🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.7

Radius: 8.3

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.61 AU - 0.95 AU

Year: 445 Days

Day: 7.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,789,318 km

• M1: 103,372 km (0.055 R)
• M2: 461,809 km (0.064 R)
• M3: 1,040,752 km (0.057 R)
• M4: 1,380,489 km (0.08 R)
• M5: 2,204,025 km (0.094 R)
• M6: 2,499,332 km (0.032 R)
• M7: 2,771,899 km (0.116 R)
• M8: 3,074,835 km (0.061 R)
• M9: 3,918,267 km (0.111 R)
• M10: 4,222,699 km (0.08 R)
• M11: 4,807,776 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.3

Radius: 10.7

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.89 AU - 1.29 AU

Year: 735 Days

Day: 11.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,789,318 km

• M1: 133,142 km (0.109 R)
• M2: 466,745 km (0.094 R)
• M3: 889,808 km (0.119 R)
• M4: 1,234,332 km (0.031 R)
• M5: 2,332,380 km (0.057 R)
• M6: 2,747,066 km (0.077 R)
• M7: 3,347,252 km (0.118 R)
• M8: 4,192,630 km (0.071 R)
• M9: 4,874,796 km (0.098 R)
• M10: 6,072,776 km (0.063 R)
• M11: 7,156,463 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.5

Radius: 12.8

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.91 AU - 1.43 AU

Year: 817 Days

Day: 10.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,789,318 km

• M1: 159,172 km (0.051 R)
• M2: 561,740 km (0.084 R)
• M3: 1,092,513 km (0.091 R)
• M4: 1,701,975 km (0.116 R)
• M5: 3,129,737 km (0.107 R)
• M6: 3,561,925 km (0.11 R)
• M7: 3,962,100 km (0.051 R)
• M8: 4,707,546 km (0.115 R)
• M9: 5,260,908 km (0.118 R)
• M10: 6,143,087 km (0.086 R)
• M11: 6,722,480 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787

Radius: 11.6

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.92 AU - 2.18 AU

Year: 1895 Days

Day: 11.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,789,318 km

• M1: 144,362 km (0.054 R)
• M2: 512,522 km (0.085 R)
• M3: 1,038,209 km (0.084 R)
• M4: 1,915,152 km (0.08 R)
• M5: 2,547,502 km (0.112 R)
• M6: 4,230,329 km (0.101 R)
• M7: 4,737,166 km (0.109 R)
• M8: 5,329,873 km (0.069 R)
• M9: 7,669,584 km (0.101 R)
• M10: 8,456,768 km (0.104 R)
• M11: 8,935,032 km (0.11 R)
• M12: 10,551,587 km (0.065 R)
• M13: 11,564,065 km (0.099 R)
• M14: 12,034,401 km (0.084 R)
• M15: 13,266,339 km (0.115 R)
• M16: 14,044,846 km (0.094 R)
• M17: 14,535,378 km (0.085 R)
• M18: 16,172,876 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.5

Radius: 9.8

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.99 AU - 2.35 AU

Year: 2064 Days

Day: 8.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,789,318 km

• M1: 127,607 km (0.062 R)
• M2: 555,307 km (0.062 R)
• M3: 1,294,321 km (0.099 R)
• M4: 1,606,681 km (0.053 R)
• M5: 1,919,191 km (0.062 R)
• M6: 2,544,660 km (0.077 R)
• M7: 3,098,770 km (0.038 R)
• M8: 4,062,031 km (0.111 R)
• M9: 5,133,002 km (0.118 R)
• M10: 5,908,667 km (0.061 R)
• M11: 6,569,590 km (0.109 R)
• M12: 7,053,540 km (0.055 R)
• M13: 7,771,011 km (0.119 R)
• M14: 8,285,029 km (0.107 R)
• M15: 9,562,595 km (0.051 R)
• M16: 11,372,729 km (0.095 R)
• M17: 11,753,456 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.1

Radius: 9.9

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.13 AU - 3.05 AU

Year: 2691 Days

Day: 10 Hours

Environment

Temp: -204 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,789,318 km

• M1: 123,119 km (0.12 R)
• M2: 439,219 km (0.087 R)
• M3: 1,096,104 km (0.099 R)
• M4: 1,559,109 km (0.048 R)
• M5: 1,878,500 km (0.084 R)
• M6: 2,241,874 km (0.102 R)
• M7: 2,899,955 km (0.1 R)
• M8: 4,403,563 km (0.118 R)
• M9: 5,435,040 km (0.085 R)
• M10: 6,047,494 km (0.108 R)
• M11: 6,790,696 km (0.07 R)
• M12: 7,229,168 km (0.056 R)
• M13: 7,717,605 km (0.111 R)
• M14: 8,931,890 km (0.09 R)
• M15: 11,165,087 km (0.104 R)
• M16: 11,818,531 km (0.116 R)
• M17: 12,197,163 km (0.095 R)
• M18: 13,839,449 km (0.116 R)
• M19: 16,808,368 km (0.096 R)
• M20: 19,180,691 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.9

Radius: 14.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 5.12 AU - 6.44 AU

Year: 8972 Days

Day: 6.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,789,318 km

• M1: 184,305 km (0.11 R)
• M2: 738,864 km (0.12 R)
• M3: 1,302,848 km (0.084 R)
• M4: 2,430,068 km (0.112 R)
• M5: 3,561,477 km (0.083 R)
• M6: 5,051,920 km (0.109 R)
• M7: 5,885,779 km (0.108 R)
• M8: 7,327,304 km (0.082 R)
• M9: 8,131,243 km (0.12 R)
• M10: 9,182,467 km (0.107 R)
• M11: 11,333,983 km (0.031 R)
• M12: 13,803,545 km (0.09 R)
• M13: 15,501,481 km (0.099 R)
• M14: 16,971,579 km (0.068 R)
• M15: 19,309,046 km (0.111 R)
• M16: 21,683,463 km (0.085 R)
• M17: 22,198,080 km (0.054 R)
• M18: 25,839,891 km (0.095 R)
• M19: 27,802,615 km (0.107 R)
• M20: 39,381,041 km (0.112 R)
• M21: 43,180,079 km (0.06 R)
• M22: 43,995,687 km (0.115 R)
• M23: 45,797,743 km (0.09 R)
• M24: 48,228,110 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 887.4

Radius: 6.4

Gravity: 21.67 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 9.18 AU - 11.46 AU

Year: 21406 Days

Day: 24.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 86,789,318 km

• M1: 79,586 km (0.085 R)
• M2: 297,700 km (0.077 R)
• M3: 1,450,800 km (0.105 R)
• M4: 3,083,661 km (0.09 R)
• M5: 4,913,093 km (0.103 R)
• M6: 5,183,716 km (0.113 R)
• M7: 5,546,191 km (0.118 R)
• M8: 6,735,943 km (0.067 R)
• M9: 7,167,832 km (0.117 R)
• M10: 7,928,388 km (0.102 R)
• M11: 9,082,087 km (0.061 R)
• M12: 10,918,251 km (0.102 R)
• M13: 19,858,070 km (0.102 R)
• M14: 20,945,647 km (0.101 R)
• M15: 21,864,477 km (0.093 R)
• M16: 23,455,301 km (0.048 R)
• M17: 26,746,902 km (0.106 R)
• M18: 30,076,652 km (0.105 R)
• M19: 35,502,118 km (0.03 R)
• M20: 38,899,336 km (0.107 R)
• M21: 42,024,286 km (0.108 R)
• M22: 43,483,613 km (0.06 R)
• M23: 44,808,751 km (0.103 R)
• M24: 45,990,275 km (0.1 R)
• M25: 47,888,522 km (0.118 R)
• M26: 49,301,474 km (0.06 R)
• M27: 54,085,465 km (0.048 R)
• M28: 56,004,955 km (0.114 R)
• M29: 59,979,321 km (0.075 R)
• M30: 60,796,126 km (0.074 R)
• M31: 63,925,265 km (0.113 R)
• M32: 64,563,599 km (0.077 R)
• M33: 68,483,960 km (0.06 R)
• M34: 71,183,753 km (0.098 R)
• M35: 73,720,335 km (0.088 R)
• M36: 74,892,883 km (0.074 R)
• M37: 80,447,302 km (0.092 R)
• M38: 82,190,716 km (0.067 R)
• M39: 86,011,296 km (0.112 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 11,779 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit