🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.72 AU - 3.2 AU

Year: 1908 Days

Day: 16.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,728,298 km

• M1: 17,353 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.82

Radius: 0.92

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.09 AU - 3.23 AU

Year: 2105 Days

Day: 39.2 Hours

Environment

Temp: -108 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.29 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.1

Radius: 12.7

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.36 AU - 6.46 AU

Year: 4715 Days

Day: 12.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,728,298 km

• M1: 159,621 km (0.043 R)
• M2: 674,836 km (0.118 R)
• M3: 1,964,370 km (0.074 R)
• M4: 2,397,306 km (0.093 R)
• M5: 3,098,471 km (0.104 R)
• M6: 3,632,386 km (0.112 R)
• M7: 5,329,723 km (0.101 R)
• M8: 6,072,626 km (0.101 R)
• M9: 7,830,850 km (0.066 R)
• M10: 9,116,793 km (0.108 R)
• M11: 9,562,894 km (0.073 R)
• M12: 11,240,036 km (0.073 R)
• M13: 12,193,124 km (0.1 R)
• M14: 12,965,947 km (0.115 R)
• M15: 14,609,429 km (0.08 R)
• M16: 15,481,435 km (0.088 R)
• M17: 16,496,756 km (0.071 R)
• M18: 17,842,089 km (0.086 R)
• M19: 19,933,467 km (0.108 R)
• M20: 22,317,010 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.3

Radius: 8.4

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 8.66 AU - 9.94 AU

Year: 10628 Days

Day: 8.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,728,298 km

• M1: 104,419 km (0.095 R)
• M2: 744,100 km (0.109 R)
• M3: 2,062,207 km (0.078 R)
• M4: 2,327,294 km (0.113 R)
• M5: 3,987,980 km (0.114 R)
• M6: 6,103,294 km (0.067 R)
• M7: 6,579,464 km (0.099 R)
• M8: 9,630,363 km (0.116 R)
• M9: 12,387,751 km (0.047 R)
• M10: 21,747,192 km (0.098 R)
• M11: 25,098,484 km (0.111 R)
• M12: 27,285,754 km (0.118 R)
• M13: 40,405,338 km (0.06 R)
• M14: 45,569,606 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.7

Radius: 14.3

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.99 AU - 10.73 AU

Year: 11602 Days

Day: 12.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,728,298 km

• M1: 180,265 km (0.106 R)
• M2: 1,146,668 km (0.102 R)
• M3: 1,600,697 km (0.102 R)
• M4: 2,440,091 km (0.057 R)
• M5: 2,932,567 km (0.072 R)
• M6: 4,023,584 km (0.092 R)
• M7: 5,223,509 km (0.104 R)
• M8: 5,859,749 km (0.085 R)
• M9: 7,179,351 km (0.109 R)
• M10: 10,078,109 km (0.077 R)
• M11: 11,018,930 km (0.072 R)
• M12: 13,239,561 km (0.112 R)
• M13: 17,272,421 km (0.053 R)
• M14: 17,870,214 km (0.118 R)
• M15: 21,144,313 km (0.08 R)
• M16: 23,002,318 km (0.058 R)
• M17: 29,698,319 km (0.078 R)
• M18: 31,826,947 km (0.032 R)
• M19: 33,745,540 km (0.068 R)
• M20: 34,576,107 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 299.3

Radius: 6.2

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 9.7 AU - 15.7 AU

Year: 16960 Days

Day: 16.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,728,298 km

• M1: 87,216 km (0.12 R)
• M2: 460,163 km (0.101 R)
• M3: 974,481 km (0.042 R)
• M4: 1,349,971 km (0.035 R)
• M5: 2,568,147 km (0.092 R)
• M6: 3,585,113 km (0.11 R)
• M7: 4,910,401 km (0.114 R)
• M8: 5,203,612 km (0.088 R)
• M9: 5,789,288 km (0.081 R)
• M10: 6,266,056 km (0.094 R)
• M11: 7,050,248 km (0.073 R)
• M12: 9,147,910 km (0.112 R)
• M13: 14,591,627 km (0.1 R)
• M14: 15,266,612 km (0.093 R)
• M15: 17,416,483 km (0.114 R)
• M16: 17,793,470 km (0.108 R)
• M17: 19,195,651 km (0.081 R)
• M18: 19,678,852 km (0.1 R)
• M19: 20,005,574 km (0.096 R)
• M20: 23,110,627 km (0.033 R)
• M21: 24,872,142 km (0.11 R)
• M22: 25,834,355 km (0.047 R)
• M23: 33,044,823 km (0.042 R)
• M24: 34,324,633 km (0.094 R)
• M25: 35,758,080 km (0.092 R)
• M26: 39,386,127 km (0.114 R)
• M27: 41,089,299 km (0.063 R)
• M28: 46,926,758 km (0.056 R)
• M29: 47,217,726 km (0.118 R)
• M30: 47,509,890 km (0.111 R)
• M31: 48,542,115 km (0.034 R)
• M32: 49,138,562 km (0.118 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 15,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit