🌌 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: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.49 AU - 0.57 AU

Year: 137 Days

Day: 27.7 Hours

Environment

Temp: 211 °C

Axial Tilt: 22.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.57 AU - 0.71 AU

Year: 182 Days

Day: 31.4 Hours

Environment

Temp: 213 °C

Axial Tilt: 15.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.95 AU - 1.07 AU

Year: 360 Days

Day: 12.5 Hours

Environment

Temp: 103 °C

Axial Tilt: 13.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.92 AU - 2.24 AU

Year: 1064 Days

Day: 15.5 Hours

Environment

Temp: -62 °C

Axial Tilt: 17.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.55 AU - 3.61 AU

Year: 1918 Days

Day: 47.9 Hours

Environment

Temp: -95 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,662,218 km

• M1: 66,721 km (0.092 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.49 AU - 5.21 AU

Year: 3219 Days

Day: 46.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 28,662,218 km

• M1: 42,187 km (0.046 R)
• M2: 124,166 km (0.061 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.43 AU - 5.51 AU

Year: 3353 Days

Day: 25.3 Hours

Environment

Temp: -115 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 16.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26

Radius: 6.6

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 12.82 AU - 20.14 AU

Year: 23734 Days

Day: 15.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,662,218 km

• M1: 83,775 km (0.099 R)
• M2: 2,199,537 km (0.06 R)
• M3: 2,583,705 km (0.085 R)
• M4: 4,077,589 km (0.116 R)
• M5: 5,543,798 km (0.089 R)
• M6: 10,096,659 km (0.114 R)
• M7: 17,082,282 km (0.063 R)
• M8: 17,695,932 km (0.053 R)
• M9: 18,324,094 km (0.11 R)
• M10: 22,848,980 km (0.058 R)
• M11: 23,744,623 km (0.119 R)
• M12: 25,131,694 km (0.116 R)
• M13: 26,490,492 km (0.052 R)

Kuiper Belt

Range: 30.9 - 56.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 14,144 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit