🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.46 AU - 0.72 AU

Year: 172 Days

Day: 24.5 Hours

Environment

Temp: 174 °C

Axial Tilt: 46 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.52 AU - 0.72 AU

Year: 185 Days

Day: 29.3 Hours

Environment

Temp: 206 °C

Axial Tilt: 10.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,393,727 km

• M1: 589,715 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.53 AU - 0.81 AU

Year: 208 Days

Day: 30.8 Hours

Environment

Temp: 142 °C

Axial Tilt: 39 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.14 AU - 1.82 AU

Year: 682 Days

Day: 39.6 Hours

Environment

Temp: -47 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.81 AU - 2.37 AU

Year: 1144 Days

Day: 37.8 Hours

Environment

Temp: -90 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.75 AU - 2.65 AU

Year: 1236 Days

Day: 22.4 Hours

Environment

Temp: -91 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.58 AU - 4.26 AU

Year: 2940 Days

Day: 39.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.5

Radius: 12

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.24 AU - 11.96 AU

Year: 13071 Days

Day: 8.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,393,727 km

• M1: 160,369 km (0.045 R)
• M2: 850,613 km (0.062 R)
• M3: 1,598,004 km (0.088 R)
• M4: 3,592,294 km (0.093 R)
• M5: 4,136,531 km (0.045 R)
• M6: 5,283,647 km (0.098 R)
• M7: 5,874,110 km (0.035 R)
• M8: 6,673,711 km (0.103 R)
• M9: 12,746,038 km (0.092 R)
• M10: 14,788,797 km (0.103 R)
• M11: 15,738,444 km (0.032 R)
• M12: 17,517,761 km (0.105 R)
• M13: 21,197,869 km (0.086 R)
• M14: 21,842,037 km (0.067 R)
• M15: 22,689,659 km (0.08 R)
• M16: 34,512,378 km (0.11 R)
• M17: 37,101,469 km (0.037 R)
• M18: 46,408,251 km (0.028 R)
• M19: 49,557,735 km (0.072 R)
• M20: 59,310,769 km (0.064 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 16,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit