🌌 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: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.47 AU - 0.63 AU

Year: 151 Days

Day: 21.3 Hours

Environment

Temp: 195 °C

Axial Tilt: 8.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 42,964,981 km

• M1: 108,159 km (0.048 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.48 AU - 0.66 AU

Year: 160 Days

Day: 16.9 Hours

Environment

Temp: 190 °C

Axial Tilt: 47.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.71 AU - 0.79 AU

Year: 241 Days

Day: 33.6 Hours

Environment

Temp: 152 °C

Axial Tilt: 10 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.27 AU - 1.41 AU

Year: 575 Days

Day: 25.1 Hours

Environment

Temp: -22 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.77 AU - 3.41 AU

Year: 2014 Days

Day: 12.9 Hours

Environment

Temp: -111 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.14 AU - 4.58 AU

Year: 2812 Days

Day: 36.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.2

Radius: 8.9

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.2 AU - 8.42 AU

Year: 6591 Days

Day: 9.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,964,981 km

• M1: 110,852 km (0.097 R)
• M2: 568,771 km (0.103 R)
• M3: 939,325 km (0.116 R)
• M4: 1,422,676 km (0.078 R)
• M5: 3,548,910 km (0.027 R)
• M6: 4,434,679 km (0.113 R)
• M7: 8,052,704 km (0.112 R)
• M8: 8,566,124 km (0.088 R)
• M9: 9,059,348 km (0.108 R)
• M10: 9,571,421 km (0.092 R)
• M11: 10,147,822 km (0.105 R)
• M12: 11,127,538 km (0.098 R)
• M13: 12,169,039 km (0.072 R)
• M14: 14,103,489 km (0.096 R)
• M15: 15,203,183 km (0.056 R)
• M16: 20,177,162 km (0.111 R)
• M17: 22,254,030 km (0.096 R)
• M18: 23,822,115 km (0.085 R)
• M19: 24,225,281 km (0.035 R)
• M20: 26,053,965 km (0.083 R)
• M21: 31,120,695 km (0.098 R)
• M22: 32,187,627 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.9

Radius: 6.8

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 10.56 AU - 14.52 AU

Year: 16468 Days

Day: 22.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,964,981 km

• M1: 90,208 km (0.091 R)
• M2: 553,662 km (0.099 R)
• M3: 2,274,187 km (0.109 R)
• M4: 2,687,376 km (0.102 R)
• M5: 3,888,797 km (0.062 R)
• M6: 4,767,834 km (0.102 R)
• M7: 5,975,837 km (0.083 R)
• M8: 7,102,757 km (0.103 R)
• M9: 9,208,497 km (0.052 R)
• M10: 9,439,626 km (0.028 R)
• M11: 12,134,482 km (0.115 R)
• M12: 12,412,584 km (0.085 R)
• M13: 13,567,480 km (0.102 R)
• M14: 13,867,124 km (0.089 R)
• M15: 14,479,578 km (0.103 R)
• M16: 19,131,772 km (0.087 R)
• M17: 20,433,573 km (0.069 R)
• M18: 23,900,803 km (0.111 R)
• M19: 26,418,535 km (0.092 R)
• M20: 37,315,543 km (0.105 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 18,133 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit