🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.49 AU - 0.75 AU

Year: 171 Days

Day: 30 Hours

Environment

Temp: 212 °C

Axial Tilt: 10.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,506,519 km

• M1: 33,360 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.7 AU - 0.84 AU

Year: 236 Days

Day: 18.5 Hours

Environment

Temp: 177 °C

Axial Tilt: 25.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.73 AU - 0.95 AU

Year: 269 Days

Day: 34.8 Hours

Environment

Temp: 174 °C

Axial Tilt: 130 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.43 AU - 1.55 AU

Year: 636 Days

Day: 15.9 Hours

Environment

Temp: -13 °C

Axial Tilt: 18.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 44,506,519 km

• M1: 39,793 km (0.05 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.67 AU - 1.69 AU

Year: 762 Days

Day: 30.2 Hours

Environment

Temp: -22 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.52 AU - 4.94 AU

Year: 3044 Days

Day: 14.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.6

Radius: 11.4

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 4.36 AU - 7.08 AU

Year: 4786 Days

Day: 11.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,506,519 km

• M1: 141,819 km (0.094 R)
• M2: 550,670 km (0.047 R)
• M3: 1,028,037 km (0.047 R)
• M4: 1,745,957 km (0.029 R)
• M5: 2,417,053 km (0.113 R)
• M6: 3,596,632 km (0.059 R)
• M7: 4,126,807 km (0.056 R)
• M8: 5,393,751 km (0.048 R)
• M9: 5,904,030 km (0.092 R)
• M10: 7,600,021 km (0.03 R)
• M11: 8,577,344 km (0.104 R)
• M12: 9,026,137 km (0.063 R)
• M13: 9,970,848 km (0.073 R)
• M14: 10,662,588 km (0.117 R)
• M15: 13,614,304 km (0.11 R)
• M16: 17,289,026 km (0.092 R)
• M17: 18,628,974 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 13.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.7

Radius: 9.5

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 12.17 AU - 13.95 AU

Year: 16512 Days

Day: 12.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,506,519 km

• M1: 123,867 km (0.071 R)
• M2: 883,675 km (0.08 R)
• M3: 1,671,307 km (0.103 R)
• M4: 2,851,186 km (0.077 R)
• M5: 3,354,882 km (0.105 R)
• M6: 5,953,995 km (0.046 R)
• M7: 8,653,938 km (0.12 R)
• M8: 9,406,714 km (0.071 R)
• M9: 10,899,252 km (0.105 R)
• M10: 12,648,350 km (0.057 R)
• M11: 14,007,297 km (0.068 R)
• M12: 16,631,244 km (0.057 R)
• M13: 25,003,788 km (0.098 R)
• M14: 34,050,420 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.5

Radius: 5.4

Gravity: 15.86 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 12.78 AU - 14.64 AU

Year: 17760 Days

Day: 15.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 44,506,519 km

• M1: 67,169 km (0.115 R)
• M2: 319,541 km (0.107 R)
• M3: 545,284 km (0.104 R)
• M4: 778,208 km (0.116 R)
• M5: 1,088,624 km (0.054 R)
• M6: 1,849,478 km (0.046 R)
• M7: 2,917,308 km (0.076 R)
• M8: 3,162,200 km (0.044 R)
• M9: 4,159,270 km (0.094 R)
• M10: 4,896,937 km (0.08 R)
• M11: 5,278,860 km (0.05 R)
• M12: 6,102,396 km (0.07 R)
• M13: 7,270,157 km (0.1 R)
• M14: 8,981,108 km (0.106 R)
• M15: 9,290,177 km (0.078 R)
• M16: 10,149,318 km (0.118 R)
• M17: 10,885,339 km (0.114 R)
• M18: 15,840,021 km (0.094 R)
• M19: 16,367,353 km (0.103 R)
• M20: 16,674,029 km (0.062 R)
• M21: 22,773,433 km (0.12 R)
• M22: 23,251,847 km (0.096 R)
• M23: 26,055,162 km (0.064 R)
• M24: 31,370,973 km (0.081 R)
• M25: 31,844,151 km (0.084 R)
• M26: 32,082,460 km (0.047 R)
• M27: 33,047,666 km (0.118 R)
• M28: 34,406,313 km (0.052 R)
• M29: 37,498,801 km (0.111 R)
• M30: 38,569,622 km (0.114 R)
• M31: 41,903,710 km (0.075 R)
• M32: 43,640,691 km (0.104 R)
• M33: 43,934,800 km (0.112 R)
• M34: 45,727,132 km (0.11 R)
• M35: 49,138,562 km (0.063 R)
• M36: 56,812,185 km (0.104 R)
• M37: 56,987,364 km (0.081 R)
• M38: 60,749,003 km (0.093 R)
• M39: 61,668,431 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.3

Radius: 4.3

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 13.96 AU - 19.2 AU

Year: 23619 Days

Day: 15.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,506,519 km

• M1: 109,506 km (0.103 R)
• M2: 287,677 km (0.094 R)
• M3: 1,253,780 km (0.093 R)
• M4: 1,665,623 km (0.072 R)
• M5: 3,253,754 km (0.064 R)
• M6: 5,950,255 km (0.106 R)
• M7: 7,449,376 km (0.092 R)
• M8: 8,592,902 km (0.025 R)
• M9: 10,854,223 km (0.103 R)
• M10: 11,597,725 km (0.111 R)
• M11: 14,467,012 km (0.117 R)
• M12: 17,921,227 km (0.068 R)
• M13: 21,804,488 km (0.057 R)
• M14: 29,629,803 km (0.105 R)
• M15: 33,331,602 km (0.099 R)
• M16: 34,894,751 km (0.067 R)
• M17: 38,649,807 km (0.105 R)
• M18: 39,752,493 km (0.114 R)
• M19: 40,124,692 km (0.088 R)
• M20: 42,536,060 km (0.072 R)

Kuiper Belt

Range: 31.4 - 55.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 10,533 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit