🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.46 AU - 0.7 AU

Year: 162 Days

Day: 33.3 Hours

Environment

Temp: 189 °C

Axial Tilt: 35.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.73

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.8 AU - 1.1 AU

Year: 340 Days

Day: 20.9 Hours

Environment

Temp: 47 °C

Axial Tilt: 24.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 27,337,575 km

• M1: 499,358 km (0.103 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.35 AU - 1.47 AU

Year: 615 Days

Day: 19.8 Hours

Environment

Temp: -33 °C

Axial Tilt: 140.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.41 AU - 2.07 AU

Year: 843 Days

Day: 35.1 Hours

Environment

Temp: -54 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,337,575 km

• M1: 93,648 km (0.109 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.62 AU - 1.9 AU

Year: 857 Days

Day: 22.5 Hours

Environment

Temp: -64 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.79 AU - 1.91 AU

Year: 924 Days

Day: 33.1 Hours

Environment

Temp: -58 °C

Axial Tilt: 38.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,337,575 km

• M1: 50,265 km (0.099 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.32 AU - 2.9 AU

Year: 1548 Days

Day: 17.9 Hours

Environment

Temp: -95 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.3

Radius: 9.4

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.24 AU - 5.44 AU

Year: 4530 Days

Day: 10.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,337,575 km

• M1: 116,836 km (0.095 R)
• M2: 410,646 km (0.101 R)
• M3: 708,047 km (0.04 R)
• M4: 1,095,056 km (0.081 R)
• M5: 1,634,207 km (0.106 R)
• M6: 3,260,934 km (0.114 R)
• M7: 3,685,493 km (0.083 R)
• M8: 4,078,337 km (0.104 R)
• M9: 4,427,050 km (0.028 R)
• M10: 4,974,578 km (0.08 R)
• M11: 5,793,178 km (0.12 R)
• M12: 7,053,839 km (0.089 R)
• M13: 7,353,483 km (0.075 R)
• M14: 12,935,429 km (0.081 R)
• M15: 13,385,419 km (0.068 R)
• M16: 13,691,197 km (0.097 R)
• M17: 16,482,245 km (0.112 R)
• M18: 18,290,135 km (0.058 R)
• M19: 24,502,336 km (0.103 R)
• M20: 25,037,448 km (0.03 R)
• M21: 26,931,357 km (0.079 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: 510 - 15,850 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit