🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.54 AU - 0.74 AU

Year: 194 Days

Day: 37.9 Hours

Environment

Temp: 112 °C

Axial Tilt: 39.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.62 AU - 0.86 AU

Year: 241 Days

Day: 41.8 Hours

Environment

Temp: 168 °C

Axial Tilt: 20 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.24 AU - 1.46 AU

Year: 594 Days

Day: 46.1 Hours

Environment

Temp: -41 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,357,105 km

• M1: 42,935 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.75 AU - 2.53 AU

Year: 1186 Days

Day: 21.5 Hours

Environment

Temp: -91 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,357,105 km

• M1: 188,493 km (0.068 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.77 AU - 4.13 AU

Year: 2973 Days

Day: 18.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.7

Radius: 12.9

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 4.64 AU - 5.42 AU

Year: 4273 Days

Day: 10.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,357,105 km

• M1: 160,668 km (0.088 R)
• M2: 692,788 km (0.112 R)
• M3: 1,123,330 km (0.105 R)
• M4: 1,816,567 km (0.071 R)
• M5: 2,835,029 km (0.105 R)
• M6: 3,597,829 km (0.111 R)
• M7: 4,250,674 km (0.072 R)
• M8: 4,875,694 km (0.118 R)
• M9: 5,279,758 km (0.078 R)
• M10: 6,758,832 km (0.093 R)
• M11: 7,719,699 km (0.074 R)
• M12: 8,460,358 km (0.042 R)
• M13: 9,912,505 km (0.091 R)
• M14: 11,244,674 km (0.119 R)
• M15: 12,895,037 km (0.087 R)
• M16: 13,566,881 km (0.09 R)
• M17: 14,045,744 km (0.073 R)
• M18: 16,133,682 km (0.085 R)
• M19: 16,611,048 km (0.091 R)
• M20: 17,097,840 km (0.103 R)
• M21: 20,015,896 km (0.101 R)
• M22: 23,100,454 km (0.11 R)
• M23: 25,753,872 km (0.104 R)
• M24: 29,926,605 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.7

Radius: 9.1

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.31 AU - 8.07 AU

Year: 6554 Days

Day: 5.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,357,105 km

• M1: 132,544 km (0.095 R)
• M2: 2,236,638 km (0.108 R)
• M3: 3,491,315 km (0.068 R)
• M4: 3,903,457 km (0.105 R)
• M5: 4,238,856 km (0.069 R)
• M6: 5,064,786 km (0.091 R)
• M7: 8,120,771 km (0.115 R)
• M8: 9,918,189 km (0.109 R)
• M9: 10,585,545 km (0.073 R)
• M10: 16,661,164 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.3

Radius: 8

Gravity: 10.91 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 7.12 AU - 8.66 AU

Year: 8394 Days

Day: 12.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,357,105 km

• M1: 99,483 km (0.076 R)
• M2: 349,311 km (0.088 R)
• M3: 634,295 km (0.102 R)
• M4: 1,090,868 km (0.093 R)
• M5: 1,450,950 km (0.084 R)
• M6: 1,904,381 km (0.117 R)
• M7: 3,249,864 km (0.101 R)
• M8: 4,002,042 km (0.114 R)
• M9: 4,268,177 km (0.085 R)
• M10: 5,138,088 km (0.097 R)
• M11: 5,747,251 km (0.111 R)
• M12: 6,475,493 km (0.093 R)
• M13: 10,061,504 km (0.102 R)
• M14: 10,961,934 km (0.108 R)
• M15: 11,326,354 km (0.111 R)
• M16: 17,737,072 km (0.025 R)
• M17: 24,499,045 km (0.104 R)
• M18: 27,530,496 km (0.104 R)
• M19: 28,790,260 km (0.066 R)
• M20: 29,086,464 km (0.076 R)
• M21: 29,886,064 km (0.047 R)
• M22: 30,700,176 km (0.098 R)
• M23: 32,479,343 km (0.057 R)
• M24: 39,065,838 km (0.084 R)
• M25: 40,903,648 km (0.101 R)
• M26: 42,160,420 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.3

Radius: 3.2

Gravity: 17.12 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 9.71 AU - 14.39 AU

Year: 15843 Days

Day: 19.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 41,357,105 km

• M1: 40,242 km (0.101 R)
• M2: 246,388 km (0.075 R)
• M3: 473,776 km (0.117 R)
• M4: 835,055 km (0.084 R)
• M5: 1,538,165 km (0.084 R)
• M6: 2,397,605 km (0.087 R)
• M7: 3,234,007 km (0.103 R)
• M8: 3,730,073 km (0.09 R)
• M9: 4,666,556 km (0.077 R)
• M10: 4,930,596 km (0.098 R)
• M11: 7,218,247 km (0.116 R)
• M12: 8,743,098 km (0.102 R)
• M13: 9,791,929 km (0.038 R)
• M14: 10,469,757 km (0.111 R)
• M15: 12,135,678 km (0.051 R)
• M16: 12,300,386 km (0.088 R)
• M17: 12,522,239 km (0.08 R)
• M18: 13,850,369 km (0.053 R)
• M19: 14,890,224 km (0.062 R)
• M20: 15,590,342 km (0.073 R)
• M21: 16,579,782 km (0.109 R)
• M22: 19,421,693 km (0.04 R)
• M23: 20,488,326 km (0.092 R)
• M24: 21,997,469 km (0.072 R)
• M25: 23,409,224 km (0.059 R)
• M26: 25,146,056 km (0.119 R)
• M27: 26,595,958 km (0.104 R)
• M28: 31,072,824 km (0.116 R)
• M29: 31,587,740 km (0.083 R)
• M30: 31,795,232 km (0.087 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 13,986 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit