🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.58 AU - 0.94 AU

Year: 237 Days

Day: 12.8 Hours

Environment

Temp: 144 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.49 AU - 1.51 AU

Year: 658 Days

Day: 21.9 Hours

Environment

Temp: -19 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.79 AU - 2.03 AU

Year: 945 Days

Day: 20.5 Hours

Environment

Temp: -46 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,938,002 km

• M1: 1,213,089 km (0.059 R)

Asteroid Belt

Center: 4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.9

Radius: 9.4

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.57 AU - 7.61 AU

Year: 5383 Days

Day: 6.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,938,002 km

• M1: 120,426 km (0.104 R)
• M2: 414,087 km (0.114 R)
• M3: 874,250 km (0.099 R)
• M4: 1,338,153 km (0.044 R)
• M5: 2,150,469 km (0.111 R)
• M6: 3,420,705 km (0.097 R)
• M7: 4,365,266 km (0.114 R)
• M8: 4,693,633 km (0.055 R)
• M9: 5,727,654 km (0.098 R)
• M10: 6,761,973 km (0.111 R)
• M11: 9,161,374 km (0.092 R)
• M12: 9,812,424 km (0.086 R)
• M13: 10,571,483 km (0.082 R)
• M14: 12,465,542 km (0.064 R)
• M15: 15,766,120 km (0.091 R)
• M16: 16,647,849 km (0.108 R)
• M17: 18,566,143 km (0.045 R)
• M18: 19,785,366 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 10

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 9.67 AU - 12.45 AU

Year: 13174 Days

Day: 6.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,938,002 km

• M1: 124,914 km (0.084 R)
• M2: 483,949 km (0.065 R)
• M3: 835,654 km (0.082 R)
• M4: 1,227,899 km (0.044 R)
• M5: 2,436,351 km (0.085 R)
• M6: 2,912,671 km (0.117 R)
• M7: 3,232,212 km (0.115 R)
• M8: 3,862,168 km (0.114 R)
• M9: 6,362,397 km (0.104 R)
• M10: 7,732,265 km (0.118 R)
• M11: 9,047,978 km (0.106 R)
• M12: 9,784,449 km (0.043 R)
• M13: 14,014,777 km (0.101 R)
• M14: 14,469,106 km (0.099 R)
• M15: 17,553,515 km (0.109 R)
• M16: 18,005,450 km (0.116 R)
• M17: 24,704,742 km (0.077 R)
• M18: 25,559,993 km (0.059 R)
• M19: 30,457,378 km (0.091 R)
• M20: 32,444,637 km (0.118 R)
• M21: 35,585,444 km (0.1 R)
• M22: 39,306,541 km (0.091 R)
• M23: 40,996,698 km (0.088 R)
• M24: 45,081,019 km (0.066 R)
• M25: 46,357,388 km (0.114 R)
• M26: 48,685,580 km (0.118 R)

Kuiper Belt

Range: 30.6 - 54.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 476 - 11,404 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit