🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.69 AU - 0.91 AU

Year: 255 Days

Day: 14.6 Hours

Environment

Temp: 193 °C

Axial Tilt: 26.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.58 AU - 3.32 AU

Year: 1806 Days

Day: 42.7 Hours

Environment

Temp: -98 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.77 AU - 3.19 AU

Year: 1834 Days

Day: 42.5 Hours

Environment

Temp: -92 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.56 AU - 5.46 AU

Year: 3414 Days

Day: 15.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 23.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 17,452,943 km

• M1: 43,383 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.79 AU - 5.87 AU

Year: 3784 Days

Day: 25.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437

Radius: 13.2

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.91 AU - 7.21 AU

Year: 5317 Days

Day: 12.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,452,943 km

• M1: 164,258 km (0.059 R)
• M2: 579,692 km (0.049 R)
• M3: 1,389,016 km (0.046 R)
• M4: 1,887,028 km (0.047 R)
• M5: 2,870,783 km (0.108 R)
• M6: 3,409,335 km (0.035 R)
• M7: 4,194,575 km (0.117 R)
• M8: 4,866,269 km (0.052 R)
• M9: 5,308,480 km (0.108 R)
• M10: 7,220,790 km (0.101 R)
• M11: 11,116,618 km (0.112 R)
• M12: 12,840,584 km (0.073 R)
• M13: 15,389,881 km (0.116 R)
• M14: 16,405,800 km (0.109 R)
• M15: 20,382,710 km (0.097 R)
• M16: 22,380,290 km (0.102 R)
• M17: 24,732,418 km (0.082 R)
• M18: 25,577,795 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.5

Radius: 14.2

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.77 AU - 11.11 AU

Year: 11171 Days

Day: 14.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,452,943 km

• M1: 270,772 km (0.053 R)
• M2: 892,202 km (0.075 R)
• M3: 2,310,390 km (0.083 R)
• M4: 8,002,588 km (0.116 R)
• M5: 8,501,946 km (0.085 R)
• M6: 17,143,766 km (0.065 R)

Kuiper Belt

Range: 30.8 - 45.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 13,494 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit