🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.46 AU - 0.74 AU

Year: 305 Days

Day: 44.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,558,610 km

• M1: 55,052 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.4

Radius: 11.9

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.61 AU - 0.77 AU

Year: 376 Days

Day: 12.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,558,610 km

• M1: 147,952 km (0.104 R)
• M2: 520,900 km (0.099 R)
• M3: 912,846 km (0.084 R)
• M4: 1,360,742 km (0.091 R)
• M5: 1,919,640 km (0.089 R)
• M6: 2,692,462 km (0.097 R)
• M7: 3,362,362 km (0.112 R)
• M8: 3,908,394 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.3

Radius: 13.2

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.6 AU - 0.9 AU

Year: 426 Days

Day: 8.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,558,610 km

• M1: 164,109 km (0.111 R)
• M2: 610,210 km (0.105 R)
• M3: 1,163,423 km (0.11 R)
• M4: 1,870,273 km (0.118 R)
• M5: 2,828,896 km (0.095 R)
• M6: 3,347,552 km (0.054 R)
• M7: 3,771,512 km (0.082 R)
• M8: 5,008,088 km (0.066 R)
• M9: 5,685,766 km (0.087 R)
• M10: 6,219,831 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.7

Radius: 13.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.79 AU - 3.39 AU

Year: 3563 Days

Day: 12.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,558,610 km

• M1: 172,935 km (0.072 R)
• M2: 728,990 km (0.11 R)
• M3: 1,228,348 km (0.066 R)
• M4: 2,373,221 km (0.104 R)
• M5: 4,016,104 km (0.047 R)
• M6: 5,313,118 km (0.068 R)
• M7: 5,749,794 km (0.084 R)
• M8: 6,435,850 km (0.105 R)
• M9: 7,362,010 km (0.115 R)
• M10: 8,375,237 km (0.049 R)
• M11: 12,063,423 km (0.071 R)
• M12: 12,685,899 km (0.093 R)
• M13: 13,899,138 km (0.088 R)
• M14: 15,188,223 km (0.109 R)
• M15: 19,114,120 km (0.108 R)
• M16: 19,838,622 km (0.078 R)
• M17: 21,730,437 km (0.064 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.8

Radius: 5.2

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 9.02 AU - 12.9 AU

Year: 23803 Days

Day: 24.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,558,610 km

• M1: 64,925 km (0.105 R)
• M2: 322,533 km (0.041 R)
• M3: 949,647 km (0.063 R)
• M4: 1,186,910 km (0.112 R)
• M5: 1,646,025 km (0.091 R)
• M6: 3,107,746 km (0.092 R)
• M7: 3,865,459 km (0.067 R)
• M8: 4,709,341 km (0.107 R)
• M9: 6,908,430 km (0.096 R)
• M10: 8,629,852 km (0.072 R)
• M11: 10,721,979 km (0.117 R)
• M12: 19,600,911 km (0.103 R)
• M13: 24,228,422 km (0.03 R)
• M14: 27,523,465 km (0.108 R)
• M15: 39,426,070 km (0.09 R)
• M16: 44,768,808 km (0.109 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: 210 - 15,000 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit