🌌 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: 1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.93 AU - 1.07 AU

Year: 419 Days

Day: 21 Hours

Environment

Temp: -51 °C

Axial Tilt: 18.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.99 AU - 1.41 AU

Year: 551 Days

Day: 16.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.18 AU - 1.22 AU

Year: 551 Days

Day: 40.1 Hours

Environment

Temp: -56 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.4 AU - 1.5 AU

Year: 732 Days

Day: 47.7 Hours

Environment

Temp: -77 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.55 AU - 2.23 AU

Year: 1089 Days

Day: 25.1 Hours

Environment

Temp: -99 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.43 AU - 3.03 AU

Year: 1890 Days

Day: 19 Hours

Environment

Temp: -129 °C

Axial Tilt: 95.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 13.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99

Radius: 6.8

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 11.25 AU - 14.85 AU

Year: 19751 Days

Day: 16.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,598,719 km

• M1: 121,773 km (0.058 R)
• M2: 803,341 km (0.026 R)
• M3: 2,102,299 km (0.055 R)
• M4: 2,556,927 km (0.115 R)
• M5: 4,454,576 km (0.1 R)
• M6: 6,272,190 km (0.048 R)
• M7: 6,694,654 km (0.103 R)
• M8: 7,635,775 km (0.101 R)
• M9: 14,771,743 km (0.117 R)
• M10: 17,567,577 km (0.075 R)
• M11: 18,335,762 km (0.111 R)
• M12: 23,337,866 km (0.097 R)
• M13: 24,436,962 km (0.087 R)
• M14: 30,255,721 km (0.103 R)
• M15: 32,487,122 km (0.11 R)
• M16: 36,148,081 km (0.098 R)
• M17: 37,847,065 km (0.091 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 16,366 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit