🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.52 AU - 0.62 AU

Year: 160 Days

Day: 27.8 Hours

Environment

Temp: 178 °C

Axial Tilt: 39.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,242,793 km

• M1: 103,522 km (0.073 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.68 AU - 1.06 AU

Year: 301 Days

Day: 45.5 Hours

Environment

Temp: 132 °C

Axial Tilt: 42.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.28 AU - 1.4 AU

Year: 575 Days

Day: 18.2 Hours

Environment

Temp: -26 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.27 AU - 1.95 AU

Year: 758 Days

Day: 15.7 Hours

Environment

Temp: -52 °C

Axial Tilt: 7.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.78 AU - 3.92 AU

Year: 2274 Days

Day: 24.1 Hours

Environment

Temp: -108 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.7

Radius: 9

Gravity: 9.42 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 4.83 AU - 4.85 AU

Year: 3949 Days

Day: 7.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 100,242,793 km

• M1: 111,899 km (0.082 R)
• M2: 448,794 km (0.091 R)
• M3: 976,276 km (0.101 R)
• M4: 2,070,734 km (0.108 R)
• M5: 2,636,812 km (0.104 R)
• M6: 3,168,632 km (0.118 R)
• M7: 3,877,726 km (0.087 R)
• M8: 5,069,423 km (0.113 R)
• M9: 6,994,748 km (0.094 R)
• M10: 7,942,899 km (0.062 R)
• M11: 8,859,635 km (0.083 R)
• M12: 11,390,831 km (0.12 R)
• M13: 11,893,779 km (0.08 R)
• M14: 12,993,173 km (0.041 R)
• M15: 14,474,192 km (0.053 R)
• M16: 14,901,743 km (0.068 R)
• M17: 17,646,864 km (0.117 R)
• M18: 18,012,182 km (0.115 R)
• M19: 18,632,265 km (0.109 R)
• M20: 19,459,541 km (0.114 R)
• M21: 20,779,743 km (0.083 R)
• M22: 21,808,378 km (0.031 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310

Radius: 14.2

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.66 AU - 8.38 AU

Year: 7648 Days

Day: 11.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 100,242,793 km

• M1: 176,675 km (0.072 R)
• M2: 930,648 km (0.066 R)
• M3: 1,592,320 km (0.045 R)
• M4: 2,316,523 km (0.114 R)
• M5: 4,001,444 km (0.05 R)
• M6: 4,479,110 km (0.114 R)
• M7: 5,130,010 km (0.062 R)
• M8: 6,054,675 km (0.101 R)
• M9: 6,852,330 km (0.111 R)
• M10: 7,329,099 km (0.074 R)
• M11: 8,736,067 km (0.054 R)
• M12: 9,462,365 km (0.101 R)
• M13: 12,727,637 km (0.1 R)
• M14: 13,555,961 km (0.112 R)
• M15: 14,364,986 km (0.089 R)
• M16: 15,667,834 km (0.107 R)
• M17: 16,619,725 km (0.103 R)
• M18: 17,799,753 km (0.072 R)
• M19: 23,617,614 km (0.065 R)
• M20: 24,552,003 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.5

Radius: 8

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 11.38 AU - 14.34 AU

Year: 17103 Days

Day: 16.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 100,242,793 km

• M1: 99,483 km (0.104 R)
• M2: 401,670 km (0.114 R)
• M3: 669,151 km (0.07 R)
• M4: 918,381 km (0.104 R)
• M5: 1,168,359 km (0.088 R)
• M6: 1,760,468 km (0.12 R)
• M7: 2,115,314 km (0.103 R)
• M8: 2,805,558 km (0.082 R)
• M9: 3,475,159 km (0.044 R)
• M10: 3,748,773 km (0.085 R)
• M11: 4,066,369 km (0.106 R)
• M12: 6,651,121 km (0.065 R)
• M13: 12,415,726 km (0.084 R)
• M14: 19,019,424 km (0.102 R)
• M15: 21,020,146 km (0.092 R)
• M16: 24,228,722 km (0.088 R)
• M17: 25,434,929 km (0.105 R)
• M18: 28,735,657 km (0.075 R)
• M19: 32,311,345 km (0.07 R)
• M20: 33,895,138 km (0.03 R)
• M21: 35,530,242 km (0.084 R)
• M22: 42,022,939 km (0.03 R)
• M23: 43,468,504 km (0.077 R)
• M24: 44,351,580 km (0.097 R)
• M25: 48,788,952 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 750.7

Radius: 4

Gravity: 46.92 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 17.57 AU - 18.91 AU

Year: 28890 Days

Day: 18.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 100,242,793 km

• M1: 49,816 km (0.067 R)
• M2: 342,729 km (0.037 R)
• M3: 673,938 km (0.112 R)
• M4: 815,757 km (0.102 R)
• M5: 2,156,304 km (0.057 R)
• M6: 3,585,263 km (0.107 R)
• M7: 4,724,301 km (0.053 R)
• M8: 9,058,600 km (0.099 R)
• M9: 9,302,145 km (0.06 R)
• M10: 11,339,369 km (0.096 R)
• M11: 14,966,220 km (0.118 R)
• M12: 16,002,484 km (0.117 R)
• M13: 21,475,672 km (0.115 R)
• M14: 22,347,229 km (0.069 R)
• M15: 22,903,733 km (0.102 R)
• M16: 26,561,700 km (0.059 R)
• M17: 31,276,427 km (0.103 R)
• M18: 32,678,608 km (0.095 R)
• M19: 37,446,591 km (0.113 R)
• M20: 40,650,379 km (0.097 R)
• M21: 48,516,833 km (0.096 R)
• M22: 50,582,930 km (0.028 R)
• M23: 56,514,485 km (0.063 R)
• M24: 58,800,640 km (0.071 R)
• M25: 67,171,239 km (0.118 R)
• M26: 68,795,124 km (0.104 R)
• M27: 70,682,750 km (0.054 R)
• M28: 72,604,634 km (0.055 R)
• M29: 81,161,782 km (0.064 R)
• M30: 94,639,652 km (0.101 R)
• M31: 95,801,429 km (0.079 R)
• M32: 98,153,407 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 15,523 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit