🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.6 AU - 0.6 AU

Year: 300 Days

Day: 30.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 169.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.4

Radius: 10.2

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.73 AU - 1.13 AU

Year: 579 Days

Day: 10.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,726,271 km

• M1: 126,859 km (0.111 R)
• M2: 870,510 km (0.026 R)
• M3: 1,350,719 km (0.119 R)
• M4: 1,792,482 km (0.061 R)
• M5: 2,794,787 km (0.044 R)
• M6: 3,840,626 km (0.086 R)
• M7: 5,654,351 km (0.076 R)
• M8: 6,876,416 km (0.095 R)
• M9: 7,380,261 km (0.056 R)
• M10: 7,768,318 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.3

Radius: 11.4

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.55 AU - 1.89 AU

Year: 1456 Days

Day: 14.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 89.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,726,271 km

• M1: 141,819 km (0.095 R)
• M2: 550,969 km (0.117 R)
• M3: 1,231,789 km (0.116 R)
• M4: 1,588,281 km (0.075 R)
• M5: 1,993,840 km (0.089 R)
• M6: 2,592,980 km (0.079 R)
• M7: 3,264,375 km (0.065 R)
• M8: 3,682,052 km (0.092 R)
• M9: 4,205,495 km (0.111 R)
• M10: 5,277,364 km (0.092 R)
• M11: 6,102,845 km (0.05 R)
• M12: 8,400,369 km (0.109 R)
• M13: 9,680,329 km (0.114 R)
• M14: 10,091,723 km (0.106 R)
• M15: 11,713,214 km (0.106 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.9

Radius: 3.7

Gravity: 19.72 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.57 AU - 10.23 AU

Year: 15719 Days

Day: 18.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 59,726,271 km

• M1: 46,226 km (0.103 R)
• M2: 318,195 km (0.114 R)
• M3: 805,585 km (0.084 R)
• M4: 1,099,096 km (0.087 R)
• M5: 1,340,397 km (0.068 R)
• M6: 1,586,635 km (0.091 R)
• M7: 1,705,565 km (0.104 R)
• M8: 2,133,714 km (0.08 R)
• M9: 2,411,368 km (0.116 R)
• M10: 2,796,882 km (0.087 R)
• M11: 3,015,743 km (0.1 R)
• M12: 3,152,326 km (0.118 R)
• M13: 3,389,439 km (0.116 R)
• M14: 4,006,829 km (0.112 R)
• M15: 4,879,883 km (0.11 R)
• M16: 6,758,084 km (0.117 R)
• M17: 7,032,147 km (0.104 R)
• M18: 7,192,217 km (0.111 R)
• M19: 7,686,787 km (0.111 R)
• M20: 7,985,534 km (0.094 R)
• M21: 8,115,984 km (0.059 R)
• M22: 9,163,318 km (0.046 R)
• M23: 13,753,131 km (0.11 R)
• M24: 14,577,864 km (0.066 R)
• M25: 20,716,313 km (0.07 R)
• M26: 24,346,156 km (0.067 R)
• M27: 25,928,453 km (0.108 R)
• M28: 28,580,224 km (0.111 R)
• M29: 31,841,308 km (0.084 R)
• M30: 33,279,692 km (0.111 R)
• M31: 37,976,018 km (0.101 R)
• M32: 40,226,269 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.4

Radius: 4.3

Gravity: 20.9 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 7.78 AU - 10.96 AU

Year: 18519 Days

Day: 24.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 59,726,271 km

• M1: 53,706 km (0.091 R)
• M2: 530,923 km (0.047 R)
• M3: 688,898 km (0.059 R)
• M4: 952,639 km (0.063 R)
• M5: 1,189,303 km (0.085 R)
• M6: 1,539,212 km (0.081 R)
• M7: 2,525,212 km (0.056 R)
• M8: 3,125,399 km (0.073 R)
• M9: 3,485,331 km (0.064 R)
• M10: 4,443,057 km (0.105 R)
• M11: 5,276,466 km (0.105 R)
• M12: 5,823,995 km (0.106 R)
• M13: 6,570,638 km (0.072 R)
• M14: 8,347,561 km (0.096 R)
• M15: 9,191,144 km (0.096 R)
• M16: 10,144,830 km (0.11 R)
• M17: 11,636,171 km (0.04 R)
• M18: 13,007,385 km (0.101 R)
• M19: 13,866,227 km (0.072 R)
• M20: 18,081,296 km (0.108 R)
• M21: 20,521,238 km (0.081 R)
• M22: 20,785,577 km (0.096 R)
• M23: 25,734,723 km (0.056 R)
• M24: 26,145,070 km (0.079 R)
• M25: 26,351,964 km (0.108 R)
• M26: 28,262,479 km (0.109 R)
• M27: 32,476,052 km (0.077 R)
• M28: 37,219,801 km (0.067 R)
• M29: 37,481,597 km (0.118 R)
• M30: 40,996,698 km (0.1 R)
• M31: 42,405,162 km (0.11 R)
• M32: 43,265,649 km (0.093 R)
• M33: 49,301,025 km (0.045 R)
• M34: 53,844,313 km (0.114 R)
• M35: 56,734,394 km (0.039 R)
• M36: 58,305,621 km (0.115 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 19,664 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit