🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.66 AU - 0.88 AU

Year: 259 Days

Day: 19.3 Hours

Environment

Temp: 122 °C

Axial Tilt: 4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.02 AU - 1.1 AU

Year: 418 Days

Day: 46.6 Hours

Environment

Temp: -11 °C

Axial Tilt: 22.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 60,852,560 km

• M1: 205,398 km (0.074 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.26 AU - 1.84 AU

Year: 739 Days

Day: 35.8 Hours

Environment

Temp: -55 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.48 AU - 1.7 AU

Year: 768 Days

Day: 20 Hours

Environment

Temp: -69 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.81 AU - 2.07 AU

Year: 1035 Days

Day: 18.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.73 AU - 3.27 AU

Year: 1990 Days

Day: 39.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.94 AU - 4.64 AU

Year: 2825 Days

Day: 46.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,852,560 km

• M1: 38,447 km (0.104 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.57 AU - 4.23 AU

Year: 2949 Days

Day: 36.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Ice Giant

Semi-Major Axis: 13.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 363

Radius: 8

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 12.32 AU - 15.3 AU

Year: 19650 Days

Day: 17.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,852,560 km

• M1: 103,671 km (0.116 R)
• M2: 829,071 km (0.071 R)
• M3: 2,302,610 km (0.087 R)
• M4: 5,031,575 km (0.061 R)
• M5: 11,115,271 km (0.104 R)
• M6: 12,138,072 km (0.081 R)
• M7: 12,961,459 km (0.077 R)
• M8: 14,578,612 km (0.11 R)
• M9: 15,802,621 km (0.078 R)
• M10: 16,630,197 km (0.114 R)
• M11: 19,798,231 km (0.083 R)
• M12: 20,144,251 km (0.117 R)
• M13: 22,587,035 km (0.101 R)
• M14: 24,519,091 km (0.072 R)
• M15: 28,379,165 km (0.107 R)
• M16: 30,053,165 km (0.117 R)
• M17: 31,910,273 km (0.117 R)
• M18: 32,505,822 km (0.081 R)
• M19: 34,586,729 km (0.086 R)
• M20: 35,215,339 km (0.077 R)
• M21: 36,885,150 km (0.096 R)
• M22: 51,044,738 km (0.07 R)
• M23: 55,375,896 km (0.12 R)
• M24: 60,307,390 km (0.091 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: 289 - 14,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit