🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.46 AU - 0.58 AU

Year: 133 Days

Day: 46 Hours

Environment

Temp: 208 °C

Axial Tilt: 5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.74 AU - 0.78 AU

Year: 235 Days

Day: 45 Hours

Environment

Temp: 202 °C

Axial Tilt: 37.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.66 AU - 1.04 AU

Year: 278 Days

Day: 46.5 Hours

Environment

Temp: 139 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 45,524,774 km

• M1: 56,548 km (0.064 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.97 AU - 1.27 AU

Year: 420 Days

Day: 26 Hours

Environment

Temp: 23 °C

Axial Tilt: 31.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 45,524,774 km

• M1: 89,460 km (0.111 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.81 AU - 2.17 AU

Year: 996 Days

Day: 21.3 Hours

Environment

Temp: -49 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.9 AU - 4.46 AU

Year: 2504 Days

Day: 14.5 Hours

Environment

Temp: -107 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,524,774 km

• M1: 2,977,895 km (0.115 R)

Asteroid Belt

Center: 5.92 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.2

Radius: 14.3

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.83 AU - 8.49 AU

Year: 8269 Days

Day: 12.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,524,774 km

• M1: 179,069 km (0.103 R)
• M2: 722,408 km (0.099 R)
• M3: 2,072,529 km (0.117 R)
• M4: 2,531,196 km (0.091 R)
• M5: 2,993,902 km (0.093 R)
• M6: 3,783,181 km (0.057 R)
• M7: 4,227,935 km (0.084 R)
• M8: 7,518,490 km (0.058 R)
• M9: 10,369,825 km (0.086 R)
• M10: 11,090,139 km (0.079 R)
• M11: 13,877,746 km (0.106 R)
• M12: 15,865,602 km (0.054 R)
• M13: 17,673,941 km (0.103 R)
• M14: 20,400,063 km (0.035 R)
• M15: 28,720,248 km (0.099 R)
• M16: 30,038,953 km (0.032 R)
• M17: 30,975,286 km (0.102 R)
• M18: 35,144,579 km (0.111 R)
• M19: 37,244,484 km (0.059 R)
• M20: 38,568,126 km (0.072 R)
• M21: 42,208,142 km (0.079 R)
• M22: 44,579,118 km (0.066 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 14,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit