🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.44 AU - 0.62 AU

Year: 136 Days

Day: 36.5 Hours

Environment

Temp: 219 °C

Axial Tilt: 20.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.55 AU - 0.71 AU

Year: 176 Days

Day: 14.9 Hours

Environment

Temp: 178 °C

Axial Tilt: 7.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.07 AU - 1.13 AU

Year: 405 Days

Day: 35.1 Hours

Environment

Temp: 22 °C

Axial Tilt: 7.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.19 AU - 1.21 AU

Year: 462 Days

Day: 47.3 Hours

Environment

Temp: 11 °C

Axial Tilt: 40 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 50,358,431 km

• M1: 35,604 km (0.058 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.26 AU - 2.34 AU

Year: 1226 Days

Day: 18.7 Hours

Environment

Temp: -60 °C

Axial Tilt: 44 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.3 AU - 6.14 AU

Year: 4192 Days

Day: 34 Hours

Environment

Temp: -130 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.7

Radius: 12.6

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 8.63 AU - 9.49 AU

Year: 9585 Days

Day: 8.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 50,358,431 km

• M1: 163,361 km (0.06 R)
• M2: 628,311 km (0.042 R)
• M3: 1,294,470 km (0.09 R)
• M4: 2,095,268 km (0.118 R)
• M5: 3,345,607 km (0.105 R)
• M6: 3,849,602 km (0.12 R)
• M7: 5,502,958 km (0.096 R)
• M8: 6,973,954 km (0.078 R)
• M9: 8,149,793 km (0.094 R)
• M10: 11,000,231 km (0.095 R)
• M11: 11,551,499 km (0.084 R)
• M12: 12,769,375 km (0.119 R)
• M13: 13,316,754 km (0.107 R)
• M14: 14,589,532 km (0.119 R)
• M15: 15,459,294 km (0.066 R)
• M16: 16,936,873 km (0.113 R)
• M17: 17,523,895 km (0.106 R)
• M18: 20,998,455 km (0.082 R)
• M19: 21,505,442 km (0.104 R)
• M20: 22,107,125 km (0.1 R)
• M21: 25,002,292 km (0.1 R)
• M22: 26,247,395 km (0.032 R)
• M23: 28,039,428 km (0.107 R)
• M24: 28,861,468 km (0.118 R)
• M25: 29,383,266 km (0.104 R)
• M26: 30,769,739 km (0.112 R)
• M27: 31,976,545 km (0.106 R)
• M28: 32,423,095 km (0.071 R)
• M29: 35,786,503 km (0.099 R)
• M30: 40,797,883 km (0.113 R)
• M31: 43,334,464 km (0.106 R)
• M32: 44,710,914 km (0.094 R)
• M33: 45,269,662 km (0.107 R)
• M34: 49,015,144 km (0.111 R)

Kuiper Belt

Range: 31.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 18,085 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit