🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.55 AU - 0.83 AU

Year: 201 Days

Day: 27.7 Hours

Environment

Temp: 197 °C

Axial Tilt: 26.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.07 AU - 2.47 AU

Year: 1202 Days

Day: 26.3 Hours

Environment

Temp: -56 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.04 AU - 2.8 AU

Year: 1323 Days

Day: 24 Hours

Environment

Temp: -82 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.36 AU - 3.48 AU

Year: 2223 Days

Day: 15.3 Hours

Environment

Temp: -105 °C

Axial Tilt: 45 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,239,420 km

• M1: 2,367,087 km (0.101 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.13 AU - 3.75 AU

Year: 2242 Days

Day: 31.3 Hours

Environment

Temp: -107 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.1 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.8

Radius: 9.8

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 10.4 AU - 11.1 AU

Year: 12388 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,239,420 km

• M1: 122,072 km (0.11 R)
• M2: 489,335 km (0.08 R)
• M3: 1,581,698 km (0.08 R)
• M4: 1,968,858 km (0.112 R)
• M5: 2,365,741 km (0.089 R)
• M6: 3,550,855 km (0.082 R)
• M7: 4,065,621 km (0.034 R)
• M8: 4,945,257 km (0.05 R)
• M9: 5,399,137 km (0.116 R)
• M10: 6,114,813 km (0.095 R)
• M11: 6,495,839 km (0.114 R)
• M12: 10,139,444 km (0.096 R)
• M13: 10,674,257 km (0.11 R)
• M14: 11,959,901 km (0.116 R)
• M15: 13,693,740 km (0.097 R)
• M16: 14,774,286 km (0.106 R)
• M17: 15,589,295 km (0.099 R)
• M18: 18,642,887 km (0.075 R)
• M19: 20,044,319 km (0.101 R)
• M20: 22,074,063 km (0.058 R)
• M21: 27,274,534 km (0.091 R)
• M22: 27,647,781 km (0.092 R)
• M23: 35,292,980 km (0.11 R)
• M24: 37,317,338 km (0.118 R)
• M25: 39,895,059 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513.4

Radius: 7

Gravity: 10.48 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 17.08 AU - 19.84 AU

Year: 27876 Days

Day: 22.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,239,420 km

• M1: 87,216 km (0.093 R)
• M2: 349,760 km (0.086 R)
• M3: 931,396 km (0.098 R)
• M4: 1,292,974 km (0.077 R)
• M5: 1,601,296 km (0.087 R)
• M6: 3,594,089 km (0.081 R)
• M7: 5,080,493 km (0.044 R)
• M8: 6,515,586 km (0.118 R)
• M9: 6,841,709 km (0.04 R)
• M10: 7,730,171 km (0.119 R)
• M11: 7,990,172 km (0.109 R)
• M12: 8,363,867 km (0.065 R)
• M13: 12,768,477 km (0.108 R)
• M14: 15,135,864 km (0.088 R)
• M15: 29,384,762 km (0.059 R)
• M16: 40,345,050 km (0.085 R)
• M17: 42,887,017 km (0.117 R)
• M18: 43,867,032 km (0.087 R)
• M19: 53,557,534 km (0.105 R)
• M20: 66,954,322 km (0.116 R)

Kuiper Belt

Range: 31.2 - 47.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 15,127 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit