🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.45 AU - 0.69 AU

Year: 153 Days

Day: 45.5 Hours

Environment

Temp: 198 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.77 AU - 0.81 AU

Year: 250 Days

Day: 33.7 Hours

Environment

Temp: 153 °C

Axial Tilt: 20.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.96 AU - 1.52 AU

Year: 492 Days

Day: 30.2 Hours

Environment

Temp: -1 °C

Axial Tilt: 28.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.93 AU - 2.63 AU

Year: 1227 Days

Day: 24.9 Hours

Environment

Temp: -73 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,375,783 km

• M1: 213,327 km (0.114 R)
• M2: 618,587 km (0.082 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.62 AU - 5.52 AU

Year: 3482 Days

Day: 23.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,375,783 km

• M1: 3,235,652 km (0.1 R)

Planet 6 - Terrestrial

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.87 AU - 6.13 AU

Year: 3985 Days

Day: 29.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.3

Radius: 14.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 7.15 AU - 8.63 AU

Year: 7900 Days

Day: 10.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,375,783 km

• M1: 180,565 km (0.113 R)
• M2: 1,045,988 km (0.092 R)
• M3: 1,721,722 km (0.037 R)
• M4: 2,851,485 km (0.114 R)
• M5: 3,434,019 km (0.087 R)
• M6: 4,145,955 km (0.039 R)
• M7: 4,784,888 km (0.117 R)
• M8: 6,780,823 km (0.114 R)
• M9: 7,517,742 km (0.069 R)
• M10: 9,239,464 km (0.102 R)
• M11: 9,731,042 km (0.109 R)
• M12: 12,619,029 km (0.08 R)
• M13: 13,678,332 km (0.084 R)
• M14: 14,917,152 km (0.117 R)
• M15: 15,408,431 km (0.097 R)
• M16: 15,973,911 km (0.112 R)
• M17: 17,213,329 km (0.057 R)
• M18: 27,471,555 km (0.092 R)
• M19: 30,606,677 km (0.078 R)
• M20: 31,803,759 km (0.049 R)
• M21: 35,691,210 km (0.076 R)

Kuiper Belt

Range: 30.8 - 60.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 10,785 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit