🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.91 AU - 1.07 AU

Year: 349 Days

Day: 37.9 Hours

Environment

Temp: 114 °C

Axial Tilt: 13 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.17 AU - 1.91 AU

Year: 678 Days

Day: 21.1 Hours

Environment

Temp: -21 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.85 AU - 1.93 AU

Year: 922 Days

Day: 26.8 Hours

Environment

Temp: -47 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.84 AU - 4.44 AU

Year: 2464 Days

Day: 36.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 24.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Ice Giant

Semi-Major Axis: 19.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.7

Radius: 5.7

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 17.26 AU - 22.28 AU

Year: 31185 Days

Day: 17.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,599,556 km

• M1: 71,657 km (0.083 R)
• M2: 441,463 km (0.061 R)
• M3: 669,002 km (0.118 R)
• M4: 1,172,399 km (0.082 R)
• M5: 1,383,481 km (0.101 R)
• M6: 2,824,408 km (0.091 R)
• M7: 3,987,830 km (0.105 R)
• M8: 6,147,575 km (0.073 R)
• M9: 10,796,329 km (0.045 R)
• M10: 11,431,521 km (0.1 R)
• M11: 13,552,819 km (0.076 R)
• M12: 17,911,652 km (0.084 R)
• M13: 21,464,602 km (0.042 R)
• M14: 23,788,156 km (0.049 R)
• M15: 24,762,636 km (0.069 R)
• M16: 26,583,542 km (0.115 R)
• M17: 27,315,075 km (0.08 R)
• M18: 27,632,671 km (0.117 R)
• M19: 30,602,937 km (0.086 R)
• M20: 31,988,812 km (0.089 R)
• M21: 32,223,830 km (0.12 R)
• M22: 42,171,939 km (0.08 R)
• M23: 43,309,780 km (0.062 R)
• M24: 48,065,945 km (0.085 R)
• M25: 50,093,595 km (0.093 R)
• M26: 53,653,875 km (0.065 R)
• M27: 55,495,574 km (0.1 R)

Kuiper Belt

Range: 30.9 - 59.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 16,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit