🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.81 AU - 1.01 AU

Year: 309 Days

Day: 15.8 Hours

Environment

Temp: 101 °C

Axial Tilt: 24.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.58 AU - 3.32 AU

Year: 1806 Days

Day: 34 Hours

Environment

Temp: -98 °C

Axial Tilt: 18.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.89 AU - 4.95 AU

Year: 3312 Days

Day: 26.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 104,212,856 km

• M1: 121,773 km (0.115 R)
• M2: 490,681 km (0.086 R)

Asteroid Belt

Center: 7.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.2

Radius: 13.4

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 7.59 AU - 12.07 AU

Year: 10986 Days

Day: 7.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 104,212,856 km

• M1: 166,802 km (0.034 R)
• M2: 1,536,819 km (0.076 R)
• M3: 2,158,847 km (0.097 R)
• M4: 2,650,126 km (0.081 R)
• M5: 3,504,330 km (0.074 R)
• M6: 4,868,214 km (0.098 R)
• M7: 6,005,607 km (0.045 R)
• M8: 6,792,342 km (0.103 R)
• M9: 7,774,452 km (0.108 R)
• M10: 14,285,400 km (0.112 R)
• M11: 17,399,878 km (0.111 R)
• M12: 17,922,124 km (0.067 R)
• M13: 25,507,035 km (0.107 R)
• M14: 28,072,190 km (0.106 R)
• M15: 29,627,858 km (0.071 R)
• M16: 33,024,029 km (0.045 R)
• M17: 34,056,703 km (0.04 R)
• M18: 37,038,338 km (0.086 R)
• M19: 42,701,815 km (0.031 R)
• M20: 45,597,730 km (0.089 R)
• M21: 46,878,138 km (0.041 R)

Planet 5 - Ice Giant

Semi-Major Axis: 19.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 743.8

Radius: 6.5

Gravity: 17.6 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 18.12 AU - 20.94 AU

Year: 30764 Days

Day: 21.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 104,212,856 km

• M1: 80,932 km (0.078 R)
• M2: 523,593 km (0.119 R)
• M3: 1,612,216 km (0.105 R)
• M4: 3,688,635 km (0.067 R)
• M5: 6,305,550 km (0.082 R)
• M6: 6,947,176 km (0.083 R)
• M7: 7,962,347 km (0.083 R)
• M8: 9,954,542 km (0.072 R)
• M9: 12,034,251 km (0.104 R)
• M10: 12,634,288 km (0.092 R)
• M11: 13,651,703 km (0.113 R)
• M12: 15,759,836 km (0.109 R)
• M13: 19,980,740 km (0.119 R)
• M14: 22,349,174 km (0.064 R)
• M15: 39,272,732 km (0.086 R)
• M16: 44,187,471 km (0.111 R)
• M17: 55,216,125 km (0.109 R)
• M18: 65,623,948 km (0.111 R)
• M19: 95,119,263 km (0.094 R)
• M20: 98,089,080 km (0.12 R)

Kuiper Belt

Range: 30.8 - 60.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 15,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit