🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.44 AU - 0.58 AU

Year: 139 Days

Day: 25 Hours

Environment

Temp: 171 °C

Axial Tilt: 9.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 21,240,001 km

• M1: 236,664 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.58 AU - 0.86 AU

Year: 233 Days

Day: 32.3 Hours

Environment

Temp: 123 °C

Axial Tilt: 38 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.15 AU - 1.83 AU

Year: 693 Days

Day: 31.3 Hours

Environment

Temp: -60 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.57 AU - 1.67 AU

Year: 785 Days

Day: 15.2 Hours

Environment

Temp: -56 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.8 AU - 2.98 AU

Year: 1407 Days

Day: 14.3 Hours

Environment

Temp: -96 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.72 AU - 3.9 AU

Year: 2293 Days

Day: 24.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,240,001 km

• M1: 131,945 km (0.095 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.33 AU - 3.51 AU

Year: 2408 Days

Day: 42.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 140.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 9.3

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 7.92 AU - 9.86 AU

Year: 10094 Days

Day: 11.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,240,001 km

• M1: 115,639 km (0.092 R)
• M2: 691,741 km (0.057 R)
• M3: 4,388,304 km (0.116 R)
• M4: 5,372,658 km (0.077 R)
• M5: 6,327,840 km (0.102 R)
• M6: 6,787,106 km (0.116 R)
• M7: 7,772,507 km (0.068 R)
• M8: 9,315,759 km (0.112 R)
• M9: 12,020,488 km (0.056 R)
• M10: 13,645,869 km (0.079 R)
• M11: 14,609,728 km (0.063 R)
• M12: 18,056,164 km (0.074 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 16,165 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit