🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.3

Radius: 13.3

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.78 AU - 0.8 AU

Year: 453 Days

Day: 11.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,864,254 km

• M1: 165,455 km (0.06 R)
• M2: 587,920 km (0.103 R)
• M3: 1,114,803 km (0.115 R)
• M4: 1,529,788 km (0.026 R)
• M5: 1,960,181 km (0.114 R)
• M6: 2,731,208 km (0.116 R)
• M7: 4,230,478 km (0.037 R)
• M8: 4,831,263 km (0.051 R)
• M9: 5,488,447 km (0.119 R)
• M10: 5,953,397 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.6

Radius: 10.7

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.83 AU - 1.03 AU

Year: 579 Days

Day: 13.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,864,254 km

• M1: 133,292 km (0.07 R)
• M2: 593,604 km (0.106 R)
• M3: 1,183,020 km (0.05 R)
• M4: 1,615,807 km (0.04 R)
• M5: 2,265,510 km (0.066 R)
• M6: 3,310,900 km (0.077 R)
• M7: 3,998,153 km (0.094 R)
• M8: 4,391,296 km (0.084 R)
• M9: 4,890,504 km (0.112 R)
• M10: 6,191,257 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.9

Radius: 9.8

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.23 AU - 1.25 AU

Year: 892 Days

Day: 6.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,864,254 km

• M1: 121,922 km (0.077 R)
• M2: 489,634 km (0.073 R)
• M3: 906,264 km (0.099 R)
• M4: 1,383,631 km (0.108 R)
• M5: 1,978,133 km (0.049 R)
• M6: 3,224,881 km (0.066 R)
• M7: 6,098,956 km (0.044 R)
• M8: 7,597,477 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.1

Radius: 8.3

Gravity: 8.3 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.47 AU - 2.63 AU

Year: 2629 Days

Day: 12.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,864,254 km

• M1: 114,143 km (0.071 R)
• M2: 430,692 km (0.063 R)
• M3: 777,311 km (0.12 R)
• M4: 1,146,368 km (0.112 R)
• M5: 1,410,409 km (0.099 R)
• M6: 1,694,046 km (0.064 R)
• M7: 2,015,981 km (0.113 R)
• M8: 2,392,220 km (0.101 R)
• M9: 2,988,068 km (0.062 R)
• M10: 3,532,903 km (0.111 R)
• M11: 4,243,792 km (0.112 R)
• M12: 4,557,948 km (0.083 R)
• M13: 5,069,722 km (0.087 R)
• M14: 5,327,779 km (0.119 R)
• M15: 5,743,960 km (0.072 R)
• M16: 8,318,689 km (0.102 R)
• M17: 9,290,177 km (0.073 R)
• M18: 9,821,399 km (0.036 R)
• M19: 10,260,918 km (0.106 R)
• M20: 11,739,394 km (0.111 R)
• M21: 12,360,524 km (0.032 R)
• M22: 14,215,986 km (0.112 R)
• M23: 15,017,382 km (0.086 R)
• M24: 16,607,009 km (0.102 R)
• M25: 17,870,513 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.3

Radius: 14.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.81 AU - 3.81 AU

Year: 3888 Days

Day: 14.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,864,254 km

• M1: 183,557 km (0.056 R)
• M2: 669,899 km (0.113 R)
• M3: 1,187,508 km (0.052 R)
• M4: 1,650,663 km (0.105 R)
• M5: 2,437,099 km (0.108 R)
• M6: 3,799,337 km (0.074 R)
• M7: 4,488,983 km (0.093 R)
• M8: 5,233,981 km (0.054 R)
• M9: 5,765,801 km (0.071 R)
• M10: 6,615,816 km (0.105 R)
• M11: 7,443,990 km (0.119 R)
• M12: 9,108,416 km (0.085 R)
• M13: 13,992,188 km (0.116 R)
• M14: 15,414,265 km (0.027 R)
• M15: 17,416,633 km (0.11 R)
• M16: 19,587,148 km (0.032 R)
• M17: 21,294,509 km (0.041 R)
• M18: 24,229,769 km (0.095 R)
• M19: 25,634,792 km (0.111 R)
• M20: 26,438,581 km (0.058 R)
• M21: 26,928,814 km (0.053 R)
• M22: 27,843,455 km (0.036 R)
• M23: 28,436,162 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160.3

Radius: 3.9

Gravity: 10.54 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.52 AU - 8.82 AU

Year: 15078 Days

Day: 19.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,864,254 km

• M1: 52,509 km (0.111 R)
• M2: 294,109 km (0.1 R)
• M3: 526,734 km (0.088 R)
• M4: 770,429 km (0.055 R)
• M5: 927,656 km (0.095 R)
• M6: 1,215,333 km (0.101 R)
• M7: 1,343,538 km (0.086 R)
• M8: 1,506,899 km (0.101 R)
• M9: 1,828,385 km (0.111 R)
• M10: 2,663,740 km (0.04 R)
• M11: 2,984,478 km (0.057 R)
• M12: 3,241,487 km (0.083 R)
• M13: 3,630,740 km (0.109 R)
• M14: 5,693,845 km (0.073 R)
• M15: 6,644,240 km (0.115 R)
• M16: 7,045,013 km (0.065 R)
• M17: 8,469,483 km (0.1 R)
• M18: 9,981,020 km (0.116 R)
• M19: 12,791,815 km (0.071 R)
• M20: 17,620,535 km (0.054 R)
• M21: 18,105,381 km (0.101 R)
• M22: 18,527,995 km (0.072 R)
• M23: 19,319,817 km (0.114 R)
• M24: 21,989,391 km (0.096 R)
• M25: 26,125,024 km (0.097 R)
• M26: 30,156,687 km (0.074 R)
• M27: 31,351,525 km (0.074 R)
• M28: 33,941,513 km (0.086 R)
• M29: 36,670,627 km (0.09 R)
• M30: 37,460,204 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 145.1

Radius: 3.3

Gravity: 13.32 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.98 AU - 9.72 AU

Year: 15579 Days

Day: 21.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,864,254 km

• M1: 40,990 km (0.053 R)
• M2: 264,788 km (0.119 R)
• M3: 526,285 km (0.059 R)
• M4: 633,248 km (0.101 R)
• M5: 1,906,326 km (0.086 R)
• M6: 2,129,226 km (0.064 R)
• M7: 2,944,236 km (0.11 R)
• M8: 3,308,507 km (0.063 R)
• M9: 3,972,871 km (0.118 R)
• M10: 5,849,277 km (0.107 R)
• M11: 6,849,787 km (0.051 R)
• M12: 7,257,442 km (0.033 R)
• M13: 7,448,029 km (0.105 R)
• M14: 12,532,861 km (0.115 R)
• M15: 17,552,767 km (0.115 R)
• M16: 18,525,452 km (0.097 R)
• M17: 19,828,151 km (0.095 R)
• M18: 26,991,345 km (0.109 R)
• M19: 31,395,058 km (0.116 R)
• M20: 38,284,189 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.2

Radius: 6.5

Gravity: 12.19 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 10.08 AU - 11.9 AU

Year: 23524 Days

Day: 15.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,864,254 km

• M1: 402,269 km (0.119 R)
• M2: 1,357,900 km (0.052 R)
• M3: 2,700,541 km (0.1 R)
• M4: 3,028,609 km (0.118 R)
• M5: 4,175,127 km (0.064 R)
• M6: 5,467,353 km (0.102 R)
• M7: 6,822,411 km (0.12 R)
• M8: 14,495,435 km (0.093 R)
• M9: 22,224,260 km (0.082 R)
• M10: 22,731,396 km (0.054 R)
• M11: 28,471,317 km (0.082 R)
• M12: 31,039,613 km (0.116 R)
• M13: 37,055,093 km (0.069 R)
• M14: 46,882,776 km (0.084 R)
• M15: 48,900,402 km (0.116 R)
• M16: 52,569,141 km (0.107 R)
• M17: 53,107,693 km (0.051 R)
• M18: 53,649,985 km (0.089 R)
• M19: 57,740,440 km (0.115 R)
• M20: 58,313,848 km (0.046 R)
• M21: 69,510,651 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.9

Radius: 8

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 10.54 AU - 11.98 AU

Year: 24396 Days

Day: 21.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 70,864,254 km

• M1: 99,632 km (0.103 R)
• M2: 423,212 km (0.11 R)
• M3: 812,616 km (0.075 R)
• M4: 1,127,519 km (0.083 R)
• M5: 1,619,846 km (0.038 R)
• M6: 2,010,147 km (0.086 R)
• M7: 3,265,422 km (0.083 R)
• M8: 4,731,033 km (0.114 R)
• M9: 5,379,839 km (0.11 R)
• M10: 6,293,433 km (0.104 R)
• M11: 6,677,750 km (0.066 R)
• M12: 7,635,625 km (0.087 R)
• M13: 8,023,682 km (0.071 R)
• M14: 8,839,289 km (0.111 R)
• M15: 10,754,441 km (0.109 R)
• M16: 11,242,430 km (0.108 R)
• M17: 12,262,537 km (0.06 R)
• M18: 12,930,642 km (0.085 R)
• M19: 13,764,201 km (0.114 R)
• M20: 16,320,230 km (0.093 R)
• M21: 18,047,936 km (0.059 R)
• M22: 21,098,236 km (0.108 R)
• M23: 23,958,099 km (0.119 R)
• M24: 26,292,873 km (0.109 R)
• M25: 28,427,784 km (0.106 R)
• M26: 32,405,891 km (0.08 R)
• M27: 34,593,311 km (0.034 R)
• M28: 36,059,968 km (0.085 R)
• M29: 37,846,317 km (0.112 R)
• M30: 40,561,817 km (0.099 R)
• M31: 46,377,733 km (0.093 R)
• M32: 47,181,972 km (0.12 R)
• M33: 50,323,527 km (0.07 R)
• M34: 59,818,504 km (0.077 R)
• M35: 61,540,974 km (0.041 R)
• M36: 64,684,623 km (0.082 R)
• M37: 68,347,228 km (0.075 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: 507 - 16,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit