 5,507,146 km (0.097 R)
• M8: 6,489,556 km (0.11 R)
• M9: 6,980,835 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.5

Radius: 12.3

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.16 AU - 3.38 AU

Year: 3943 Days

Day: 5.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,887,240 km

• M1: 153,637 km (0.118 R)
• M2: 580,290 km (0.081 R)
• M3: 1,018,163 km (0.105 R)
• M4: 2,060,711 km (0.06 R)
• M5: 2,510,851 km (0.106 R)
• M6: 2,936,008 km (0.084 R)
• M7: 4,022,537 km (0.047 R)
• M8: 4,633,794 km (0.035 R)
• M9: 6,191,856 km (0.086 R)
• M10: 7,546,016 km (0.062 R)
• M11: 8,329,759 km (0.087 R)
• M12: 8,972,132 km (0.097 R)
• M13: 9,852,067 km (0.107 R)
• M14: 11,143,695 km (0.097 R)
• M15: 12,065,517 km (0.103 R)
• M16: 15,303,413 km (0.093 R)
• M17: 19,930,625 km (0.082 R)
• M18: 24,337,479 km (0.086 R)
• M19: 24,872,591 km (0.035 R)
• M20: 26,045,887 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.9

Radius: 13.7

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.95 AU - 6.13 AU

Year: 8695 Days

Day: 8 Hours

Environment

Temp: -236 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,887,240 km

• M1: 170,542 km (0.1 R)
• M2: 723,007 km (0.101 R)
• M3: 1,403,527 km (0.081 R)
• M4: 2,349,584 km (0.114 R)
• M5: 2,914,017 km (0.083 R)
• M6: 3,429,830 km (0.078 R)
• M7: 4,732,678 km (0.073 R)
• M8: 6,554,332 km (0.118 R)
• M9: 7,331,492 km (0.045 R)
• M10: 8,462,303 km (0.09 R)
• M11: 9,025,539 km (0.083 R)
• M12: 10,179,238 km (0.076 R)
• M13: 12,778,650 km (0.113 R)
• M14: 14,781,466 km (0.106 R)
• M15: 15,472,160 km (0.09 R)
• M16: 16,581,727 km (0.114 R)
• M17: 17,884,126 km (0.104 R)
• M18: 22,774,331 km (0.101 R)
• M19: 25,258,404 km (0.086 R)
• M20: 27,353,073 km (0.099 R)
• M21: 29,758,756 km (0.08 R)
• M22: 30,456,930 km (0.078 R)
• M23: 31,165,874 km (0.109 R)
• M24: 33,466,091 km (0.071 R)
• M25: 34,112,653 km (0.109 R)
• M26: 40,190,515 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.6

Radius: 8

Gravity: 14.88 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 5.49 AU - 9.13 AU

Year: 13180 Days

Day: 22.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 59,887,240 km

• M1: 99,483 km (0.11 R)
• M2: 372,499 km (0.101 R)
• M3: 644,617 km (0.084 R)
• M4: 911,799 km (0.083 R)
• M5: 1,202,318 km (0.076 R)
• M6: 1,649,466 km (0.1 R)
• M7: 1,975,739 km (0.107 R)
• M8: 2,449,366 km (0.108 R)
• M9: 5,720,174 km (0.085 R)
• M10: 6,029,542 km (0.096 R)
• M11: 7,201,193 km (0.071 R)
• M12: 7,982,842 km (0.079 R)
• M13: 8,819,692 km (0.025 R)
• M14: 9,391,605 km (0.115 R)
• M15: 11,929,233 km (0.108 R)
• M16: 14,461,177 km (0.042 R)
• M17: 16,156,271 km (0.109 R)
• M18: 17,170,993 km (0.083 R)
• M19: 18,729,504 km (0.083 R)
• M20: 19,154,811 km (0.025 R)
• M21: 21,011,919 km (0.113 R)
• M22: 25,910,650 km (0.077 R)
• M23: 27,190,311 km (0.101 R)
• M24: 27,735,744 km (0.043 R)
• M25: 28,961,400 km (0.09 R)
• M26: 38,296,157 km (0.112 R)
• M27: 41,086,606 km (0.054 R)
• M28: 47,225,205 km (0.062 R)
• M29: 52,420,889 km (0.11 R)
• M30: 53,606,003 km (0.117 R)
• M31: 54,636,134 km (0.114 R)
• M32: 55,679,280 km (0.106 R)
• M33: 56,558,766 km (0.088 R)
• M34: 58,706,992 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 323.8

Radius: 6.7

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.26 AU - 8.44 AU

Year: 14667 Days

Day: 23.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,887,240 km

• M1: 83,476 km (0.095 R)
• M2: 516,262 km (0.115 R)
• M3: 1,162,375 km (0.05 R)
• M4: 1,544,748 km (0.065 R)
• M5: 2,128,778 km (0.066 R)
• M6: 2,365,890 km (0.117 R)
• M7: 2,682,140 km (0.101 R)
• M8: 6,170,463 km (0.036 R)
• M9: 6,694,056 km (0.045 R)
• M10: 6,927,279 km (0.102 R)
• M11: 13,729,045 km (0.106 R)
• M12: 18,343,990 km (0.105 R)
• M13: 20,059,728 km (0.048 R)
• M14: 25,465,746 km (0.075 R)
• M15: 26,516,671 km (0.04 R)
• M16: 28,704,540 km (0.059 R)
• M17: 33,890,201 km (0.063 R)
• M18: 40,048,696 km (0.089 R)
• M19: 44,681,144 km (0.071 R)
• M20: 45,370,790 km (0.06 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.4

Radius: 7.4

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.88 AU - 11.86 AU

Year: 22269 Days

Day: 21.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 59,887,240 km

• M1: 92,003 km (0.07 R)
• M2: 407,056 km (0.066 R)
• M3: 637,885 km (0.09 R)
• M4: 993,031 km (0.069 R)
• M5: 1,565,542 km (0.084 R)
• M6: 2,033,035 km (0.106 R)
• M7: 2,340,010 km (0.081 R)
• M8: 2,858,666 km (0.1 R)
• M9: 3,777,197 km (0.043 R)
• M10: 4,183,056 km (0.12 R)
• M11: 5,150,954 km (0.118 R)
• M12: 5,468,550 km (0.067 R)
• M13: 5,724,512 km (0.096 R)
• M14: 6,622,548 km (0.086 R)
• M15: 7,041,123 km (0.078 R)
• M16: 9,612,561 km (0.049 R)
• M17: 10,040,411 km (0.079 R)
• M18: 10,649,424 km (0.11 R)
• M19: 11,400,405 km (0.072 R)
• M20: 12,624,116 km (0.11 R)
• M21: 13,465,155 km (0.057 R)
• M22: 13,731,289 km (0.063 R)
• M23: 14,901,743 km (0.071 R)
• M24: 15,693,565 km (0.109 R)
• M25: 17,597,347 km (0.108 R)
• M26: 26,340,744 km (0.118 R)
• M27: 29,017,200 km (0.109 R)
• M28: 32,105,648 km (0.088 R)
• M29: 38,792,373 km (0.074 R)
• M30: 51,846,134 km (0.117 R)
• M31: 53,492,459 km (0.095 R)
• M32: 54,328,561 km (0.038 R)
• M33: 55,173,490 km (0.09 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 19,783 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit