🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.53 AU - 0.83 AU

Year: 205 Days

Day: 27 Hours

Environment

Temp: 152 °C

Axial Tilt: 34.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.97 AU - 1.43 AU

Year: 480 Days

Day: 25.3 Hours

Environment

Temp: 11 °C

Axial Tilt: 13.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 84,103,173 km

• M1: 59,390 km (0.073 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.15 AU - 1.47 AU

Year: 548 Days

Day: 35.7 Hours

Environment

Temp: -5 °C

Axial Tilt: 28.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.58 AU - 1.92 AU

Year: 846 Days

Day: 37.2 Hours

Environment

Temp: -47 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,103,173 km

• M1: 196,871 km (0.095 R)
• M2: 284,086 km (0.101 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.46 AU - 2.84 AU

Year: 1576 Days

Day: 19.9 Hours

Environment

Temp: -84 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,103,173 km

• M1: 207,492 km (0.109 R)
• M2: 483,351 km (0.034 R)

Asteroid Belt

Center: 4.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.6

Radius: 10.4

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.73 AU - 7.45 AU

Year: 6179 Days

Day: 7.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,103,173 km

• M1: 454,478 km (0.106 R)
• M2: 749,336 km (0.066 R)
• M3: 1,041,052 km (0.101 R)
• M4: 1,589,328 km (0.091 R)
• M5: 1,997,132 km (0.088 R)
• M6: 2,345,994 km (0.098 R)
• M7: 3,690,579 km (0.033 R)
• M8: 4,576,648 km (0.105 R)
• M9: 4,808,524 km (0.039 R)
• M10: 6,324,400 km (0.063 R)
• M11: 8,808,622 km (0.064 R)
• M12: 9,405,069 km (0.073 R)
• M13: 9,626,922 km (0.091 R)
• M14: 10,250,596 km (0.096 R)
• M15: 10,923,637 km (0.11 R)
• M16: 11,741,488 km (0.104 R)
• M17: 12,589,110 km (0.058 R)
• M18: 14,102,142 km (0.1 R)
• M19: 14,305,745 km (0.093 R)
• M20: 15,880,712 km (0.076 R)
• M21: 17,163,065 km (0.104 R)
• M22: 19,042,612 km (0.105 R)
• M23: 20,241,938 km (0.111 R)
• M24: 20,608,902 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 358.4

Radius: 4

Gravity: 22.4 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 16.97 AU - 22.59 AU

Year: 32131 Days

Day: 23.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,103,173 km

• M1: 50,115 km (0.086 R)
• M2: 1,792,631 km (0.087 R)
• M3: 2,957,700 km (0.115 R)
• M4: 3,651,385 km (0.062 R)
• M5: 5,387,468 km (0.118 R)
• M6: 6,781,571 km (0.112 R)
• M7: 7,021,526 km (0.063 R)
• M8: 7,414,220 km (0.1 R)
• M9: 8,337,089 km (0.118 R)
• M10: 9,709,201 km (0.101 R)
• M11: 10,702,381 km (0.069 R)
• M12: 10,822,359 km (0.12 R)
• M13: 11,494,502 km (0.063 R)
• M14: 13,364,176 km (0.1 R)
• M15: 16,101,368 km (0.103 R)
• M16: 20,895,382 km (0.063 R)
• M17: 25,568,520 km (0.088 R)
• M18: 33,622,720 km (0.104 R)
• M19: 43,986,860 km (0.088 R)
• M20: 46,077,341 km (0.07 R)
• M21: 63,086,170 km (0.072 R)
• M22: 70,114,128 km (0.04 R)
• M23: 83,097,578 km (0.109 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 12,471 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit