🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.41 AU - 0.63 AU

Year: 167 Days

Day: 30.6 Hours

Environment

Temp: 17 °C

Axial Tilt: 33.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.82 AU - 2.8 AU

Year: 1567 Days

Day: 20.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,980,100 km

• M1: 1,165,367 km (0.079 R)

Asteroid Belt

Center: 3.27 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.4

Radius: 11.8

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.11 AU - 4.33 AU

Year: 3868 Days

Day: 14.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,980,100 km

• M1: 146,756 km (0.09 R)
• M2: 529,576 km (0.082 R)
• M3: 1,097,300 km (0.081 R)
• M4: 1,747,303 km (0.09 R)
• M5: 2,202,230 km (0.078 R)
• M6: 2,735,995 km (0.099 R)
• M7: 4,193,528 km (0.102 R)
• M8: 4,874,198 km (0.09 R)
• M9: 7,817,386 km (0.119 R)
• M10: 10,364,290 km (0.081 R)
• M11: 11,566,010 km (0.112 R)
• M12: 14,393,858 km (0.119 R)
• M13: 21,506,639 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.6

Radius: 10.7

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.02 AU - 6.16 AU

Year: 5124 Days

Day: 10.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,980,100 km

• M1: 133,740 km (0.104 R)
• M2: 915,240 km (0.113 R)
• M3: 2,166,327 km (0.094 R)
• M4: 2,566,651 km (0.07 R)
• M5: 2,925,087 km (0.057 R)
• M6: 4,108,406 km (0.058 R)
• M7: 4,655,187 km (0.083 R)
• M8: 6,682,387 km (0.083 R)
• M9: 7,563,519 km (0.102 R)
• M10: 8,601,429 km (0.095 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.4

Radius: 7.8

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 15.53 AU - 15.59 AU

Year: 27388 Days

Day: 23.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,980,100 km

• M1: 97,089 km (0.104 R)
• M2: 428,747 km (0.1 R)
• M3: 863,928 km (0.059 R)
• M4: 1,399,937 km (0.053 R)
• M5: 1,909,018 km (0.113 R)
• M6: 3,368,495 km (0.106 R)
• M7: 4,588,167 km (0.105 R)
• M8: 5,384,775 km (0.109 R)
• M9: 5,816,365 km (0.104 R)
• M10: 7,336,130 km (0.028 R)
• M11: 8,470,082 km (0.101 R)
• M12: 12,200,305 km (0.09 R)
• M13: 17,359,038 km (0.094 R)
• M14: 20,456,162 km (0.081 R)
• M15: 24,190,724 km (0.101 R)
• M16: 31,003,710 km (0.107 R)
• M17: 34,784,347 km (0.084 R)
• M18: 35,525,904 km (0.103 R)
• M19: 36,277,783 km (0.11 R)
• M20: 37,943,555 km (0.073 R)
• M21: 38,335,053 km (0.075 R)
• M22: 39,659,592 km (0.12 R)
• M23: 41,014,351 km (0.08 R)
• M24: 46,742,603 km (0.115 R)
• M25: 48,101,101 km (0.108 R)
• M26: 52,173,454 km (0.103 R)
• M27: 55,290,625 km (0.082 R)
• M28: 56,300,261 km (0.042 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 14,909 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit