🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.46 AU - 0.62 AU

Year: 146 Days

Day: 34.7 Hours

Environment

Temp: 244 °C

Axial Tilt: 43.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.52 AU - 0.6 AU

Year: 154 Days

Day: 38.4 Hours

Environment

Temp: 243 °C

Axial Tilt: 5.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.56 AU - 0.86 AU

Year: 220 Days

Day: 28.4 Hours

Environment

Temp: 168 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.73 AU - 0.81 AU

Year: 248 Days

Day: 34.2 Hours

Environment

Temp: 99 °C

Axial Tilt: 20.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.89 AU - 1.23 AU

Year: 401 Days

Day: 21.5 Hours

Environment

Temp: 26 °C

Axial Tilt: 26.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.01 AU - 1.19 AU

Year: 424 Days

Day: 34.5 Hours

Environment

Temp: 30 °C

Axial Tilt: 27.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 55,852,580 km

• M1: 375,042 km (0.089 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.82

Radius: 0.92

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.19 AU - 1.31 AU

Year: 513 Days

Day: 38.9 Hours

Environment

Temp: -11 °C

Axial Tilt: 150.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 8 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.15 AU - 2.51 AU

Year: 1306 Days

Day: 18.4 Hours

Environment

Temp: -74 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,852,580 km

• M1: 410,347 km (0.12 R)

Planet 9 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.44 AU - 2.62 AU

Year: 1477 Days

Day: 21.7 Hours

Environment

Temp: -93 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 10 - Ice Giant

Semi-Major Axis: 13.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340.3

Radius: 7.7

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 13.07 AU - 13.57 AU

Year: 17846 Days

Day: 19.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,852,580 km

• M1: 95,743 km (0.065 R)
• M2: 838,047 km (0.089 R)
• M3: 1,156,990 km (0.105 R)
• M4: 2,154,658 km (0.055 R)
• M5: 2,527,606 km (0.089 R)
• M6: 3,155,318 km (0.077 R)
• M7: 4,285,979 km (0.073 R)
• M8: 5,347,825 km (0.061 R)
• M9: 6,262,017 km (0.082 R)
• M10: 6,615,367 km (0.113 R)
• M11: 7,579,376 km (0.095 R)
• M12: 8,026,375 km (0.09 R)
• M13: 12,627,407 km (0.108 R)
• M14: 14,304,848 km (0.094 R)
• M15: 23,243,769 km (0.1 R)
• M16: 30,613,858 km (0.038 R)
• M17: 31,290,339 km (0.086 R)
• M18: 33,143,109 km (0.077 R)
• M19: 34,458,374 km (0.114 R)
• M20: 35,808,195 km (0.067 R)
• M21: 38,613,006 km (0.038 R)
• M22: 48,051,434 km (0.097 R)
• M23: 55,518,762 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 11,779 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit