🌌 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: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.7 AU - 0.84 AU

Year: 239 Days

Day: 45.2 Hours

Environment

Temp: 201 °C

Axial Tilt: 20.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.78 AU - 0.9 AU

Year: 272 Days

Day: 44.6 Hours

Environment

Temp: 121 °C

Axial Tilt: 6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.48 AU - 1.54 AU

Year: 655 Days

Day: 41.4 Hours

Environment

Temp: -20 °C

Axial Tilt: 137.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 24,623,067 km

• M1: 1,371,663 km (0.065 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.39 AU - 1.69 AU

Year: 675 Days

Day: 41.2 Hours

Environment

Temp: 3 °C

Axial Tilt: 49.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 24,623,067 km

• M1: 220,058 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.86 AU - 6.42 AU

Year: 4115 Days

Day: 14.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.93 AU - 5.59 AU

Year: 4260 Days

Day: 12.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.5

Radius: 13.7

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 5.41 AU - 7.31 AU

Year: 5663 Days

Day: 9.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,623,067 km

• M1: 171,888 km (0.105 R)
• M2: 678,875 km (0.119 R)
• M3: 1,301,801 km (0.111 R)
• M4: 1,868,029 km (0.093 R)
• M5: 2,443,532 km (0.085 R)
• M6: 3,082,614 km (0.084 R)
• M7: 3,608,600 km (0.09 R)
• M8: 4,396,083 km (0.047 R)
• M9: 5,970,002 km (0.108 R)
• M10: 8,029,965 km (0.111 R)
• M11: 8,593,650 km (0.086 R)
• M12: 11,160,749 km (0.025 R)
• M13: 11,729,819 km (0.106 R)
• M14: 12,318,337 km (0.094 R)
• M15: 13,603,533 km (0.049 R)
• M16: 16,551,808 km (0.089 R)
• M17: 18,841,253 km (0.107 R)
• M18: 20,610,248 km (0.113 R)
• M19: 21,069,364 km (0.104 R)

Kuiper Belt

Range: 31.1 - 56.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 12,477 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit