🌌 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: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.41 AU - 0.61 AU

Year: 239 Days

Day: 29.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.45 AU - 0.75 AU

Year: 305 Days

Day: 21.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.4

Radius: 13

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.64 AU - 0.72 AU

Year: 368 Days

Day: 9.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,357,850 km

• M1: 161,715 km (0.101 R)
• M2: 602,580 km (0.115 R)
• M3: 1,549,236 km (0.064 R)
• M4: 2,112,472 km (0.078 R)
• M5: 2,827,400 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.4

Radius: 8.9

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.03 AU - 3.07 AU

Year: 3494 Days

Day: 6.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,357,850 km

• M1: 110,702 km (0.074 R)
• M2: 721,511 km (0.091 R)
• M3: 1,511,088 km (0.043 R)
• M4: 1,915,451 km (0.115 R)
• M5: 2,440,240 km (0.114 R)
• M6: 3,562,673 km (0.073 R)
• M7: 3,894,930 km (0.092 R)
• M8: 4,357,786 km (0.089 R)
• M9: 5,878,448 km (0.112 R)
• M10: 8,028,768 km (0.107 R)
• M11: 10,588,687 km (0.114 R)
• M12: 12,219,902 km (0.043 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348.6

Radius: 7.4

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.71 AU - 9.47 AU

Year: 15095 Days

Day: 24 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,357,850 km

• M1: 92,003 km (0.105 R)
• M2: 431,440 km (0.089 R)
• M3: 965,355 km (0.101 R)
• M4: 1,207,255 km (0.115 R)
• M5: 1,865,785 km (0.082 R)
• M6: 2,102,748 km (0.093 R)
• M7: 2,556,478 km (0.103 R)
• M8: 2,850,288 km (0.069 R)
• M9: 3,119,864 km (0.111 R)
• M10: 5,178,629 km (0.066 R)
• M11: 6,005,756 km (0.098 R)
• M12: 6,450,959 km (0.109 R)
• M13: 13,455,132 km (0.079 R)
• M14: 13,832,717 km (0.111 R)
• M15: 14,608,980 km (0.077 R)
• M16: 16,461,600 km (0.116 R)
• M17: 17,855,703 km (0.061 R)
• M18: 19,646,240 km (0.11 R)
• M19: 21,382,921 km (0.12 R)
• M20: 22,244,755 km (0.113 R)
• M21: 22,595,861 km (0.11 R)
• M22: 24,500,541 km (0.069 R)
• M23: 26,118,741 km (0.09 R)
• M24: 26,904,429 km (0.101 R)
• M25: 27,503,868 km (0.091 R)
• M26: 29,884,718 km (0.044 R)
• M27: 31,509,500 km (0.09 R)
• M28: 41,708,934 km (0.088 R)
• M29: 48,129,674 km (0.034 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: 398 - 12,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit