🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 33.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.2

Radius: 13.3

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.73 AU - 1.19 AU

Year: 617 Days

Day: 11.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 131 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,313,865 km

• M1: 165,904 km (0.03 R)
• M2: 592,108 km (0.094 R)
• M3: 1,062,594 km (0.112 R)
• M4: 1,478,177 km (0.081 R)
• M5: 1,896,602 km (0.114 R)
• M6: 2,333,128 km (0.111 R)
• M7: 2,837,423 km (0.082 R)
• M8: 3,737,852 km (0.08 R)
• M9: 4,378,580 km (0.072 R)
• M10: 5,452,094 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.6

Radius: 10.5

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.23 AU - 5.23 AU

Year: 6748 Days

Day: 7.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,313,865 km

• M1: 130,599 km (0.1 R)
• M2: 479,760 km (0.084 R)
• M3: 1,123,330 km (0.09 R)
• M4: 2,092,575 km (0.097 R)
• M5: 4,646,211 km (0.117 R)
• M6: 4,974,428 km (0.105 R)
• M7: 6,150,567 km (0.047 R)
• M8: 7,956,662 km (0.104 R)
• M9: 9,213,583 km (0.114 R)
• M10: 9,822,895 km (0.066 R)
• M11: 10,834,177 km (0.089 R)
• M12: 12,427,394 km (0.085 R)
• M13: 13,225,649 km (0.12 R)
• M14: 18,273,081 km (0.103 R)
• M15: 19,375,168 km (0.12 R)
• M16: 23,025,955 km (0.108 R)
• M17: 24,311,000 km (0.096 R)
• M18: 27,553,684 km (0.056 R)
• M19: 28,000,832 km (0.075 R)
• M20: 29,837,894 km (0.113 R)
• M21: 30,690,153 km (0.055 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 971.3

Radius: 4.9

Gravity: 40.45 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.26 AU - 11.22 AU

Year: 19941 Days

Day: 20.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 85,313,865 km

• M1: 62,831 km (0.106 R)
• M2: 248,183 km (0.046 R)
• M3: 430,094 km (0.08 R)
• M4: 583,432 km (0.096 R)
• M5: 896,390 km (0.088 R)
• M6: 1,098,198 km (0.119 R)
• M7: 1,314,666 km (0.06 R)
• M8: 2,140,147 km (0.108 R)
• M9: 3,014,547 km (0.119 R)
• M10: 3,653,778 km (0.111 R)
• M11: 4,206,543 km (0.096 R)
• M12: 5,196,282 km (0.115 R)
• M13: 7,030,053 km (0.097 R)
• M14: 7,881,564 km (0.112 R)
• M15: 8,144,557 km (0.114 R)
• M16: 9,607,624 km (0.115 R)
• M17: 11,773,652 km (0.105 R)
• M18: 12,117,428 km (0.09 R)
• M19: 14,872,871 km (0.074 R)
• M20: 16,015,948 km (0.078 R)
• M21: 19,127,584 km (0.034 R)
• M22: 21,479,861 km (0.079 R)
• M23: 23,258,131 km (0.09 R)
• M24: 31,881,401 km (0.111 R)
• M25: 34,328,074 km (0.069 R)
• M26: 42,093,998 km (0.071 R)
• M27: 46,382,072 km (0.082 R)
• M28: 51,864,535 km (0.071 R)
• M29: 53,159,454 km (0.118 R)
• M30: 57,173,763 km (0.04 R)
• M31: 57,960,648 km (0.062 R)
• M32: 59,555,960 km (0.084 R)
• M33: 60,975,643 km (0.11 R)
• M34: 62,003,381 km (0.046 R)
• M35: 68,193,292 km (0.098 R)
• M36: 68,413,799 km (0.08 R)
• M37: 70,194,911 km (0.03 R)
• M38: 76,671,901 km (0.043 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 18,195 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit