🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.83 AU - 0.93 AU

Year: 344 Days

Day: 26.4 Hours

Environment

Temp: -37 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.74 AU - 1.2 AU

Year: 398 Days

Day: 26.9 Hours

Environment

Temp: -48 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,656,244 km

• M1: 23,487 km (0.109 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.84 AU - 1.1 AU

Year: 398 Days

Day: 13.9 Hours

Environment

Temp: -44 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,656,244 km

• M1: 46,226 km (0.027 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.84 AU - 1.16 AU

Year: 416 Days

Day: 36.9 Hours

Environment

Temp: -50 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.16 AU - 1.64 AU

Year: 690 Days

Day: 36.9 Hours

Environment

Temp: -70 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.65 AU - 1.75 AU

Year: 923 Days

Day: 45.8 Hours

Environment

Temp: -91 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.16 AU - 2.46 AU

Year: 1461 Days

Day: 45.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.14 AU - 3.02 AU

Year: 1725 Days

Day: 30 Hours

Environment

Temp: -126 °C

Axial Tilt: 18.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.22 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.3

Radius: 13.6

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.34 AU - 4.38 AU

Year: 3157 Days

Day: 12 Hours

Environment

Temp: -149 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,656,244 km

• M1: 169,195 km (0.073 R)
• M2: 625,768 km (0.088 R)
• M3: 1,278,015 km (0.103 R)
• M4: 1,755,082 km (0.106 R)
• M5: 2,511,150 km (0.091 R)
• M6: 2,949,322 km (0.051 R)
• M7: 3,475,907 km (0.073 R)
• M8: 4,697,523 km (0.108 R)
• M9: 5,245,051 km (0.117 R)
• M10: 6,105,388 km (0.12 R)
• M11: 7,459,249 km (0.109 R)
• M12: 9,257,415 km (0.08 R)
• M13: 9,739,569 km (0.118 R)
• M14: 12,994,221 km (0.078 R)
• M15: 13,933,546 km (0.109 R)
• M16: 14,967,865 km (0.103 R)
• M17: 15,581,516 km (0.086 R)
• M18: 17,749,339 km (0.104 R)
• M19: 19,562,614 km (0.091 R)
• M20: 20,296,691 km (0.118 R)
• M21: 21,049,019 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.1

Radius: 7.8

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 9.89 AU - 15.53 AU

Year: 18861 Days

Day: 17.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 53,656,244 km

• M1: 96,939 km (0.112 R)
• M2: 538,403 km (0.077 R)
• M3: 1,986,959 km (0.083 R)
• M4: 2,432,910 km (0.068 R)
• M5: 2,766,214 km (0.108 R)
• M6: 3,869,947 km (0.042 R)
• M7: 4,505,589 km (0.083 R)
• M8: 7,584,462 km (0.119 R)
• M9: 8,767,034 km (0.086 R)
• M10: 9,502,906 km (0.076 R)
• M11: 10,120,595 km (0.068 R)
• M12: 11,840,223 km (0.079 R)
• M13: 12,134,781 km (0.073 R)
• M14: 13,047,926 km (0.084 R)
• M15: 13,553,268 km (0.072 R)
• M16: 18,704,970 km (0.046 R)
• M17: 21,624,971 km (0.067 R)
• M18: 23,147,279 km (0.088 R)
• M19: 26,005,495 km (0.113 R)
• M20: 26,805,844 km (0.036 R)
• M21: 27,110,126 km (0.069 R)
• M22: 29,090,952 km (0.086 R)
• M23: 29,953,234 km (0.094 R)
• M24: 32,989,023 km (0.114 R)
• M25: 34,282,596 km (0.096 R)
• M26: 35,487,607 km (0.054 R)
• M27: 38,494,524 km (0.07 R)
• M28: 40,724,430 km (0.111 R)
• M29: 46,453,729 km (0.111 R)
• M30: 47,040,003 km (0.055 R)
• M31: 47,928,465 km (0.097 R)
• M32: 53,656,268 km (0.051 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 274 - 15,192 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit