🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.57 AU - 0.63 AU

Year: 163 Days

Day: 30.9 Hours

Environment

Temp: 187 °C

Axial Tilt: 6.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.54 AU - 0.66 AU

Year: 163 Days

Day: 37.2 Hours

Environment

Temp: 248 °C

Axial Tilt: 2.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.18 AU - 1.22 AU

Year: 460 Days

Day: 30.7 Hours

Environment

Temp: 37 °C

Axial Tilt: 11.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 29,890,201 km

• M1: 683,961 km (0.063 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.99 AU - 1.63 AU

Year: 525 Days

Day: 27.5 Hours

Environment

Temp: 23 °C

Axial Tilt: 17.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 29,890,201 km

• M1: 69,264 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.46 AU - 1.72 AU

Year: 701 Days

Day: 45.6 Hours

Environment

Temp: -7 °C

Axial Tilt: 15.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.36 AU - 1.84 AU

Year: 708 Days

Day: 20.3 Hours

Environment

Temp: -0 °C

Axial Tilt: 2.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 29,890,201 km

• M1: 45,029 km (0.116 R)
• M2: 86,468 km (0.031 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.56 AU - 3.88 AU

Year: 2021 Days

Day: 26.6 Hours

Environment

Temp: -96 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.3

Radius: 12

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.46 AU - 8.12 AU

Year: 6886 Days

Day: 7.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,890,201 km

• M1: 159,023 km (0.096 R)
• M2: 581,337 km (0.103 R)
• M3: 1,035,217 km (0.057 R)
• M4: 1,872,965 km (0.084 R)
• M5: 3,316,585 km (0.114 R)
• M6: 4,141,019 km (0.09 R)
• M7: 10,526,305 km (0.114 R)
• M8: 11,671,476 km (0.057 R)
• M9: 14,046,791 km (0.108 R)
• M10: 16,970,981 km (0.074 R)
• M11: 20,904,358 km (0.1 R)
• M12: 27,545,606 km (0.108 R)
• M13: 28,658,464 km (0.12 R)

Kuiper Belt

Range: 31.4 - 55.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 15,727 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit