🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.51 AU - 0.71 AU

Year: 167 Days

Day: 43.5 Hours

Environment

Temp: 178 °C

Axial Tilt: 6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.27 AU - 1.53 AU

Year: 580 Days

Day: 16.8 Hours

Environment

Temp: -9 °C

Axial Tilt: 13.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 51,118,499 km

• M1: 25,432 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.83 AU - 1.91 AU

Year: 895 Days

Day: 39.6 Hours

Environment

Temp: -41 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,118,499 km

• M1: 65,973 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.04 AU - 2.38 AU

Year: 1149 Days

Day: 20.2 Hours

Environment

Temp: -62 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 51,118,499 km

• M1: 964,906 km (0.058 R)
• M2: 1,013,825 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.16 AU - 5.14 AU

Year: 2958 Days

Day: 16.6 Hours

Environment

Temp: -113 °C

Axial Tilt: 55 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.4

Radius: 3.1

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 14.36 AU - 21.64 AU

Year: 26717 Days

Day: 15.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 51,118,499 km

• M1: 38,596 km (0.094 R)
• M2: 187,895 km (0.092 R)
• M3: 336,446 km (0.052 R)
• M4: 459,565 km (0.094 R)
• M5: 620,382 km (0.095 R)
• M6: 735,872 km (0.073 R)
• M7: 1,066,483 km (0.104 R)
• M8: 1,310,328 km (0.081 R)
• M9: 1,575,116 km (0.115 R)
• M10: 2,625,891 km (0.101 R)
• M11: 5,687,561 km (0.119 R)
• M12: 5,794,225 km (0.118 R)
• M13: 7,345,854 km (0.055 R)
• M14: 8,723,800 km (0.105 R)
• M15: 8,961,062 km (0.109 R)
• M16: 10,422,932 km (0.11 R)
• M17: 11,632,730 km (0.118 R)
• M18: 12,389,845 km (0.067 R)
• M19: 13,303,739 km (0.113 R)
• M20: 14,657,151 km (0.064 R)
• M21: 16,384,856 km (0.11 R)
• M22: 17,861,088 km (0.055 R)
• M23: 19,746,620 km (0.068 R)
• M24: 20,155,471 km (0.029 R)
• M25: 22,284,847 km (0.113 R)
• M26: 31,629,927 km (0.058 R)
• M27: 32,755,501 km (0.116 R)
• M28: 33,674,780 km (0.099 R)
• M29: 39,684,276 km (0.118 R)
• M30: 49,301,624 km (0.096 R)
• M31: 49,601,418 km (0.048 R)

Kuiper Belt

Range: 31.4 - 49.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 421 - 17,473 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit