🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.62 AU - 0.64 AU

Year: 190 Days

Day: 16.2 Hours

Environment

Temp: 165 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.78 AU - 0.88 AU

Year: 288 Days

Day: 31.9 Hours

Environment

Temp: 40 °C

Axial Tilt: 31.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.87 AU - 1.03 AU

Year: 353 Days

Day: 21.8 Hours

Environment

Temp: 26 °C

Axial Tilt: 33.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.41 AU - 2.05 AU

Year: 866 Days

Day: 41.4 Hours

Environment

Temp: -67 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.67 AU - 1.97 AU

Year: 935 Days

Day: 18.5 Hours

Environment

Temp: -66 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.7 AU - 2.28 AU

Year: 1069 Days

Day: 42.1 Hours

Environment

Temp: -74 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.12 AU - 4.01 AU

Year: 2558 Days

Day: 39.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,406,205 km

• M1: 203,304 km (0.1 R)

Asteroid Belt

Center: 8.16 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 12.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 577.7

Radius: 4.1

Gravity: 34.37 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 9.84 AU - 15.68 AU

Year: 17357 Days

Day: 19.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 65,406,205 km

• M1: 51,162 km (0.118 R)
• M2: 184,903 km (0.113 R)
• M3: 313,707 km (0.076 R)
• M4: 558,299 km (0.111 R)
• M5: 795,412 km (0.118 R)
• M6: 1,628,522 km (0.116 R)
• M7: 2,035,877 km (0.063 R)
• M8: 2,336,120 km (0.068 R)
• M9: 2,508,008 km (0.071 R)
• M10: 2,901,451 km (0.069 R)
• M11: 3,809,659 km (0.118 R)
• M12: 5,927,367 km (0.096 R)
• M13: 6,967,072 km (0.111 R)
• M14: 7,787,168 km (0.119 R)
• M15: 8,874,295 km (0.098 R)
• M16: 9,134,895 km (0.087 R)
• M17: 10,171,458 km (0.103 R)
• M18: 11,713,812 km (0.066 R)
• M19: 12,282,135 km (0.037 R)
• M20: 12,934,980 km (0.083 R)
• M21: 14,027,044 km (0.115 R)
• M22: 14,309,336 km (0.111 R)
• M23: 20,240,293 km (0.1 R)
• M24: 20,510,167 km (0.092 R)
• M25: 31,786,705 km (0.051 R)
• M26: 37,016,497 km (0.041 R)
• M27: 39,483,067 km (0.046 R)
• M28: 42,349,811 km (0.066 R)
• M29: 45,660,112 km (0.086 R)
• M30: 52,619,854 km (0.111 R)
• M31: 54,160,862 km (0.1 R)
• M32: 60,439,933 km (0.064 R)
• M33: 62,129,492 km (0.062 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 10,465 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit