🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.2

Radius: 11.8

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.6 AU - 0.8 AU

Year: 384 Days

Day: 12.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,453,835 km

• M1: 146,905 km (0.106 R)
• M2: 777,460 km (0.066 R)
• M3: 1,635,404 km (0.1 R)
• M4: 2,451,460 km (0.052 R)
• M5: 3,412,028 km (0.117 R)
• M6: 4,307,820 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.3

Radius: 12.5

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.63 AU - 0.79 AU

Year: 392 Days

Day: 6.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,453,835 km

• M1: 155,432 km (0.096 R)
• M2: 562,787 km (0.025 R)
• M3: 972,386 km (0.098 R)
• M4: 2,849,839 km (0.117 R)
• M5: 3,435,665 km (0.109 R)
• M6: 4,113,193 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.2

Radius: 13.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.72 AU - 0.8 AU

Year: 435 Days

Day: 13.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 81,453,835 km

• M1: 166,652 km (0.063 R)
• M2: 597,643 km (0.047 R)
• M3: 1,290,431 km (0.105 R)
• M4: 1,732,044 km (0.088 R)
• M5: 2,459,239 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.4

Radius: 14.7

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.84 AU - 1.36 AU

Year: 757 Days

Day: 5.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,453,835 km

• M1: 187,147 km (0.102 R)
• M2: 666,010 km (0.075 R)
• M3: 1,282,503 km (0.119 R)
• M4: 1,925,923 km (0.047 R)
• M5: 2,394,613 km (0.076 R)
• M6: 2,890,829 km (0.109 R)
• M7: 3,612,639 km (0.052 R)
• M8: 4,777,707 km (0.089 R)
• M9: 5,362,036 km (0.118 R)
• M10: 6,097,160 km (0.099 R)
• M11: 6,675,356 km (0.115 R)
• M12: 7,992,117 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.2

Radius: 13

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.91 AU - 5.61 AU

Year: 6813 Days

Day: 7.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,453,835 km

• M1: 161,715 km (0.055 R)
• M2: 637,885 km (0.118 R)
• M3: 1,045,839 km (0.089 R)
• M4: 4,022,088 km (0.064 R)
• M5: 4,497,510 km (0.066 R)
• M6: 5,220,367 km (0.101 R)
• M7: 5,690,404 km (0.115 R)
• M8: 6,466,218 km (0.09 R)
• M9: 7,235,151 km (0.095 R)
• M10: 7,942,001 km (0.057 R)
• M11: 10,635,511 km (0.036 R)
• M12: 11,239,587 km (0.12 R)
• M13: 11,760,487 km (0.081 R)
• M14: 14,549,440 km (0.089 R)
• M15: 17,544,389 km (0.118 R)
• M16: 28,766,474 km (0.108 R)
• M17: 30,139,333 km (0.077 R)
• M18: 34,519,858 km (0.073 R)
• M19: 35,067,985 km (0.072 R)
• M20: 38,363,327 km (0.041 R)
• M21: 39,307,439 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.4

Radius: 7.6

Gravity: 12.96 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.28 AU - 6.78 AU

Year: 9714 Days

Day: 24.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,453,835 km

• M1: 99,931 km (0.098 R)
• M2: 415,583 km (0.111 R)
• M3: 659,727 km (0.068 R)
• M4: 1,213,239 km (0.092 R)
• M5: 1,944,174 km (0.103 R)
• M6: 3,095,629 km (0.075 R)
• M7: 4,527,729 km (0.086 R)
• M8: 7,746,627 km (0.115 R)
• M9: 8,950,441 km (0.096 R)
• M10: 9,378,141 km (0.099 R)
• M11: 10,274,382 km (0.1 R)
• M12: 11,335,779 km (0.064 R)
• M13: 12,236,208 km (0.055 R)
• M14: 12,763,092 km (0.045 R)
• M15: 13,002,149 km (0.078 R)
• M16: 14,629,475 km (0.081 R)
• M17: 17,245,493 km (0.038 R)
• M18: 20,238,797 km (0.087 R)
• M19: 22,243,408 km (0.109 R)
• M20: 27,230,852 km (0.116 R)
• M21: 27,627,436 km (0.109 R)
• M22: 28,027,909 km (0.05 R)
• M23: 31,481,077 km (0.029 R)
• M24: 32,358,917 km (0.092 R)
• M25: 34,278,557 km (0.061 R)
• M26: 38,591,613 km (0.113 R)
• M27: 41,007,619 km (0.088 R)
• M28: 47,270,833 km (0.09 R)
• M29: 47,987,855 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.7

Radius: 7.3

Gravity: 12.08 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.66 AU - 7.82 AU

Year: 11479 Days

Day: 15 Hours

Environment

Temp: -213 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,453,835 km

• M1: 106,214 km (0.102 R)
• M2: 405,709 km (0.083 R)
• M3: 2,146,131 km (0.115 R)
• M4: 2,865,846 km (0.103 R)
• M5: 5,059,400 km (0.101 R)
• M6: 5,357,399 km (0.104 R)
• M7: 6,172,707 km (0.111 R)
• M8: 6,786,807 km (0.087 R)
• M9: 7,653,876 km (0.11 R)
• M10: 12,455,070 km (0.118 R)
• M11: 15,752,656 km (0.1 R)
• M12: 19,029,747 km (0.089 R)
• M13: 22,203,316 km (0.114 R)
• M14: 26,496,326 km (0.118 R)
• M15: 27,396,456 km (0.104 R)
• M16: 33,229,726 km (0.105 R)
• M17: 35,947,321 km (0.103 R)
• M18: 40,100,008 km (0.073 R)
• M19: 42,223,999 km (0.12 R)
• M20: 45,406,993 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.3

Radius: 3

Gravity: 65.92 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 9.87 AU - 12.05 AU

Year: 23803 Days

Day: 21.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 81,453,835 km

• M1: 37,399 km (0.027 R)
• M2: 137,032 km (0.063 R)
• M3: 389,852 km (0.079 R)
• M4: 520,152 km (0.06 R)
• M5: 916,137 km (0.086 R)
• M6: 1,121,086 km (0.048 R)
• M7: 1,219,971 km (0.119 R)
• M8: 1,675,646 km (0.068 R)
• M9: 1,863,092 km (0.094 R)
• M10: 2,257,581 km (0.112 R)
• M11: 2,832,187 km (0.071 R)
• M12: 3,468,576 km (0.068 R)
• M13: 3,588,255 km (0.06 R)
• M14: 4,611,504 km (0.065 R)
• M15: 4,792,966 km (0.068 R)
• M16: 5,566,836 km (0.081 R)
• M17: 6,069,335 km (0.08 R)
• M18: 6,738,935 km (0.114 R)
• M19: 7,211,814 km (0.107 R)
• M20: 8,653,190 km (0.096 R)
• M21: 13,805,789 km (0.079 R)
• M22: 13,955,836 km (0.11 R)
• M23: 16,087,605 km (0.069 R)
• M24: 16,673,730 km (0.077 R)
• M25: 18,699,734 km (0.118 R)
• M26: 20,492,365 km (0.095 R)
• M27: 24,196,857 km (0.053 R)
• M28: 26,551,528 km (0.051 R)
• M29: 26,783,404 km (0.117 R)
• M30: 31,970,711 km (0.085 R)
• M31: 35,777,228 km (0.107 R)
• M32: 38,822,443 km (0.115 R)
• M33: 38,971,592 km (0.12 R)
• M34: 44,927,831 km (0.071 R)
• M35: 46,254,465 km (0.1 R)
• M36: 48,812,140 km (0.118 R)
• M37: 48,985,823 km (0.043 R)
• M38: 50,924,761 km (0.054 R)
• M39: 51,103,530 km (0.088 R)
• M40: 55,520,407 km (0.113 R)
• M41: 72,520,560 km (0.114 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 502 - 13,883 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit