🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.71 AU - 0.77 AU

Year: 222 Days

Day: 41.9 Hours

Environment

Temp: 171 °C

Axial Tilt: 38.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.22 AU - 1.36 AU

Year: 510 Days

Day: 17.1 Hours

Environment

Temp: 16 °C

Axial Tilt: 24.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.26 AU - 1.46 AU

Year: 552 Days

Day: 34.4 Hours

Environment

Temp: 13 °C

Axial Tilt: 26.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 52,299,348 km

• M1: 16,007 km (0.046 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.57 AU - 1.79 AU

Year: 758 Days

Day: 36.3 Hours

Environment

Temp: -21 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,299,348 km

• M1: 326,273 km (0.066 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.76 AU - 2.48 AU

Year: 1075 Days

Day: 28.5 Hours

Environment

Temp: -46 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,299,348 km

• M1: 29,471 km (0.056 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 3.02 AU - 3.42 AU

Year: 2012 Days

Day: 43.5 Hours

Environment

Temp: -88 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.27 AU - 4.47 AU

Year: 3181 Days

Day: 17.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,299,348 km

• M1: 387,010 km (0.118 R)
• M2: 830,567 km (0.097 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.8 AU - 5.14 AU

Year: 3291 Days

Day: 26.2 Hours

Environment

Temp: -110 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,299,348 km

• M1: 111,450 km (0.093 R)

Asteroid Belt

Center: 7.1 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.9

Radius: 10.5

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8.18 AU - 11.26 AU

Year: 10553 Days

Day: 9 Hours

Environment

Temp: -156 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,299,348 km

• M1: 130,898 km (0.088 R)
• M2: 560,543 km (0.075 R)
• M3: 907,161 km (0.091 R)
• M4: 1,776,774 km (0.086 R)
• M5: 3,469,324 km (0.097 R)
• M6: 4,278,350 km (0.09 R)
• M7: 4,758,858 km (0.068 R)
• M8: 6,612,675 km (0.062 R)
• M9: 7,508,317 km (0.066 R)
• M10: 8,390,945 km (0.057 R)
• M11: 10,574,924 km (0.114 R)
• M12: 11,625,849 km (0.094 R)
• M13: 12,265,529 km (0.047 R)
• M14: 19,440,692 km (0.107 R)
• M15: 21,014,611 km (0.101 R)
• M16: 21,442,461 km (0.045 R)
• M17: 22,671,707 km (0.111 R)
• M18: 38,927,311 km (0.062 R)
• M19: 43,738,229 km (0.077 R)

Kuiper Belt

Range: 31.5 - 61.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 19,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit