🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.42 AU - 0.66 AU

Year: 256 Days

Day: 45.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.2

Radius: 13.6

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.57 AU - 0.89 AU

Year: 403 Days

Day: 6.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 21,048,851 km

• M1: 169,195 km (0.097 R)
• M2: 618,587 km (0.119 R)
• M3: 1,104,631 km (0.112 R)
• M4: 1,796,072 km (0.103 R)
• M5: 2,437,099 km (0.12 R)
• M6: 3,150,232 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.8

Radius: 10.4

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.65 AU - 1.05 AU

Year: 506 Days

Day: 5.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,048,851 km

• M1: 129,402 km (0.079 R)
• M2: 535,261 km (0.078 R)
• M3: 929,302 km (0.069 R)
• M4: 1,496,577 km (0.098 R)
• M5: 1,843,644 km (0.12 R)
• M6: 2,346,443 km (0.104 R)
• M7: 3,326,309 km (0.103 R)
• M8: 3,814,147 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.5

Radius: 13

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.31 AU - 3.61 AU

Year: 3288 Days

Day: 14.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 178.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,048,851 km

• M1: 161,865 km (0.065 R)
• M2: 676,332 km (0.111 R)
• M3: 1,096,104 km (0.066 R)
• M4: 1,590,674 km (0.113 R)
• M5: 2,014,635 km (0.088 R)
• M6: 2,589,090 km (0.049 R)
• M7: 3,031,302 km (0.053 R)
• M8: 6,845,898 km (0.08 R)
• M9: 7,264,772 km (0.103 R)
• M10: 8,489,081 km (0.117 R)
• M11: 9,115,148 km (0.067 R)
• M12: 10,538,272 km (0.104 R)
• M13: 11,139,057 km (0.113 R)
• M14: 12,191,179 km (0.082 R)
• M15: 12,988,985 km (0.078 R)
• M16: 14,011,037 km (0.086 R)
• M17: 14,590,729 km (0.072 R)
• M18: 16,267,721 km (0.059 R)
• M19: 16,962,454 km (0.037 R)
• M20: 17,454,930 km (0.1 R)
• M21: 20,551,606 km (0.117 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 10,571 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit