🌌 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: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.46 AU - 0.66 AU

Year: 150 Days

Day: 16.9 Hours

Environment

Temp: 162 °C

Axial Tilt: 99.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 44,164,506 km

• M1: 29,920 km (0.055 R)
• M2: 355,295 km (0.05 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.6 AU - 0.7 AU

Year: 188 Days

Day: 38 Hours

Environment

Temp: 167 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.69 AU - 1.05 AU

Year: 291 Days

Day: 38.6 Hours

Environment

Temp: 141 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.24 AU - 1.92 AU

Year: 711 Days

Day: 30.9 Hours

Environment

Temp: -37 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.96 AU - 4.26 AU

Year: 2457 Days

Day: 15.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 9.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,164,506 km

• M1: 40,990 km (0.036 R)
• M2: 646,113 km (0.098 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.57 AU - 4.09 AU

Year: 2685 Days

Day: 22.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 11.15 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 18.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.4

Radius: 4.3

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 16.98 AU - 19.94 AU

Year: 28407 Days

Day: 15.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,164,506 km

• M1: 53,406 km (0.114 R)
• M2: 422,464 km (0.097 R)
• M3: 810,970 km (0.105 R)
• M4: 3,115,974 km (0.098 R)
• M5: 3,439,704 km (0.086 R)
• M6: 3,659,463 km (0.106 R)
• M7: 4,840,837 km (0.068 R)
• M8: 6,327,691 km (0.045 R)
• M9: 7,800,033 km (0.073 R)
• M10: 9,486,450 km (0.118 R)
• M11: 12,335,990 km (0.065 R)
• M12: 12,677,672 km (0.079 R)
• M13: 14,046,193 km (0.111 R)
• M14: 15,975,108 km (0.1 R)
• M15: 18,366,579 km (0.078 R)
• M16: 19,647,436 km (0.096 R)
• M17: 25,003,040 km (0.088 R)
• M18: 31,889,928 km (0.06 R)
• M19: 35,192,301 km (0.068 R)

Kuiper Belt

Range: 30.6 - 55.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 17,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit