🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.65 AU - 0.67 AU

Year: 346 Days

Day: 43.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.9

Radius: 11.9

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.65 AU - 0.71 AU

Year: 362 Days

Day: 8.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,732,121 km

• M1: 148,251 km (0.051 R)
• M2: 679,174 km (0.119 R)
• M3: 1,182,571 km (0.106 R)
• M4: 1,715,888 km (0.079 R)
• M5: 2,093,473 km (0.07 R)
• M6: 2,822,313 km (0.09 R)
• M7: 3,460,049 km (0.066 R)
• M8: 3,915,425 km (0.099 R)
• M9: 4,623,621 km (0.045 R)
• M10: 5,193,739 km (0.118 R)
• M11: 5,659,886 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.6

Radius: 8.2

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.04 AU - 1.26 AU

Year: 796 Days

Day: 6.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,732,121 km

• M1: 102,026 km (0.042 R)
• M2: 380,278 km (0.073 R)
• M3: 931,247 km (0.071 R)
• M4: 1,305,541 km (0.05 R)
• M5: 2,184,877 km (0.098 R)
• M6: 2,581,760 km (0.103 R)
• M7: 3,016,192 km (0.112 R)
• M8: 3,563,870 km (0.066 R)
• M9: 3,821,478 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.8

Radius: 11.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.24 AU - 1.58 AU

Year: 1081 Days

Day: 5.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,732,121 km

• M1: 143,464 km (0.106 R)
• M2: 628,760 km (0.056 R)
• M3: 1,140,385 km (0.11 R)
• M4: 1,639,742 km (0.112 R)
• M5: 2,005,359 km (0.089 R)
• M6: 2,510,851 km (0.093 R)
• M7: 3,100,416 km (0.032 R)
• M8: 3,625,804 km (0.107 R)
• M9: 4,705,302 km (0.046 R)
• M10: 5,132,703 km (0.116 R)
• M11: 5,660,933 km (0.118 R)
• M12: 6,185,274 km (0.085 R)
• M13: 6,826,899 km (0.118 R)
• M14: 7,398,961 km (0.118 R)
• M15: 7,836,984 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.3

Radius: 11.6

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.94 AU - 2.88 AU

Year: 2416 Days

Day: 8 Hours

Environment

Temp: -201 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,732,121 km

• M1: 144,212 km (0.071 R)
• M2: 692,937 km (0.074 R)
• M3: 1,399,787 km (0.115 R)
• M4: 2,048,444 km (0.059 R)
• M5: 2,727,319 km (0.09 R)
• M6: 3,691,477 km (0.102 R)
• M7: 4,720,710 km (0.06 R)
• M8: 5,429,356 km (0.107 R)
• M9: 7,340,020 km (0.055 R)
• M10: 8,479,058 km (0.048 R)
• M11: 8,894,641 km (0.077 R)
• M12: 9,663,274 km (0.11 R)
• M13: 10,475,740 km (0.086 R)
• M14: 11,448,426 km (0.111 R)
• M15: 12,076,288 km (0.049 R)
• M16: 13,834,063 km (0.095 R)
• M17: 16,239,447 km (0.097 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 16,605 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit