🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.46 AU - 0.66 AU

Year: 275 Days

Day: 25.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 47.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 8.9

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.74 AU - 0.9 AU

Year: 487 Days

Day: 9.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,365,905 km

• M1: 110,852 km (0.093 R)
• M2: 534,663 km (0.052 R)
• M3: 891,603 km (0.096 R)
• M4: 1,493,735 km (0.096 R)
• M5: 1,917,994 km (0.108 R)
• M6: 3,168,782 km (0.058 R)
• M7: 3,755,954 km (0.115 R)
• M8: 4,034,954 km (0.107 R)
• M9: 5,130,609 km (0.082 R)
• M10: 5,576,261 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.4

Radius: 9.6

Gravity: 10.4 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.35 AU - 2.23 AU

Year: 1571 Days

Day: 6.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 75.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,365,905 km

• M1: 119,529 km (0.082 R)
• M2: 434,582 km (0.096 R)
• M3: 739,013 km (0.101 R)
• M4: 1,088,624 km (0.081 R)
• M5: 1,737,878 km (0.066 R)
• M6: 2,222,875 km (0.044 R)
• M7: 2,767,411 km (0.09 R)
• M8: 4,011,018 km (0.116 R)
• M9: 4,412,688 km (0.097 R)
• M10: 4,925,659 km (0.112 R)
• M11: 5,523,901 km (0.092 R)
• M12: 6,194,848 km (0.072 R)
• M13: 6,524,262 km (0.079 R)
• M14: 7,612,288 km (0.088 R)
• M15: 8,139,620 km (0.067 R)
• M16: 9,332,962 km (0.064 R)
• M17: 9,665,668 km (0.114 R)
• M18: 11,792,052 km (0.065 R)
• M19: 13,441,817 km (0.045 R)
• M20: 14,388,024 km (0.078 R)
• M21: 15,609,042 km (0.108 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 74.6

Radius: 7.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.05 AU - 7.65 AU

Year: 13072 Days

Day: 17.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,365,905 km

• M1: 91,255 km (0.08 R)
• M2: 339,737 km (0.055 R)
• M3: 587,022 km (0.098 R)
• M4: 1,220,569 km (0.073 R)
• M5: 1,552,228 km (0.094 R)
• M6: 2,660,000 km (0.041 R)
• M7: 4,506,037 km (0.041 R)
• M8: 6,190,809 km (0.085 R)
• M9: 8,554,006 km (0.12 R)
• M10: 9,286,737 km (0.073 R)
• M11: 10,701,334 km (0.102 R)
• M12: 11,098,516 km (0.08 R)
• M13: 11,689,727 km (0.097 R)
• M14: 13,899,138 km (0.12 R)
• M15: 18,175,692 km (0.106 R)
• M16: 24,984,041 km (0.059 R)
• M17: 25,448,842 km (0.097 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 13,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit