🌌 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: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.6 AU - 0.78 AU

Year: 204 Days

Day: 20.9 Hours

Environment

Temp: 140 °C

Axial Tilt: 31.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.68 AU - 0.94 AU

Year: 260 Days

Day: 18.1 Hours

Environment

Temp: 185 °C

Axial Tilt: 43.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1 AU - 1.42 AU

Year: 474 Days

Day: 40 Hours

Environment

Temp: 18 °C

Axial Tilt: 161.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.14 AU - 4.32 AU

Year: 3101 Days

Day: 24.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,796,488 km

• M1: 471,832 km (0.078 R)
• M2: 2,931,520 km (0.103 R)

Asteroid Belt

Center: 9.93 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 15.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348.8

Radius: 4.8

Gravity: 15.14 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 13.35 AU - 17.91 AU

Year: 22026 Days

Day: 20.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,796,488 km

• M1: 252,970 km (0.073 R)
• M2: 562,189 km (0.099 R)
• M3: 777,610 km (0.09 R)
• M4: 1,250,788 km (0.076 R)
• M5: 1,480,869 km (0.079 R)
• M6: 2,626,639 km (0.106 R)
• M7: 8,799,496 km (0.08 R)
• M8: 12,111,743 km (0.085 R)
• M9: 12,366,807 km (0.098 R)
• M10: 12,821,734 km (0.098 R)
• M11: 13,765,098 km (0.037 R)
• M12: 14,466,563 km (0.099 R)
• M13: 16,246,927 km (0.114 R)
• M14: 19,705,032 km (0.053 R)
• M15: 21,141,919 km (0.065 R)
• M16: 21,791,922 km (0.115 R)
• M17: 29,961,013 km (0.094 R)
• M18: 30,898,991 km (0.098 R)
• M19: 31,255,782 km (0.112 R)
• M20: 32,098,766 km (0.055 R)
• M21: 35,492,992 km (0.116 R)
• M22: 41,668,393 km (0.054 R)
• M23: 54,865,318 km (0.09 R)

Kuiper Belt

Range: 30.8 - 46.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 15,796 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit