🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.54 AU - 0.56 AU

Year: 145 Days

Day: 21.2 Hours

Environment

Temp: 230 °C

Axial Tilt: 42.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.72 AU - 1.14 AU

Year: 320 Days

Day: 28.7 Hours

Environment

Temp: 127 °C

Axial Tilt: 5.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.2 AU - 1.4 AU

Year: 528 Days

Day: 12.7 Hours

Environment

Temp: 22 °C

Axial Tilt: 16.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 91,364,486 km

• M1: 229,034 km (0.12 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.98 AU - 5.9 AU

Year: 3914 Days

Day: 34.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.46 AU - 5.68 AU

Year: 4069 Days

Day: 44.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 44.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.8

Radius: 11.1

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.35 AU - 6.37 AU

Year: 5056 Days

Day: 13.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,364,486 km

• M1: 138,079 km (0.086 R)
• M2: 496,067 km (0.111 R)
• M3: 950,246 km (0.092 R)
• M4: 1,413,101 km (0.087 R)
• M5: 1,865,785 km (0.083 R)
• M6: 2,220,481 km (0.07 R)
• M7: 3,294,594 km (0.102 R)
• M8: 4,507,085 km (0.036 R)
• M9: 5,010,781 km (0.065 R)
• M10: 6,635,114 km (0.077 R)
• M11: 7,442,644 km (0.113 R)
• M12: 10,377,155 km (0.026 R)
• M13: 11,340,267 km (0.089 R)
• M14: 11,843,663 km (0.065 R)
• M15: 12,537,947 km (0.092 R)
• M16: 13,630,161 km (0.029 R)
• M17: 15,899,112 km (0.106 R)
• M18: 17,786,439 km (0.109 R)
• M19: 19,222,878 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.2

Radius: 14.1

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 6.49 AU - 7.95 AU

Year: 6915 Days

Day: 8 Hours

Environment

Temp: -145 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,364,486 km

• M1: 185,651 km (0.109 R)
• M2: 878,289 km (0.106 R)
• M3: 1,566,589 km (0.101 R)
• M4: 2,636,662 km (0.056 R)
• M5: 3,697,012 km (0.032 R)
• M6: 4,506,785 km (0.026 R)
• M7: 5,829,979 km (0.095 R)
• M8: 7,000,133 km (0.047 R)
• M9: 7,584,762 km (0.114 R)
• M10: 9,937,637 km (0.101 R)
• M11: 13,229,089 km (0.063 R)
• M12: 16,415,674 km (0.098 R)
• M13: 27,984,077 km (0.094 R)
• M14: 34,826,833 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 923.6

Radius: 4.3

Gravity: 49.95 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 12.33 AU - 19.53 AU

Year: 22663 Days

Day: 21.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 91,364,486 km

• M1: 53,556 km (0.062 R)
• M2: 203,453 km (0.032 R)
• M3: 406,906 km (0.105 R)
• M4: 669,899 km (0.091 R)
• M5: 935,884 km (0.063 R)
• M6: 1,238,521 km (0.109 R)
• M7: 2,421,541 km (0.044 R)
• M8: 3,455,711 km (0.099 R)
• M9: 4,104,218 km (0.119 R)
• M10: 4,604,024 km (0.077 R)
• M11: 4,830,216 km (0.106 R)
• M12: 5,063,888 km (0.118 R)
• M13: 5,553,671 km (0.108 R)
• M14: 7,569,503 km (0.084 R)
• M15: 9,057,702 km (0.105 R)
• M16: 9,901,434 km (0.085 R)
• M17: 10,796,179 km (0.06 R)
• M18: 12,525,680 km (0.063 R)
• M19: 14,114,559 km (0.076 R)
• M20: 19,094,373 km (0.066 R)
• M21: 20,073,940 km (0.1 R)
• M22: 21,396,983 km (0.105 R)
• M23: 27,271,243 km (0.083 R)
• M24: 31,239,177 km (0.068 R)
• M25: 35,283,855 km (0.092 R)
• M26: 37,809,964 km (0.041 R)
• M27: 40,773,049 km (0.089 R)
• M28: 40,933,119 km (0.084 R)
• M29: 41,416,021 km (0.079 R)
• M30: 43,052,771 km (0.106 R)
• M31: 43,218,825 km (0.116 R)
• M32: 56,925,281 km (0.081 R)
• M33: 57,526,664 km (0.069 R)
• M34: 58,946,498 km (0.077 R)
• M35: 59,151,297 km (0.105 R)
• M36: 63,560,844 km (0.084 R)
• M37: 64,208,154 km (0.096 R)
• M38: 80,335,702 km (0.093 R)
• M39: 85,731,847 km (0.09 R)
• M40: 87,582,821 km (0.115 R)
• M41: 88,116,587 km (0.114 R)
• M42: 91,364,506 km (0.099 R)

Kuiper Belt

Range: 30.8 - 53.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 17,845 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit