🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.2

Radius: 10.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.53 AU - 0.75 AU

Year: 360 Days

Day: 14.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,706,590 km

• M1: 135,536 km (0.112 R)
• M2: 511,774 km (0.119 R)
• M3: 929,152 km (0.107 R)
• M4: 1,314,367 km (0.056 R)
• M5: 1,912,908 km (0.112 R)
• M6: 2,276,431 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.4

Radius: 13.6

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.93 AU - 1.33 AU

Year: 844 Days

Day: 10.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,706,590 km

• M1: 169,195 km (0.098 R)
• M2: 600,635 km (0.061 R)
• M3: 1,205,310 km (0.108 R)
• M4: 1,846,636 km (0.119 R)
• M5: 2,386,834 km (0.045 R)
• M6: 3,381,061 km (0.094 R)
• M7: 4,426,152 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.7

Radius: 13.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.85 AU - 2.99 AU

Year: 2646 Days

Day: 11.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,706,590 km

• M1: 162,912 km (0.042 R)
• M2: 603,627 km (0.058 R)
• M3: 1,830,779 km (0.073 R)
• M4: 2,712,209 km (0.108 R)
• M5: 3,415,918 km (0.095 R)
• M6: 4,300,490 km (0.098 R)
• M7: 5,552,624 km (0.118 R)
• M8: 6,747,462 km (0.112 R)
• M9: 7,451,320 km (0.079 R)
• M10: 7,915,822 km (0.071 R)
• M11: 8,631,947 km (0.058 R)
• M12: 9,391,006 km (0.117 R)
• M13: 11,322,016 km (0.025 R)
• M14: 12,705,048 km (0.112 R)
• M15: 14,150,762 km (0.094 R)
• M16: 14,816,772 km (0.097 R)
• M17: 15,404,093 km (0.078 R)
• M18: 16,417,618 km (0.104 R)
• M19: 16,835,296 km (0.102 R)
• M20: 18,131,112 km (0.105 R)
• M21: 18,690,309 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.2

Radius: 10.1

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.96 AU - 3.26 AU

Year: 2964 Days

Day: 10.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,706,590 km

• M1: 126,111 km (0.069 R)
• M2: 457,171 km (0.097 R)
• M3: 880,982 km (0.094 R)
• M4: 1,276,668 km (0.042 R)
• M5: 1,924,277 km (0.116 R)
• M6: 2,337,916 km (0.096 R)
• M7: 2,843,108 km (0.116 R)
• M8: 3,166,089 km (0.065 R)
• M9: 3,707,035 km (0.116 R)
• M10: 4,073,101 km (0.056 R)
• M11: 5,627,423 km (0.089 R)
• M12: 8,862,178 km (0.101 R)
• M13: 11,181,244 km (0.102 R)
• M14: 12,935,279 km (0.074 R)
• M15: 14,415,700 km (0.106 R)
• M16: 14,967,117 km (0.093 R)
• M17: 16,059,032 km (0.036 R)
• M18: 16,870,900 km (0.082 R)
• M19: 17,596,450 km (0.098 R)
• M20: 19,049,942 km (0.091 R)
• M21: 19,898,162 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.9

Radius: 11.8

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.15 AU - 3.43 AU

Year: 3276 Days

Day: 9.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,706,590 km

• M1: 147,354 km (0.048 R)
• M2: 622,327 km (0.11 R)
• M3: 1,128,716 km (0.055 R)
• M4: 1,698,235 km (0.069 R)
• M5: 2,260,424 km (0.107 R)
• M6: 3,232,361 km (0.049 R)
• M7: 3,679,958 km (0.089 R)
• M8: 5,199,872 km (0.1 R)
• M9: 5,651,808 km (0.099 R)
• M10: 7,135,220 km (0.067 R)
• M11: 7,560,377 km (0.079 R)
• M12: 8,141,715 km (0.036 R)
• M13: 10,066,740 km (0.06 R)
• M14: 13,179,572 km (0.108 R)
• M15: 15,707,178 km (0.081 R)
• M16: 16,541,635 km (0.075 R)
• M17: 17,346,920 km (0.077 R)
• M18: 19,348,241 km (0.104 R)
• M19: 24,461,496 km (0.06 R)
• M20: 24,831,451 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.6

Radius: 8.6

Gravity: 12.8 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.88 AU - 4.2 AU

Year: 4682 Days

Day: 7.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,706,590 km

• M1: 113,844 km (0.107 R)
• M2: 477,367 km (0.098 R)
• M3: 881,431 km (0.114 R)
• M4: 1,566,738 km (0.109 R)
• M5: 1,881,343 km (0.075 R)
• M6: 2,206,868 km (0.12 R)
• M7: 3,189,277 km (0.089 R)
• M8: 3,502,236 km (0.077 R)
• M9: 4,618,236 km (0.109 R)
• M10: 5,020,056 km (0.088 R)
• M11: 5,986,308 km (0.112 R)
• M12: 6,865,345 km (0.09 R)
• M13: 8,015,454 km (0.096 R)
• M14: 8,676,228 km (0.091 R)
• M15: 9,205,804 km (0.116 R)
• M16: 9,930,456 km (0.063 R)
• M17: 12,742,747 km (0.058 R)
• M18: 13,534,419 km (0.072 R)
• M19: 13,914,996 km (0.105 R)
• M20: 14,414,652 km (0.098 R)
• M21: 18,852,922 km (0.118 R)
• M22: 19,123,245 km (0.119 R)
• M23: 22,120,738 km (0.034 R)
• M24: 22,878,002 km (0.105 R)
• M25: 25,090,405 km (0.11 R)
• M26: 26,416,740 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.1

Radius: 5.3

Gravity: 28.13 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 6.79 AU - 6.81 AU

Year: 12464 Days

Day: 21.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 71,706,590 km

• M1: 65,973 km (0.111 R)
• M2: 879,935 km (0.114 R)
• M3: 2,311,586 km (0.114 R)
• M4: 2,580,713 km (0.07 R)
• M5: 3,231,912 km (0.109 R)
• M6: 3,410,532 km (0.117 R)
• M7: 4,952,587 km (0.095 R)
• M8: 5,800,657 km (0.093 R)
• M9: 6,741,628 km (0.096 R)
• M10: 7,335,232 km (0.096 R)
• M11: 7,555,590 km (0.081 R)
• M12: 7,963,095 km (0.111 R)
• M13: 8,674,881 km (0.112 R)
• M14: 11,530,405 km (0.116 R)
• M15: 12,502,193 km (0.08 R)
• M16: 13,593,211 km (0.111 R)
• M17: 17,713,884 km (0.113 R)
• M18: 18,758,077 km (0.063 R)
• M19: 25,796,657 km (0.097 R)
• M20: 27,451,658 km (0.088 R)
• M21: 27,663,489 km (0.109 R)
• M22: 27,876,217 km (0.06 R)
• M23: 28,090,142 km (0.09 R)
• M24: 29,286,476 km (0.069 R)
• M25: 30,403,074 km (0.116 R)
• M26: 31,201,329 km (0.117 R)
• M27: 31,547,648 km (0.072 R)
• M28: 32,130,631 km (0.109 R)
• M29: 35,278,469 km (0.101 R)
• M30: 38,493,327 km (0.119 R)
• M31: 38,891,706 km (0.117 R)
• M32: 40,376,166 km (0.081 R)
• M33: 40,925,340 km (0.109 R)
• M34: 44,034,432 km (0.07 R)
• M35: 56,322,701 km (0.094 R)
• M36: 57,699,001 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.8

Radius: 8

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.8 AU - 8.78 AU

Year: 13836 Days

Day: 18.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,706,590 km

• M1: 99,483 km (0.09 R)
• M2: 499,806 km (0.11 R)
• M3: 930,050 km (0.116 R)
• M4: 1,523,804 km (0.117 R)
• M5: 1,889,272 km (0.078 R)
• M6: 2,423,186 km (0.108 R)
• M7: 3,396,171 km (0.106 R)
• M8: 4,815,855 km (0.117 R)
• M9: 5,775,675 km (0.093 R)
• M10: 7,246,670 km (0.118 R)
• M11: 14,229,749 km (0.107 R)
• M12: 16,737,309 km (0.079 R)
• M13: 19,218,240 km (0.093 R)
• M14: 20,386,899 km (0.082 R)
• M15: 24,805,272 km (0.089 R)
• M16: 25,169,543 km (0.096 R)
• M17: 27,917,655 km (0.028 R)
• M18: 30,338,299 km (0.08 R)
• M19: 31,920,146 km (0.057 R)
• M20: 34,226,198 km (0.101 R)
• M21: 35,018,917 km (0.083 R)
• M22: 35,823,903 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513.3

Radius: 3.9

Gravity: 33.75 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 7.66 AU - 11.68 AU

Year: 21137 Days

Day: 15.6 Hours

Environment

Temp: -245 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,706,590 km

• M1: 48,470 km (0.116 R)
• M2: 702,661 km (0.114 R)
• M3: 2,121,896 km (0.097 R)
• M4: 4,266,531 km (0.068 R)
• M5: 11,521,130 km (0.105 R)
• M6: 12,298,740 km (0.056 R)
• M7: 12,768,178 km (0.032 R)
• M8: 19,187,722 km (0.102 R)
• M9: 19,636,964 km (0.102 R)
• M10: 20,370,293 km (0.044 R)
• M11: 31,629,029 km (0.104 R)
• M12: 33,793,112 km (0.083 R)
• M13: 38,130,552 km (0.065 R)
• M14: 39,558,464 km (0.064 R)
• M15: 40,579,021 km (0.066 R)
• M16: 43,591,174 km (0.106 R)
• M17: 54,226,236 km (0.114 R)
• M18: 69,789,202 km (0.099 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: 441 - 20,309 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit