🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.5 AU - 0.52 AU

Year: 134 Days

Day: 20.2 Hours

Environment

Temp: 163 °C

Axial Tilt: 19.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.47 AU - 0.71 AU

Year: 167 Days

Day: 41.6 Hours

Environment

Temp: 178 °C

Axial Tilt: 46 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.83 AU - 1.19 AU

Year: 375 Days

Day: 25.4 Hours

Environment

Temp: 17 °C

Axial Tilt: 46.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.17 AU - 1.25 AU

Year: 491 Days

Day: 40.2 Hours

Environment

Temp: 15 °C

Axial Tilt: 17.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.6 AU - 3.9 AU

Year: 2679 Days

Day: 44.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 2.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.45 AU - 4.91 AU

Year: 3153 Days

Day: 31.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,391,141 km

• M1: 855,251 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 877.6

Radius: 6.3

Gravity: 22.11 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 11.87 AU - 15.65 AU

Year: 18832 Days

Day: 17.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,391,141 km

• M1: 78,389 km (0.094 R)
• M2: 286,779 km (0.06 R)
• M3: 496,216 km (0.107 R)
• M4: 855,700 km (0.059 R)
• M5: 1,081,593 km (0.116 R)
• M6: 1,972,897 km (0.073 R)
• M7: 2,241,275 km (0.097 R)
• M8: 4,260,847 km (0.117 R)
• M9: 4,639,778 km (0.091 R)
• M10: 5,829,380 km (0.07 R)
• M11: 10,353,669 km (0.114 R)
• M12: 18,798,468 km (0.086 R)
• M13: 20,290,408 km (0.071 R)
• M14: 20,675,473 km (0.052 R)
• M15: 22,061,348 km (0.085 R)
• M16: 23,402,642 km (0.09 R)
• M17: 27,050,137 km (0.117 R)
• M18: 29,805,281 km (0.116 R)
• M19: 39,034,273 km (0.073 R)
• M20: 45,921,909 km (0.082 R)
• M21: 71,573,156 km (0.084 R)
• M22: 75,414,531 km (0.077 R)
• M23: 77,268,946 km (0.078 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: 537 - 16,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit