🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.79 AU - 0.83 AU

Year: 270 Days

Day: 23 Hours

Environment

Temp: 103 °C

Axial Tilt: 14 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 14,954,448 km

• M1: 141,220 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.68 AU - 0.98 AU

Year: 280 Days

Day: 16.6 Hours

Environment

Temp: 161 °C

Axial Tilt: 26 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.44 AU - 1.6 AU

Year: 695 Days

Day: 37.2 Hours

Environment

Temp: -45 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.9 AU - 2.72 AU

Year: 1302 Days

Day: 44.5 Hours

Environment

Temp: -93 °C

Axial Tilt: 167.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.05 AU - 3.19 AU

Year: 1573 Days

Day: 39.9 Hours

Environment

Temp: -88 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 14,954,448 km

• M1: 29,620 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768

Radius: 10.5

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.93 AU - 7.35 AU

Year: 6345 Days

Day: 13.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 14,954,448 km

• M1: 130,599 km (0.059 R)
• M2: 494,720 km (0.057 R)
• M3: 3,958,958 km (0.11 R)
• M4: 4,655,785 km (0.078 R)
• M5: 6,094,468 km (0.066 R)
• M6: 6,599,660 km (0.073 R)
• M7: 7,096,025 km (0.109 R)
• M8: 8,244,189 km (0.092 R)
• M9: 9,512,031 km (0.081 R)
• M10: 13,188,997 km (0.108 R)
• M11: 14,325,492 km (0.118 R)
• M12: 16,341,772 km (0.034 R)
• M13: 20,779,144 km (0.076 R)
• M14: 21,232,426 km (0.11 R)
• M15: 22,080,496 km (0.101 R)
• M16: 25,441,362 km (0.082 R)
• M17: 25,786,484 km (0.097 R)
• M18: 26,663,128 km (0.072 R)
• M19: 28,941,354 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.2

Radius: 15

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.07 AU - 8.25 AU

Year: 6374 Days

Day: 8.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,954,448 km

• M1: 188,942 km (0.083 R)
• M2: 814,261 km (0.12 R)
• M3: 1,532,331 km (0.069 R)
• M4: 2,697,549 km (0.09 R)
• M5: 3,489,370 km (0.077 R)
• M6: 4,279,696 km (0.096 R)
• M7: 4,748,536 km (0.075 R)
• M8: 5,860,945 km (0.073 R)
• M9: 8,908,254 km (0.097 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 18,406 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit