🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.45 AU - 0.67 AU

Year: 271 Days

Day: 21.2 Hours

Environment

Temp: -120 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.5 AU - 0.66 AU

Year: 285 Days

Day: 46.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 44.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.3

Radius: 14.3

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.68 AU - 0.88 AU

Year: 445 Days

Day: 14.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,901,149 km

• M1: 177,872 km (0.08 R)
• M2: 724,951 km (0.112 R)
• M3: 1,184,965 km (0.102 R)
• M4: 1,655,300 km (0.072 R)
• M5: 2,167,823 km (0.115 R)
• M6: 3,015,295 km (0.119 R)
• M7: 3,717,058 km (0.117 R)
• M8: 4,845,176 km (0.106 R)
• M9: 5,514,028 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.8

Radius: 11.8

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.95 AU - 1.31 AU

Year: 776 Days

Day: 6.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,901,149 km

• M1: 146,756 km (0.099 R)
• M2: 518,805 km (0.091 R)
• M3: 971,339 km (0.074 R)
• M4: 1,369,419 km (0.102 R)
• M5: 1,990,848 km (0.095 R)
• M6: 2,467,168 km (0.115 R)
• M7: 2,980,588 km (0.114 R)
• M8: 3,711,374 km (0.108 R)
• M9: 4,322,481 km (0.086 R)
• M10: 5,073,163 km (0.07 R)
• M11: 6,115,860 km (0.108 R)
• M12: 6,654,861 km (0.099 R)
• M13: 7,319,674 km (0.101 R)
• M14: 8,283,234 km (0.093 R)
• M15: 9,162,720 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.6

Radius: 9.9

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.38 AU - 5.58 AU

Year: 8283 Days

Day: 11.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,901,149 km

• M1: 123,119 km (0.104 R)
• M2: 536,458 km (0.115 R)
• M3: 891,753 km (0.107 R)
• M4: 1,990,549 km (0.079 R)
• M5: 5,017,363 km (0.092 R)
• M6: 5,875,756 km (0.103 R)
• M7: 7,009,408 km (0.112 R)
• M8: 7,764,129 km (0.119 R)
• M9: 8,613,995 km (0.051 R)
• M10: 9,170,349 km (0.055 R)
• M11: 15,870,240 km (0.091 R)
• M12: 17,102,627 km (0.115 R)
• M13: 19,903,997 km (0.093 R)
• M14: 25,431,488 km (0.084 R)
• M15: 34,602,137 km (0.12 R)
• M16: 35,354,016 km (0.099 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 15,530 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit