🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.52 AU - 0.62 AU

Year: 282 Days

Day: 46 Hours

Environment

Temp: -134 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,816,865 km

• M1: 481,556 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.55 AU - 0.75 AU

Year: 344 Days

Day: 13.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.1

Radius: 10

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.74 AU - 0.76 AU

Year: 426 Days

Day: 10.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,816,865 km

• M1: 124,316 km (0.084 R)
• M2: 493,673 km (0.11 R)
• M3: 874,848 km (0.071 R)
• M4: 1,586,635 km (0.084 R)
• M5: 2,116,511 km (0.058 R)
• M6: 2,596,271 km (0.097 R)
• M7: 3,055,985 km (0.072 R)
• M8: 3,556,839 km (0.057 R)
• M9: 4,042,733 km (0.065 R)
• M10: 5,428,159 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.3

Radius: 13.4

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.8 AU - 1.16 AU

Year: 636 Days

Day: 7.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,816,865 km

• M1: 166,802 km (0.094 R)
• M2: 718,219 km (0.109 R)
• M3: 1,234,033 km (0.106 R)
• M4: 2,350,781 km (0.114 R)
• M5: 2,814,983 km (0.074 R)
• M6: 3,401,856 km (0.077 R)
• M7: 3,931,582 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.7

Radius: 7.8

Gravity: 14.82 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 8.98 AU - 9 AU

Year: 17683 Days

Day: 16.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,816,865 km

• M1: 105,018 km (0.03 R)
• M2: 777,460 km (0.049 R)
• M3: 1,054,964 km (0.099 R)
• M4: 1,799,214 km (0.052 R)
• M5: 3,165,940 km (0.103 R)
• M6: 3,797,093 km (0.049 R)
• M7: 4,142,814 km (0.105 R)
• M8: 4,861,183 km (0.081 R)
• M9: 5,231,288 km (0.109 R)
• M10: 7,228,868 km (0.073 R)
• M11: 8,113,291 km (0.053 R)
• M12: 8,903,766 km (0.041 R)
• M13: 11,198,597 km (0.067 R)
• M14: 14,455,044 km (0.085 R)
• M15: 16,176,317 km (0.1 R)
• M16: 16,918,322 km (0.084 R)
• M17: 17,510,880 km (0.075 R)
• M18: 17,769,085 km (0.032 R)
• M19: 21,166,154 km (0.083 R)
• M20: 21,557,502 km (0.117 R)
• M21: 31,185,771 km (0.054 R)
• M22: 31,820,215 km (0.069 R)
• M23: 51,141,678 km (0.106 R)
• M24: 55,468,347 km (0.119 R)
• M25: 56,774,785 km (0.113 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: 170 - 19,565 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit