🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.63 AU - 0.77 AU

Year: 224 Days

Day: 12.4 Hours

Environment

Temp: 117 °C

Axial Tilt: 10.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 25,312,769 km

• M1: 399,875 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.7 AU - 1.08 AU

Year: 321 Days

Day: 43.7 Hours

Environment

Temp: 30 °C

Axial Tilt: 49.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 25,312,769 km

• M1: 198,068 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.18 AU - 1.2 AU

Year: 497 Days

Day: 33.9 Hours

Environment

Temp: -18 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.98 AU - 1.48 AU

Year: 522 Days

Day: 34.4 Hours

Environment

Temp: -39 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 25,312,769 km

• M1: 150,944 km (0.088 R)
• M2: 336,595 km (0.113 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.15 AU - 1.71 AU

Year: 655 Days

Day: 31.5 Hours

Environment

Temp: -46 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.47 AU - 2.93 AU

Year: 1699 Days

Day: 13.7 Hours

Environment

Temp: -107 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.8

Radius: 12.2

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.93 AU - 4.47 AU

Year: 3296 Days

Day: 8.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 114.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,312,769 km

• M1: 151,692 km (0.039 R)
• M2: 614,698 km (0.071 R)
• M3: 1,149,360 km (0.089 R)
• M4: 1,667,268 km (0.049 R)
• M5: 2,166,177 km (0.074 R)
• M6: 2,882,452 km (0.084 R)
• M7: 3,315,687 km (0.098 R)
• M8: 4,617,937 km (0.109 R)
• M9: 5,163,221 km (0.066 R)
• M10: 6,353,721 km (0.101 R)
• M11: 9,195,183 km (0.097 R)
• M12: 10,020,514 km (0.098 R)
• M13: 12,322,975 km (0.084 R)
• M14: 12,889,801 km (0.094 R)
• M15: 13,822,694 km (0.109 R)
• M16: 14,383,087 km (0.077 R)
• M17: 15,603,806 km (0.069 R)
• M18: 15,988,721 km (0.094 R)
• M19: 17,007,632 km (0.111 R)
• M20: 17,949,351 km (0.064 R)
• M21: 19,237,688 km (0.07 R)
• M22: 21,452,783 km (0.098 R)
• M23: 21,997,768 km (0.068 R)
• M24: 24,565,466 km (0.03 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 17,502 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit