🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.44 AU - 0.62 AU

Year: 140 Days

Day: 17.7 Hours

Environment

Temp: 180 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.84 AU - 0.86 AU

Year: 283 Days

Day: 44.5 Hours

Environment

Temp: 111 °C

Axial Tilt: 33.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.26 AU - 1.78 AU

Year: 678 Days

Day: 39.8 Hours

Environment

Temp: -28 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 37,136,760 km

• M1: 22,888 km (0.079 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.41 AU - 1.91 AU

Year: 773 Days

Day: 13.1 Hours

Environment

Temp: -34 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.49 AU - 1.95 AU

Year: 816 Days

Day: 37.8 Hours

Environment

Temp: -51 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 12.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 115.6

Radius: 4.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 12.05 AU - 13.59 AU

Year: 16601 Days

Day: 22.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,136,760 km

• M1: 60,886 km (0.075 R)
• M2: 258,356 km (0.104 R)
• M3: 476,469 km (0.095 R)
• M4: 632,051 km (0.086 R)
• M5: 882,328 km (0.11 R)
• M6: 1,132,456 km (0.107 R)
• M7: 1,392,158 km (0.067 R)
• M8: 3,304,916 km (0.061 R)
• M9: 3,483,536 km (0.073 R)
• M10: 3,645,102 km (0.081 R)
• M11: 4,421,814 km (0.089 R)
• M12: 5,673,948 km (0.114 R)
• M13: 7,331,343 km (0.104 R)
• M14: 8,600,232 km (0.063 R)
• M15: 12,614,392 km (0.098 R)
• M16: 15,514,646 km (0.114 R)
• M17: 17,722,411 km (0.074 R)
• M18: 18,340,101 km (0.11 R)
• M19: 19,763,973 km (0.075 R)
• M20: 20,353,538 km (0.1 R)
• M21: 21,878,838 km (0.113 R)
• M22: 26,998,825 km (0.1 R)
• M23: 29,119,824 km (0.103 R)
• M24: 32,049,848 km (0.096 R)
• M25: 33,585,919 km (0.105 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: 175 - 10,977 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit