🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.81 AU - 1.93 AU

Year: 745 Days

Day: 43.3 Hours

Environment

Temp: 138 °C

Axial Tilt: 46.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.11 AU - 2.31 AU

Year: 958 Days

Day: 14.3 Hours

Environment

Temp: 16 °C

Axial Tilt: 18.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.03 AU - 2.59 AU

Year: 1023 Days

Day: 21 Hours

Environment

Temp: 13 °C

Axial Tilt: 11.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.34 AU - 2.76 AU

Year: 1187 Days

Day: 34.5 Hours

Environment

Temp: -5 °C

Axial Tilt: 49.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.01 AU - 3.97 AU

Year: 1901 Days

Day: 20 Hours

Environment

Temp: -52 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 6.02 AU - 9.92 AU

Year: 6559 Days

Day: 14.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 133.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 13.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 18.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95.3

Radius: 5.6

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 15.43 AU - 21.13 AU

Year: 22783 Days

Day: 16.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,373,833 km

• M1: 69,713 km (0.091 R)
• M2: 299,794 km (0.096 R)
• M3: 496,366 km (0.063 R)
• M4: 732,431 km (0.034 R)
• M5: 1,926,222 km (0.104 R)
• M6: 3,182,844 km (0.08 R)
• M7: 4,670,894 km (0.1 R)
• M8: 7,409,283 km (0.087 R)
• M9: 11,697,805 km (0.088 R)
• M10: 13,748,942 km (0.111 R)
• M11: 14,112,614 km (0.099 R)
• M12: 14,859,108 km (0.106 R)
• M13: 16,094,637 km (0.1 R)
• M14: 16,634,685 km (0.116 R)
• M15: 21,398,928 km (0.085 R)
• M16: 22,802,007 km (0.083 R)
• M17: 24,353,486 km (0.093 R)
• M18: 25,698,969 km (0.1 R)
• M19: 28,930,732 km (0.075 R)
• M20: 32,530,207 km (0.089 R)
• M21: 33,284,180 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.7

Radius: 5.2

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 18.31 AU - 18.67 AU

Year: 23176 Days

Day: 21.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 72.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,373,833 km

• M1: 64,626 km (0.087 R)
• M2: 325,375 km (0.057 R)
• M3: 791,373 km (0.107 R)
• M4: 2,267,904 km (0.094 R)
• M5: 3,195,411 km (0.102 R)
• M6: 3,618,174 km (0.035 R)
• M7: 9,295,862 km (0.088 R)
• M8: 10,154,105 km (0.051 R)
• M9: 11,478,495 km (0.114 R)
• M10: 11,903,503 km (0.117 R)
• M11: 13,641,231 km (0.083 R)
• M12: 15,104,747 km (0.069 R)
• M13: 18,175,842 km (0.108 R)
• M14: 19,004,016 km (0.102 R)
• M15: 24,309,205 km (0.099 R)
• M16: 25,110,601 km (0.028 R)
• M17: 29,047,269 km (0.105 R)
• M18: 39,333,469 km (0.094 R)
• M19: 40,436,903 km (0.106 R)
• M20: 45,357,626 km (0.087 R)
• M21: 58,122,363 km (0.119 R)

Kuiper Belt

Range: 37.7 - 54.7 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 10,698 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit