🌌 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: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.55 AU - 0.69 AU

Year: 180 Days

Day: 14.7 Hours

Environment

Temp: 163 °C

Axial Tilt: 16.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.71 AU - 1.13 AU

Year: 326 Days

Day: 19.7 Hours

Environment

Temp: 41 °C

Axial Tilt: 46.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 45,206,548 km

• M1: 50,115 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.04 AU - 1.18 AU

Year: 431 Days

Day: 40.4 Hours

Environment

Temp: -2 °C

Axial Tilt: 20.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.1 AU - 1.16 AU

Year: 443 Days

Day: 38.2 Hours

Environment

Temp: -6 °C

Axial Tilt: 33.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.54 AU - 1.68 AU

Year: 754 Days

Day: 18 Hours

Environment

Temp: -50 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.81 AU - 2.31 AU

Year: 1091 Days

Day: 34.8 Hours

Environment

Temp: -79 °C

Axial Tilt: 20.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,206,548 km

• M1: 363,224 km (0.11 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.54 AU - 4.4 AU

Year: 2919 Days

Day: 27.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 45,206,548 km

• M1: 96,341 km (0.112 R)
• M2: 1,388,418 km (0.03 R)

Asteroid Belt

Center: 6.19 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.2

Radius: 12.5

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.97 AU - 9.83 AU

Year: 8982 Days

Day: 5.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 45,206,548 km

• M1: 155,731 km (0.074 R)
• M2: 801,845 km (0.094 R)
• M3: 1,220,419 km (0.111 R)
• M4: 2,120,251 km (0.11 R)
• M5: 2,706,375 km (0.119 R)
• M6: 3,541,131 km (0.087 R)
• M7: 4,045,725 km (0.084 R)
• M8: 5,263,302 km (0.087 R)
• M9: 5,820,704 km (0.076 R)
• M10: 6,862,503 km (0.119 R)
• M11: 9,082,536 km (0.103 R)
• M12: 11,313,339 km (0.08 R)
• M13: 13,166,408 km (0.1 R)
• M14: 16,691,981 km (0.093 R)
• M15: 21,207,293 km (0.112 R)
• M16: 21,699,470 km (0.045 R)
• M17: 22,621,442 km (0.059 R)
• M18: 24,097,524 km (0.087 R)
• M19: 28,018,185 km (0.074 R)
• M20: 28,710,674 km (0.06 R)
• M21: 30,439,726 km (0.096 R)
• M22: 30,856,506 km (0.096 R)
• M23: 31,382,791 km (0.094 R)
• M24: 32,129,733 km (0.099 R)
• M25: 32,779,287 km (0.102 R)
• M26: 39,025,597 km (0.083 R)
• M27: 39,517,624 km (0.057 R)
• M28: 40,765,869 km (0.114 R)
• M29: 42,040,143 km (0.104 R)
• M30: 44,668,129 km (0.118 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 20,330 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit