🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.78 AU - 0.82 AU

Year: 261 Days

Day: 42.7 Hours

Environment

Temp: 98 °C

Axial Tilt: 44 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.97 AU - 1.35 AU

Year: 456 Days

Day: 23.7 Hours

Environment

Temp: 10 °C

Axial Tilt: 26.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.25 AU - 1.69 AU

Year: 651 Days

Day: 36.7 Hours

Environment

Temp: -30 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 39,663,941 km

• M1: 83,625 km (0.089 R)
• M2: 905,366 km (0.1 R)

Asteroid Belt

Center: 3.72 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.9

Radius: 13.9

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 4.64 AU - 7.28 AU

Year: 5314 Days

Day: 10.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,663,941 km

• M1: 172,935 km (0.041 R)
• M2: 614,249 km (0.109 R)
• M3: 1,600,697 km (0.072 R)
• M4: 2,546,605 km (0.056 R)
• M5: 3,038,183 km (0.059 R)
• M6: 3,485,630 km (0.092 R)
• M7: 5,270,632 km (0.115 R)
• M8: 6,171,810 km (0.104 R)
• M9: 7,033,793 km (0.082 R)
• M10: 9,080,292 km (0.067 R)
• M11: 10,196,142 km (0.045 R)
• M12: 11,594,882 km (0.119 R)
• M13: 12,189,085 km (0.119 R)
• M14: 14,543,307 km (0.049 R)
• M15: 15,234,748 km (0.059 R)
• M16: 17,249,981 km (0.03 R)
• M17: 20,922,309 km (0.113 R)
• M18: 21,878,689 km (0.112 R)
• M19: 23,720,687 km (0.05 R)
• M20: 25,498,209 km (0.085 R)
• M21: 27,449,863 km (0.081 R)
• M22: 31,362,595 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.4

Radius: 10.9

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 6.11 AU - 7.77 AU

Year: 6678 Days

Day: 11.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 39,663,941 km

• M1: 138,079 km (0.096 R)
• M2: 745,745 km (0.12 R)
• M3: 1,129,913 km (0.08 R)
• M4: 2,534,936 km (0.115 R)
• M5: 2,920,150 km (0.116 R)
• M6: 4,929,848 km (0.085 R)
• M7: 5,379,091 km (0.077 R)
• M8: 7,077,326 km (0.117 R)
• M9: 7,968,331 km (0.102 R)
• M10: 9,240,810 km (0.108 R)
• M11: 10,841,358 km (0.114 R)
• M12: 11,192,613 km (0.057 R)
• M13: 12,400,766 km (0.119 R)
• M14: 12,840,733 km (0.089 R)
• M15: 13,810,277 km (0.077 R)
• M16: 14,283,156 km (0.108 R)
• M17: 15,575,981 km (0.063 R)
• M18: 16,480,300 km (0.099 R)
• M19: 17,693,838 km (0.099 R)
• M20: 18,749,849 km (0.032 R)
• M21: 19,403,442 km (0.076 R)
• M22: 24,325,362 km (0.099 R)
• M23: 25,453,629 km (0.11 R)
• M24: 25,807,727 km (0.064 R)
• M25: 27,257,181 km (0.078 R)
• M26: 31,420,490 km (0.056 R)
• M27: 32,239,239 km (0.067 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 16,175 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit