🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.6 AU - 0.6 AU

Year: 170 Days

Day: 27 Hours

Environment

Temp: 209 °C

Axial Tilt: 37.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.9 AU - 1.04 AU

Year: 349 Days

Day: 18.3 Hours

Environment

Temp: 45 °C

Axial Tilt: 11.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.87 AU - 1.33 AU

Year: 421 Days

Day: 13.3 Hours

Environment

Temp: 17 °C

Axial Tilt: 27.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.15 AU - 1.59 AU

Year: 586 Days

Day: 40.4 Hours

Environment

Temp: -5 °C

Axial Tilt: 77 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.46 AU - 1.96 AU

Year: 817 Days

Day: 24.6 Hours

Environment

Temp: -48 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,093,216 km

• M1: 696,976 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416

Radius: 13.4

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.28 AU - 9.56 AU

Year: 10560 Days

Day: 7.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,093,216 km

• M1: 168,447 km (0.075 R)
• M2: 837,598 km (0.115 R)
• M3: 1,964,220 km (0.077 R)
• M4: 3,250,762 km (0.089 R)
• M5: 4,012,664 km (0.096 R)
• M6: 5,099,193 km (0.114 R)
• M7: 5,826,987 km (0.088 R)
• M8: 7,411,976 km (0.111 R)
• M9: 8,474,570 km (0.104 R)
• M10: 12,002,536 km (0.076 R)
• M11: 16,746,434 km (0.094 R)
• M12: 23,368,235 km (0.085 R)
• M13: 32,920,956 km (0.06 R)
• M14: 35,212,945 km (0.105 R)
• M15: 36,798,832 km (0.118 R)
• M16: 38,550,324 km (0.117 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 236 - 13,842 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit