🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.79 AU - 0.81 AU

Year: 259 Days

Day: 47.6 Hours

Environment

Temp: 154 °C

Axial Tilt: 30 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.68 AU - 0.96 AU

Year: 269 Days

Day: 23.6 Hours

Environment

Temp: 184 °C

Axial Tilt: 15.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.01 AU - 1.45 AU

Year: 493 Days

Day: 16.2 Hours

Environment

Temp: -0 °C

Axial Tilt: 35.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.63 AU - 4.43 AU

Year: 2926 Days

Day: 32.6 Hours

Environment

Temp: -114 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,866,576 km

• M1: 28,573 km (0.106 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 4.15 AU - 4.81 AU

Year: 3429 Days

Day: 46.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.5

Radius: 9.2

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.18 AU - 6.8 AU

Year: 5979 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,866,576 km

• M1: 114,592 km (0.072 R)
• M2: 460,911 km (0.09 R)
• M3: 776,114 km (0.037 R)
• M4: 1,113,307 km (0.074 R)
• M5: 1,526,945 km (0.099 R)
• M6: 2,151,816 km (0.11 R)
• M7: 2,990,910 km (0.057 R)
• M8: 4,300,340 km (0.1 R)
• M9: 5,197,928 km (0.07 R)
• M10: 5,705,064 km (0.034 R)
• M11: 6,603,100 km (0.055 R)
• M12: 7,459,399 km (0.088 R)
• M13: 8,352,199 km (0.093 R)
• M14: 13,171,494 km (0.031 R)
• M15: 13,563,291 km (0.068 R)
• M16: 16,245,730 km (0.113 R)
• M17: 21,269,376 km (0.095 R)
• M18: 21,808,826 km (0.116 R)
• M19: 22,219,473 km (0.117 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 553 - 11,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit