🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.19 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.24 AU - 2.52 AU

Year: 1406 Days

Day: 13.6 Hours

Environment

Temp: -97 °C

Axial Tilt: 107.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.83 AU - 3.05 AU

Year: 1459 Days

Day: 32.9 Hours

Environment

Temp: -109 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.37 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.8

Radius: 12.5

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.1 AU - 9.48 AU

Year: 9139 Days

Day: 5.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,623,349 km

• M1: 155,582 km (0.11 R)
• M2: 1,237,773 km (0.049 R)
• M3: 2,088,386 km (0.117 R)
• M4: 2,531,794 km (0.063 R)
• M5: 3,002,429 km (0.115 R)
• M6: 3,797,841 km (0.03 R)
• M7: 4,607,914 km (0.09 R)
• M8: 5,315,063 km (0.101 R)
• M9: 5,891,912 km (0.095 R)
• M10: 7,981,495 km (0.108 R)
• M11: 8,889,255 km (0.052 R)
• M12: 12,638,627 km (0.092 R)
• M13: 14,075,813 km (0.099 R)
• M14: 16,120,367 km (0.056 R)
• M15: 16,632,291 km (0.111 R)
• M16: 17,450,143 km (0.032 R)
• M17: 18,602,645 km (0.069 R)
• M18: 23,652,022 km (0.117 R)
• M19: 24,165,442 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.3

Radius: 13.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.9 AU - 9.12 AU

Year: 9505 Days

Day: 10.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 118.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,623,349 km

• M1: 171,738 km (0.095 R)
• M2: 717,471 km (0.097 R)
• M3: 2,282,714 km (0.096 R)
• M4: 3,358,921 km (0.074 R)
• M5: 4,182,756 km (0.12 R)
• M6: 4,968,893 km (0.101 R)
• M7: 6,631,075 km (0.107 R)
• M8: 7,405,394 km (0.113 R)
• M9: 10,645,534 km (0.099 R)
• M10: 11,168,379 km (0.116 R)
• M11: 12,317,141 km (0.099 R)
• M12: 16,740,301 km (0.115 R)
• M13: 20,555,645 km (0.087 R)
• M14: 21,744,200 km (0.057 R)
• M15: 23,772,598 km (0.112 R)
• M16: 24,585,512 km (0.068 R)
• M17: 27,047,744 km (0.071 R)
• M18: 28,747,624 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.6

Radius: 3.3

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 11.2 AU - 14.02 AU

Year: 17145 Days

Day: 15.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,623,349 km

• M1: 60,438 km (0.102 R)
• M2: 176,525 km (0.101 R)
• M3: 870,660 km (0.087 R)
• M4: 2,234,095 km (0.048 R)
• M5: 2,358,710 km (0.115 R)
• M6: 2,554,533 km (0.037 R)
• M7: 12,438,016 km (0.062 R)
• M8: 17,220,360 km (0.105 R)
• M9: 19,815,285 km (0.108 R)
• M10: 21,032,563 km (0.095 R)
• M11: 21,589,217 km (0.051 R)
• M12: 25,921,870 km (0.104 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: 255 - 14,126 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit