🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.41 AU - 0.65 AU

Year: 142 Days

Day: 39.2 Hours

Environment

Temp: 159 °C

Axial Tilt: 20.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.98 AU - 1.44 AU

Year: 491 Days

Day: 21.3 Hours

Environment

Temp: 11 °C

Axial Tilt: 1.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.2 AU - 1.56 AU

Year: 598 Days

Day: 26.9 Hours

Environment

Temp: -24 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.31 AU - 2.83 AU

Year: 1520 Days

Day: 38.4 Hours

Environment

Temp: -95 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,738,133 km

• M1: 45,777 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.2

Radius: 11.1

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.73 AU - 7.11 AU

Year: 6002 Days

Day: 6.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,738,133 km

• M1: 138,079 km (0.089 R)
• M2: 646,861 km (0.103 R)
• M3: 1,116,748 km (0.108 R)
• M4: 1,687,614 km (0.082 R)
• M5: 2,160,044 km (0.12 R)
• M6: 3,553,997 km (0.1 R)
• M7: 4,496,762 km (0.086 R)
• M8: 6,382,444 km (0.06 R)
• M9: 8,873,248 km (0.086 R)
• M10: 9,846,233 km (0.119 R)
• M11: 10,264,359 km (0.12 R)
• M12: 12,214,367 km (0.116 R)
• M13: 15,805,015 km (0.082 R)
• M14: 16,703,799 km (0.102 R)
• M15: 17,099,186 km (0.066 R)
• M16: 19,897,414 km (0.106 R)
• M17: 22,266,147 km (0.1 R)
• M18: 32,697,756 km (0.096 R)
• M19: 33,213,420 km (0.119 R)
• M20: 37,200,054 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 19.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.6

Radius: 3.7

Gravity: 22.54 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 17.58 AU - 21.58 AU

Year: 31967 Days

Day: 20.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,738,133 km

• M1: 100,380 km (0.044 R)
• M2: 325,824 km (0.099 R)
• M3: 575,503 km (0.089 R)
• M4: 894,595 km (0.1 R)
• M5: 2,632,923 km (0.106 R)
• M6: 2,858,217 km (0.073 R)
• M7: 3,641,511 km (0.074 R)
• M8: 4,593,702 km (0.095 R)
• M9: 9,829,328 km (0.092 R)
• M10: 14,882,295 km (0.032 R)
• M11: 16,000,539 km (0.073 R)
• M12: 18,045,842 km (0.105 R)
• M13: 20,354,735 km (0.092 R)
• M14: 28,089,394 km (0.083 R)
• M15: 29,667,203 km (0.059 R)
• M16: 31,689,018 km (0.118 R)
• M17: 33,531,764 km (0.036 R)
• M18: 57,562,568 km (0.069 R)
• M19: 77,371,271 km (0.083 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 14,348 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit