🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.48 AU - 0.64 AU

Year: 271 Days

Day: 21.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.3

Radius: 12.7

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.67 AU - 0.93 AU

Year: 462 Days

Day: 13.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,164,435 km

• M1: 158,424 km (0.116 R)
• M2: 575,653 km (0.043 R)
• M3: 1,330,972 km (0.088 R)
• M4: 1,728,903 km (0.028 R)
• M5: 2,945,732 km (0.083 R)
• M6: 3,427,138 km (0.067 R)
• M7: 4,234,667 km (0.118 R)
• M8: 4,729,237 km (0.048 R)
• M9: 5,476,479 km (0.085 R)
• M10: 6,173,156 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.6

Radius: 9.5

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.13 AU - 3.37 AU

Year: 2945 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,164,435 km

• M1: 121,623 km (0.093 R)
• M2: 460,761 km (0.115 R)
• M3: 1,265,448 km (0.105 R)
• M4: 1,660,237 km (0.113 R)
• M5: 2,215,694 km (0.059 R)
• M6: 2,581,760 km (0.092 R)
• M7: 2,922,993 km (0.115 R)
• M8: 3,365,055 km (0.114 R)
• M9: 3,716,011 km (0.049 R)
• M10: 6,144,583 km (0.073 R)
• M11: 7,107,844 km (0.082 R)
• M12: 7,532,552 km (0.058 R)
• M13: 8,634,939 km (0.098 R)
• M14: 9,224,953 km (0.117 R)
• M15: 9,841,446 km (0.12 R)
• M16: 10,640,747 km (0.083 R)
• M17: 10,996,341 km (0.058 R)
• M18: 11,359,864 km (0.11 R)
• M19: 11,773,053 km (0.115 R)
• M20: 12,542,285 km (0.076 R)
• M21: 14,085,986 km (0.101 R)
• M22: 14,515,033 km (0.095 R)
• M23: 15,399,306 km (0.083 R)
• M24: 16,371,093 km (0.107 R)
• M25: 17,988,097 km (0.11 R)
• M26: 18,835,270 km (0.08 R)
• M27: 19,590,888 km (0.08 R)
• M28: 20,006,022 km (0.11 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 546.1

Radius: 4.6

Gravity: 25.81 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.71 AU - 8.99 AU

Year: 12866 Days

Day: 20.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 67,164,435 km

• M1: 57,595 km (0.074 R)
• M2: 220,657 km (0.108 R)
• M3: 400,623 km (0.082 R)
• M4: 608,863 km (0.104 R)
• M5: 1,285,794 km (0.071 R)
• M6: 2,085,245 km (0.1 R)
• M7: 2,309,043 km (0.115 R)
• M8: 2,653,268 km (0.099 R)
• M9: 3,054,340 km (0.032 R)
• M10: 3,571,948 km (0.097 R)
• M11: 4,380,226 km (0.068 R)
• M12: 5,865,433 km (0.102 R)
• M13: 6,311,983 km (0.045 R)
• M14: 9,630,662 km (0.091 R)
• M15: 10,198,685 km (0.1 R)
• M16: 10,679,792 km (0.087 R)
• M17: 13,377,939 km (0.053 R)
• M18: 16,281,185 km (0.052 R)
• M19: 16,425,697 km (0.114 R)
• M20: 17,917,337 km (0.114 R)
• M21: 18,381,838 km (0.034 R)
• M22: 20,320,627 km (0.064 R)
• M23: 21,425,706 km (0.11 R)
• M24: 22,125,226 km (0.077 R)
• M25: 22,480,670 km (0.05 R)
• M26: 24,693,821 km (0.05 R)
• M27: 25,951,191 km (0.036 R)
• M28: 29,762,646 km (0.026 R)
• M29: 30,413,846 km (0.105 R)
• M30: 33,462,351 km (0.068 R)
• M31: 36,708,475 km (0.116 R)
• M32: 38,216,272 km (0.067 R)
• M33: 39,503,861 km (0.116 R)
• M34: 40,554,636 km (0.082 R)
• M35: 51,481,265 km (0.102 R)
• M36: 52,262,016 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.9

Radius: 5.7

Gravity: 27.48 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 6.32 AU - 9.62 AU

Year: 14528 Days

Day: 17.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 67,164,435 km

• M1: 70,909 km (0.038 R)
• M2: 267,032 km (0.069 R)
• M3: 455,675 km (0.103 R)
• M4: 1,333,665 km (0.118 R)
• M5: 1,828,535 km (0.059 R)
• M6: 2,849,989 km (0.116 R)
• M7: 3,360,267 km (0.097 R)
• M8: 4,143,412 km (0.036 R)
• M9: 4,494,967 km (0.109 R)
• M10: 6,558,969 km (0.066 R)
• M11: 8,110,299 km (0.077 R)
• M12: 8,558,644 km (0.111 R)
• M13: 9,076,103 km (0.039 R)
• M14: 9,946,912 km (0.041 R)
• M15: 11,355,825 km (0.09 R)
• M16: 11,853,537 km (0.061 R)
• M17: 12,365,760 km (0.108 R)
• M18: 14,563,054 km (0.043 R)
• M19: 16,529,966 km (0.06 R)
• M20: 17,007,782 km (0.055 R)
• M21: 17,990,939 km (0.061 R)
• M22: 19,980,292 km (0.112 R)
• M23: 20,159,959 km (0.07 R)
• M24: 20,705,243 km (0.054 R)
• M25: 21,447,697 km (0.119 R)
• M26: 22,400,486 km (0.109 R)
• M27: 23,281,767 km (0.028 R)
• M28: 23,781,274 km (0.11 R)
• M29: 24,698,309 km (0.12 R)
• M30: 26,929,412 km (0.118 R)
• M31: 29,639,826 km (0.099 R)
• M32: 30,108,516 km (0.036 R)
• M33: 33,402,512 km (0.105 R)
• M34: 34,551,723 km (0.067 R)
• M35: 42,006,185 km (0.083 R)
• M36: 47,369,717 km (0.095 R)
• M37: 48,656,707 km (0.106 R)
• M38: 56,154,104 km (0.107 R)
• M39: 64,974,544 km (0.067 R)
• M40: 66,163,099 km (0.101 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: 421 - 13,461 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit