🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.59 AU - 0.63 AU

Year: 171 Days

Day: 12.7 Hours

Environment

Temp: 186 °C

Axial Tilt: 34.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.8 AU - 0.88 AU

Year: 277 Days

Day: 13.5 Hours

Environment

Temp: 128 °C

Axial Tilt: 39.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 78,780,455 km

• M1: 61,335 km (0.095 R)
• M2: 451,636 km (0.041 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.1 AU - 1.44 AU

Year: 515 Days

Day: 21 Hours

Environment

Temp: 7 °C

Axial Tilt: 38.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.38 AU - 1.64 AU

Year: 668 Days

Day: 27.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.66 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 13.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 891.5

Radius: 5.2

Gravity: 32.97 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 13.2 AU - 14.42 AU

Year: 18470 Days

Day: 15.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,780,455 km

• M1: 1,529,489 km (0.041 R)
• M2: 1,719,628 km (0.094 R)
• M3: 2,044,704 km (0.069 R)
• M4: 2,501,576 km (0.119 R)
• M5: 2,692,762 km (0.096 R)
• M6: 2,919,253 km (0.11 R)
• M7: 4,452,481 km (0.079 R)
• M8: 4,806,280 km (0.061 R)
• M9: 7,627,098 km (0.11 R)
• M10: 8,342,026 km (0.106 R)
• M11: 11,005,467 km (0.09 R)
• M12: 13,962,568 km (0.072 R)
• M13: 15,423,092 km (0.109 R)
• M14: 15,904,647 km (0.1 R)
• M15: 16,813,454 km (0.066 R)
• M16: 17,756,519 km (0.055 R)
• M17: 23,109,131 km (0.032 R)
• M18: 26,948,710 km (0.091 R)
• M19: 28,237,944 km (0.048 R)
• M20: 32,744,431 km (0.12 R)
• M21: 35,582,602 km (0.097 R)
• M22: 37,132,735 km (0.119 R)
• M23: 41,742,743 km (0.095 R)
• M24: 46,221,703 km (0.102 R)
• M25: 49,437,010 km (0.115 R)
• M26: 51,899,241 km (0.101 R)

Kuiper Belt

Range: 30.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 14,482 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit