🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.96 AU - 1 AU

Year: 371 Days

Day: 15.2 Hours

Environment

Temp: 21 °C

Axial Tilt: 3.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.96 AU - 1.12 AU

Year: 406 Days

Day: 22.3 Hours

Environment

Temp: 13 °C

Axial Tilt: 34.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.41 AU - 2.51 AU

Year: 1477 Days

Day: 37.3 Hours

Environment

Temp: -103 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,042,021 km

• M1: 157,676 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.6 AU - 3 AU

Year: 1794 Days

Day: 41.7 Hours

Environment

Temp: -105 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.74 AU - 4.46 AU

Year: 2615 Days

Day: 32.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.66 AU - 3.8 AU

Year: 2758 Days

Day: 36.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.9

Radius: 14.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.34 AU - 4.46 AU

Year: 3534 Days

Day: 7.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 19,042,021 km

• M1: 179,218 km (0.08 R)
• M2: 709,094 km (0.1 R)
• M3: 1,395,449 km (0.113 R)
• M4: 2,162,587 km (0.108 R)
• M5: 2,740,633 km (0.089 R)
• M6: 4,013,860 km (0.074 R)
• M7: 4,784,290 km (0.085 R)
• M8: 5,264,199 km (0.095 R)
• M9: 6,136,355 km (0.1 R)
• M10: 7,486,925 km (0.079 R)
• M11: 8,073,348 km (0.043 R)
• M12: 8,757,160 km (0.107 R)
• M13: 9,909,513 km (0.114 R)
• M14: 11,003,671 km (0.076 R)
• M15: 12,772,517 km (0.106 R)
• M16: 13,656,939 km (0.105 R)
• M17: 14,724,170 km (0.119 R)
• M18: 16,148,193 km (0.089 R)
• M19: 18,371,067 km (0.101 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 18,125 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit