🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.69 AU - 0.73 AU

Year: 216 Days

Day: 32.1 Hours

Environment

Temp: 155 °C

Axial Tilt: 22.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 21,083,320 km

• M1: 40,990 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.75 AU - 0.93 AU

Year: 278 Days

Day: 27.6 Hours

Environment

Temp: 93 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 21,083,320 km

• M1: 48,021 km (0.074 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.85 AU - 0.97 AU

Year: 314 Days

Day: 18.4 Hours

Environment

Temp: 96 °C

Axial Tilt: 26.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 21,083,320 km

• M1: 220,806 km (0.094 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.17 AU - 1.57 AU

Year: 580 Days

Day: 40.5 Hours

Environment

Temp: 8 °C

Axial Tilt: 75.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.27 AU - 2.53 AU

Year: 1345 Days

Day: 23.5 Hours

Environment

Temp: -86 °C

Axial Tilt: 4.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 21,083,320 km

• M1: 766,091 km (0.043 R)
• M2: 967,300 km (0.11 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.11 AU - 5.09 AU

Year: 3568 Days

Day: 16.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.3

Radius: 8.4

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.78 AU - 6.34 AU

Year: 4741 Days

Day: 5.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,083,320 km

• M1: 104,419 km (0.111 R)
• M2: 600,336 km (0.099 R)
• M3: 1,027,289 km (0.085 R)
• M4: 2,146,430 km (0.09 R)
• M5: 3,463,191 km (0.065 R)
• M6: 4,071,904 km (0.094 R)
• M7: 4,413,137 km (0.087 R)
• M8: 4,681,366 km (0.101 R)
• M9: 6,470,856 km (0.105 R)
• M10: 6,817,923 km (0.112 R)
• M11: 7,269,409 km (0.051 R)
• M12: 7,772,806 km (0.084 R)
• M13: 8,990,383 km (0.054 R)
• M14: 12,538,695 km (0.064 R)
• M15: 14,844,148 km (0.074 R)
• M16: 15,144,540 km (0.113 R)
• M17: 18,781,414 km (0.115 R)
• M18: 19,548,851 km (0.043 R)
• M19: 20,092,340 km (0.039 R)

Kuiper Belt

Range: 30.3 - 52.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 12,701 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit