🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.41 AU - 0.61 AU

Year: 232 Days

Day: 46.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.45 AU - 0.73 AU

Year: 288 Days

Day: 24.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.4

Radius: 13.9

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.78 AU - 1.22 AU

Year: 636 Days

Day: 12.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,367,849 km

• M1: 173,234 km (0.056 R)
• M2: 876,494 km (0.111 R)
• M3: 1,371,812 km (0.118 R)
• M4: 1,971,102 km (0.088 R)
• M5: 2,731,956 km (0.033 R)
• M6: 3,524,376 km (0.07 R)
• M7: 4,635,290 km (0.065 R)
• M8: 5,324,039 km (0.093 R)
• M9: 5,784,052 km (0.073 R)
• M10: 6,804,908 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.3

Radius: 9.7

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.09 AU - 4.11 AU

Year: 4343 Days

Day: 12.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,367,849 km

• M1: 124,914 km (0.098 R)
• M2: 430,842 km (0.104 R)
• M3: 782,696 km (0.057 R)
• M4: 1,393,055 km (0.083 R)
• M5: 3,241,038 km (0.072 R)
• M6: 4,904,566 km (0.107 R)
• M7: 5,259,412 km (0.099 R)
• M8: 8,602,925 km (0.092 R)
• M9: 9,387,117 km (0.035 R)
• M10: 9,737,475 km (0.04 R)
• M11: 12,627,257 km (0.1 R)
• M12: 12,958,916 km (0.112 R)
• M13: 18,780,666 km (0.07 R)
• M14: 19,337,918 km (0.109 R)
• M15: 21,543,290 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 458.3

Radius: 3

Gravity: 50.92 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 8.15 AU - 9.03 AU

Year: 16007 Days

Day: 18.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,367,849 km

• M1: 37,399 km (0.046 R)
• M2: 259,104 km (0.109 R)
• M3: 502,798 km (0.032 R)
• M4: 1,178,382 km (0.096 R)
• M5: 1,829,283 km (0.089 R)
• M6: 2,330,585 km (0.118 R)
• M7: 2,689,919 km (0.091 R)
• M8: 3,334,537 km (0.116 R)
• M9: 5,617,699 km (0.082 R)
• M10: 8,098,481 km (0.065 R)
• M11: 8,428,344 km (0.077 R)
• M12: 12,986,292 km (0.037 R)
• M13: 15,709,123 km (0.114 R)
• M14: 23,647,833 km (0.089 R)
• M15: 25,603,526 km (0.114 R)
• M16: 27,139,148 km (0.098 R)
• M17: 30,279,955 km (0.085 R)
• M18: 30,731,292 km (0.085 R)
• M19: 46,002,991 km (0.102 R)
• M20: 46,151,542 km (0.032 R)
• M21: 46,599,288 km (0.081 R)
• M22: 49,971,224 km (0.112 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 17,472 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit