🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.27 AU - 1.31 AU

Year: 520 Days

Day: 25.7 Hours

Environment

Temp: 4 °C

Axial Tilt: 1.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.33 AU - 1.41 AU

Year: 569 Days

Day: 13.7 Hours

Environment

Temp: 7 °C

Axial Tilt: 22.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.19 AU - 1.61 AU

Year: 588 Days

Day: 22 Hours

Environment

Temp: 6 °C

Axial Tilt: 26 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.59 AU - 1.73 AU

Year: 759 Days

Day: 13.3 Hours

Environment

Temp: -31 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 60,517,606 km

• M1: 49,816 km (0.089 R)
• M2: 1,182,422 km (0.108 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.4 AU - 1.98 AU

Year: 779 Days

Day: 39.5 Hours

Environment

Temp: -36 °C

Axial Tilt: 44.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.47 AU - 2.79 AU

Year: 1513 Days

Day: 26.4 Hours

Environment

Temp: -76 °C

Axial Tilt: 24.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 11.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.7

Radius: 13.2

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 10.74 AU - 12.16 AU

Year: 13745 Days

Day: 9.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,517,606 km

• M1: 164,857 km (0.088 R)
• M2: 957,426 km (0.101 R)
• M3: 1,826,440 km (0.106 R)
• M4: 2,707,721 km (0.071 R)
• M5: 3,171,924 km (0.086 R)
• M6: 3,608,301 km (0.099 R)
• M7: 4,293,459 km (0.09 R)
• M8: 4,830,066 km (0.104 R)
• M9: 8,504,340 km (0.091 R)
• M10: 9,406,116 km (0.071 R)
• M11: 11,939,855 km (0.05 R)
• M12: 14,340,302 km (0.074 R)
• M13: 20,776,751 km (0.073 R)
• M14: 24,030,804 km (0.056 R)
• M15: 26,657,892 km (0.036 R)
• M16: 27,932,765 km (0.039 R)
• M17: 31,297,520 km (0.106 R)
• M18: 32,836,134 km (0.079 R)
• M19: 40,457,847 km (0.106 R)

Kuiper Belt

Range: 30.9 - 56.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 11,370 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit