🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.89 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.72 AU - 1.84 AU

Year: 872 Days

Day: 22.3 Hours

Environment

Temp: -66 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.01 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.3

Radius: 12.2

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.11 AU - 7.37 AU

Year: 5722 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,154,983 km

• M1: 151,692 km (0.05 R)
• M2: 656,884 km (0.086 R)
• M3: 1,823,598 km (0.075 R)
• M4: 2,584,303 km (0.034 R)
• M5: 3,105,203 km (0.08 R)
• M6: 5,691,750 km (0.091 R)
• M7: 6,388,427 km (0.103 R)
• M8: 7,952,623 km (0.029 R)
• M9: 10,012,735 km (0.068 R)
• M10: 10,802,313 km (0.077 R)
• M11: 15,559,824 km (0.116 R)
• M12: 16,499,299 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.6

Radius: 10.9

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.29 AU - 9.81 AU

Year: 9994 Days

Day: 5.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,154,983 km

• M1: 168,896 km (0.072 R)
• M2: 711,936 km (0.116 R)
• M3: 1,401,732 km (0.114 R)
• M4: 1,761,665 km (0.11 R)
• M5: 2,201,482 km (0.071 R)
• M6: 2,734,799 km (0.102 R)
• M7: 3,121,958 km (0.052 R)
• M8: 3,620,119 km (0.093 R)
• M9: 4,115,886 km (0.108 R)
• M10: 6,568,095 km (0.119 R)
• M11: 9,667,762 km (0.056 R)
• M12: 11,370,485 km (0.108 R)
• M13: 14,255,331 km (0.102 R)
• M14: 14,899,050 km (0.096 R)
• M15: 18,487,454 km (0.079 R)
• M16: 22,100,093 km (0.029 R)
• M17: 27,812,488 km (0.058 R)
• M18: 30,581,545 km (0.082 R)
• M19: 35,014,279 km (0.11 R)
• M20: 37,021,583 km (0.084 R)
• M21: 46,657,482 km (0.046 R)

Planet 4 - Ice Giant

Semi-Major Axis: 14.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.1

Radius: 6.9

Gravity: 18.17 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 13.48 AU - 16.28 AU

Year: 21071 Days

Day: 19.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,154,983 km

• M1: 86,168 km (0.07 R)
• M2: 461,061 km (0.098 R)
• M3: 697,425 km (0.081 R)
• M4: 1,306,438 km (0.112 R)
• M5: 1,741,618 km (0.101 R)
• M6: 3,115,226 km (0.035 R)
• M7: 3,764,481 km (0.096 R)
• M8: 5,653,603 km (0.118 R)
• M9: 7,136,566 km (0.114 R)
• M10: 8,805,630 km (0.081 R)
• M11: 10,094,116 km (0.039 R)
• M12: 11,238,091 km (0.101 R)
• M13: 11,978,302 km (0.115 R)
• M14: 22,386,125 km (0.1 R)
• M15: 23,772,897 km (0.112 R)
• M16: 29,894,292 km (0.096 R)
• M17: 33,726,092 km (0.072 R)
• M18: 45,295,094 km (0.048 R)
• M19: 46,647,907 km (0.119 R)
• M20: 58,652,987 km (0.114 R)
• M21: 60,665,377 km (0.094 R)
• M22: 62,308,112 km (0.112 R)
• M23: 63,769,683 km (0.093 R)
• M24: 70,068,501 km (0.056 R)
• M25: 71,194,823 km (0.036 R)
• M26: 71,648,703 km (0.079 R)
• M27: 81,383,934 km (0.067 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: 494 - 17,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit