🌌 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: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.46 AU - 0.7 AU

Year: 156 Days

Day: 36.6 Hours

Environment

Temp: 203 °C

Axial Tilt: 14.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 56,028,901 km

• M1: 368,759 km (0.11 R)
• M2: 443,857 km (0.064 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.12 AU - 1.26 AU

Year: 458 Days

Day: 22.5 Hours

Environment

Temp: 19 °C

Axial Tilt: 4.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.39 AU - 1.79 AU

Year: 708 Days

Day: 28.3 Hours

Environment

Temp: -19 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.62 AU - 1.88 AU

Year: 817 Days

Day: 35 Hours

Environment

Temp: -45 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.76 AU - 2.4 AU

Year: 1059 Days

Day: 44.3 Hours

Environment

Temp: -53 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.96 AU - 3.14 AU

Year: 1438 Days

Day: 21.6 Hours

Environment

Temp: -86 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.42 AU - 3.62 AU

Year: 1853 Days

Day: 45 Hours

Environment

Temp: -88 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.39 AU - 4.33 AU

Year: 2678 Days

Day: 25.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.83 AU - 4.81 AU

Year: 3170 Days

Day: 47.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.96 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 13.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 349.6

Radius: 6.8

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 11.04 AU - 16.14 AU

Year: 17690 Days

Day: 24.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 56,028,901 km

• M1: 167,550 km (0.035 R)
• M2: 305,778 km (0.081 R)
• M3: 360,830 km (0.091 R)
• M4: 450,888 km (0.056 R)
• M5: 654,640 km (0.088 R)
• M6: 709,991 km (0.102 R)
• M7: 825,930 km (0.085 R)
• M8: 1,520,214 km (0.115 R)
• M9: 1,645,726 km (0.07 R)
• M10: 1,800,859 km (0.095 R)
• M11: 2,921,347 km (0.117 R)
• M12: 3,078,126 km (0.118 R)
• M13: 3,173,569 km (0.091 R)
• M14: 3,432,673 km (0.114 R)
• M15: 3,531,557 km (0.104 R)
• M16: 3,631,488 km (0.113 R)
• M17: 3,834,193 km (0.074 R)
• M18: 3,971,375 km (0.052 R)
• M19: 4,392,493 km (0.099 R)
• M20: 4,644,864 km (0.096 R)
• M21: 4,717,868 km (0.107 R)
• M22: 4,938,974 km (0.106 R)
• M23: 5,088,422 km (0.088 R)
• M24: 5,506,847 km (0.119 R)
• M25: 6,744,620 km (0.079 R)
• M26: 7,035,737 km (0.071 R)
• M27: 7,330,894 km (0.105 R)
• M28: 7,630,090 km (0.079 R)
• M29: 7,759,642 km (0.116 R)
• M30: 8,196,467 km (0.051 R)
• M31: 8,240,599 km (0.106 R)
• M32: 8,551,613 km (0.102 R)
• M33: 8,641,222 km (0.05 R)
• M34: 8,686,101 km (0.075 R)
• M35: 9,048,278 km (0.086 R)
• M36: 9,554,367 km (0.076 R)
• M37: 10,116,706 km (0.113 R)
• M38: 10,738,135 km (0.098 R)
• M39: 10,834,925 km (0.116 R)
• M40: 11,470,566 km (0.099 R)
• M41: 11,917,714 km (0.114 R)
• M42: 12,067,911 km (0.096 R)
• M43: 12,573,551 km (0.103 R)
• M44: 12,880,227 km (0.118 R)
• M45: 14,557,070 km (0.11 R)
• M46: 15,041,019 km (0.088 R)
• M47: 15,095,173 km (0.112 R)
• M48: 16,135,178 km (0.03 R)
• M49: 17,709,546 km (0.057 R)
• M50: 18,922,036 km (0.114 R)
• M51: 20,042,225 km (0.081 R)
• M52: 20,460,202 km (0.078 R)
• M53: 20,760,594 km (0.096 R)
• M54: 20,820,882 km (0.088 R)
• M55: 21,062,483 km (0.06 R)
• M56: 21,609,412 km (0.073 R)
• M57: 21,731,634 km (0.051 R)
• M58: 22,655,251 km (0.075 R)
• M59: 22,903,733 km (0.083 R)
• M60: 23,340,709 km (0.066 R)
• M61: 23,969,917 km (0.103 R)
• M62: 24,540,783 km (0.096 R)
• M63: 25,373,444 km (0.102 R)
• M64: 25,437,772 km (0.036 R)
• M65: 26,606,879 km (0.099 R)
• M66: 27,000,471 km (0.111 R)
• M67: 27,066,294 km (0.069 R)
• M68: 31,178,590 km (0.112 R)
• M69: 31,593,425 km (0.101 R)
• M70: 32,219,193 km (0.106 R)
• M71: 32,428,630 km (0.064 R)
• M72: 32,638,665 km (0.075 R)
• M73: 33,059,933 km (0.045 R)
• M74: 33,341,775 km (0.113 R)
• M75: 34,049,822 km (0.11 R)
• M76: 34,548,431 km (0.069 R)
• M77: 38,327,274 km (0.076 R)
• M78: 41,397,770 km (0.102 R)
• M79: 42,770,630 km (0.106 R)
• M80: 43,231,541 km (0.111 R)
• M81: 44,003,316 km (0.078 R)
• M82: 44,390,924 km (0.107 R)
• M83: 44,857,670 km (0.088 R)
• M84: 44,935,610 km (0.054 R)
• M85: 45,091,641 km (0.052 R)
• M86: 46,109,953 km (0.106 R)
• M87: 46,582,533 km (0.038 R)
• M88: 47,771,088 km (0.114 R)
• M89: 47,930,260 km (0.117 R)
• M90: 48,249,352 km (0.119 R)
• M91: 49,532,154 km (0.114 R)
• M92: 49,612,787 km (0.112 R)
• M93: 51,314,463 km (0.087 R)
• M94: 51,640,736 km (0.082 R)
• M95: 53,530,456 km (0.118 R)
• M96: 54,858,138 km (0.063 R)

Kuiper Belt

Range: 31.1 - 54.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 20,165 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit