🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.47 AU - 0.63 AU

Year: 148 Days

Day: 39.3 Hours

Environment

Temp: 223 °C

Axial Tilt: 3.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.64 AU - 0.98 AU

Year: 265 Days

Day: 44 Hours

Environment

Temp: 139 °C

Axial Tilt: 22 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.01 AU - 1.33 AU

Year: 460 Days

Day: 13.8 Hours

Environment

Temp: 1 °C

Axial Tilt: 43.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 89,586,800 km

• M1: 516,561 km (0.04 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.49 AU - 1.51 AU

Year: 668 Days

Day: 14.9 Hours

Environment

Temp: -40 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.91 AU - 2.53 AU

Year: 1202 Days

Day: 31.8 Hours

Environment

Temp: -80 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,586,800 km

• M1: 424,559 km (0.116 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.74 AU - 2.9 AU

Year: 1284 Days

Day: 40.3 Hours

Environment

Temp: -83 °C

Axial Tilt: 47.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.22 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 18.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.1

Radius: 3.1

Gravity: 59.22 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 17.61 AU - 18.63 AU

Year: 28033 Days

Day: 22.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,586,800 km

• M1: 38,596 km (0.089 R)
• M2: 148,251 km (0.091 R)
• M3: 486,343 km (0.111 R)
• M4: 928,554 km (0.088 R)
• M5: 1,742,965 km (0.086 R)
• M6: 2,245,165 km (0.116 R)
• M7: 9,696,336 km (0.118 R)
• M8: 11,098,367 km (0.101 R)
• M9: 11,366,895 km (0.104 R)
• M10: 20,364,309 km (0.097 R)
• M11: 32,496,846 km (0.111 R)
• M12: 33,184,548 km (0.111 R)
• M13: 33,601,776 km (0.089 R)
• M14: 43,854,915 km (0.104 R)
• M15: 47,804,598 km (0.096 R)
• M16: 50,687,947 km (0.061 R)
• M17: 54,259,596 km (0.075 R)
• M18: 61,063,158 km (0.105 R)
• M19: 65,101,852 km (0.072 R)
• M20: 70,453,117 km (0.093 R)

Kuiper Belt

Range: 30.2 - 52.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 13,360 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit