🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.55 AU - 0.57 AU

Year: 149 Days

Day: 15.9 Hours

Environment

Temp: 224 °C

Axial Tilt: 1.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.73 AU - 1.07 AU

Year: 303 Days

Day: 46.5 Hours

Environment

Temp: 152 °C

Axial Tilt: 44.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.96 AU - 1.24 AU

Year: 409 Days

Day: 35.8 Hours

Environment

Temp: 46 °C

Axial Tilt: 33.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.04 AU - 1.4 AU

Year: 478 Days

Day: 41.2 Hours

Environment

Temp: 9 °C

Axial Tilt: 9.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 33,505,924 km

• M1: 285,433 km (0.07 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.4 AU - 1.4 AU

Year: 588 Days

Day: 47 Hours

Environment

Temp: -8 °C

Axial Tilt: 38.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 33,505,924 km

• M1: 350,059 km (0.118 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.18 AU - 2.38 AU

Year: 1221 Days

Day: 17.2 Hours

Environment

Temp: -67 °C

Axial Tilt: 21 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,505,924 km

• M1: 83,924 km (0.106 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.99 AU - 3.15 AU

Year: 1462 Days

Day: 34.5 Hours

Environment

Temp: -83 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 33,505,924 km

• M1: 710,141 km (0.081 R)
• M2: 1,111,811 km (0.11 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.53 AU - 5.17 AU

Year: 3219 Days

Day: 16.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,505,924 km

• M1: 280,795 km (0.068 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.4

Radius: 12

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.65 AU - 9.23 AU

Year: 7199 Days

Day: 10.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 33,505,924 km

• M1: 149,299 km (0.051 R)
• M2: 670,498 km (0.095 R)
• M3: 1,095,655 km (0.119 R)
• M4: 2,037,972 km (0.109 R)
• M5: 2,876,019 km (0.083 R)
• M6: 4,921,172 km (0.084 R)
• M7: 6,070,233 km (0.099 R)
• M8: 7,757,846 km (0.083 R)
• M9: 9,739,121 km (0.052 R)
• M10: 11,298,828 km (0.069 R)
• M11: 11,738,347 km (0.108 R)
• M12: 13,831,221 km (0.092 R)
• M13: 16,909,646 km (0.114 R)
• M14: 18,743,716 km (0.085 R)
• M15: 19,153,315 km (0.109 R)
• M16: 19,708,771 km (0.031 R)
• M17: 20,634,483 km (0.115 R)
• M18: 21,813,165 km (0.114 R)
• M19: 22,495,630 km (0.099 R)
• M20: 23,270,547 km (0.078 R)
• M21: 23,903,197 km (0.093 R)
• M22: 24,791,958 km (0.047 R)
• M23: 25,954,632 km (0.03 R)
• M24: 27,943,237 km (0.091 R)
• M25: 28,658,165 km (0.056 R)
• M26: 29,202,402 km (0.115 R)
• M27: 32,810,254 km (0.071 R)

Kuiper Belt

Range: 30.9 - 54.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 17,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit