🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.6 AU - 0.9 AU

Year: 242 Days

Day: 14.9 Hours

Environment

Temp: 107 °C

Axial Tilt: 35.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.61 AU - 0.97 AU

Year: 262 Days

Day: 45 Hours

Environment

Temp: 173 °C

Axial Tilt: 5.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.18 AU - 1.22 AU

Year: 490 Days

Day: 22.2 Hours

Environment

Temp: 5 °C

Axial Tilt: 6.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.06 AU - 1.48 AU

Year: 534 Days

Day: 27 Hours

Environment

Temp: -19 °C

Axial Tilt: 23.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 45,782,217 km

• M1: 43,234 km (0.103 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.43 AU - 1.58 AU

Year: 685 Days

Day: 24.8 Hours

Environment

Temp: -35 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.06 AU - 3.62 AU

Year: 2275 Days

Day: 27.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 118 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,782,217 km

• M1: 108,010 km (0.098 R)

Asteroid Belt

Center: 5.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998

Radius: 10.8

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 6.46 AU - 8.64 AU

Year: 7733 Days

Day: 13.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,782,217 km

• M1: 134,488 km (0.04 R)
• M2: 488,587 km (0.036 R)
• M3: 945,907 km (0.092 R)
• M4: 1,330,224 km (0.049 R)
• M5: 1,759,869 km (0.032 R)
• M6: 2,446,524 km (0.033 R)
• M7: 3,099,817 km (0.095 R)
• M8: 4,548,523 km (0.098 R)
• M9: 5,603,936 km (0.079 R)
• M10: 7,362,160 km (0.093 R)
• M11: 12,555,001 km (0.087 R)
• M12: 15,195,404 km (0.026 R)
• M13: 16,541,336 km (0.029 R)
• M14: 17,030,670 km (0.103 R)
• M15: 19,546,458 km (0.064 R)
• M16: 26,519,215 km (0.035 R)
• M17: 27,093,521 km (0.091 R)
• M18: 32,314,636 km (0.068 R)
• M19: 34,306,980 km (0.09 R)
• M20: 34,988,848 km (0.105 R)
• M21: 38,291,221 km (0.078 R)
• M22: 39,024,998 km (0.098 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 15,630 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit