🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.57 AU - 0.61 AU

Year: 297 Days

Day: 47.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.4

Radius: 12

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.67 AU - 0.81 AU

Year: 418 Days

Day: 8 Hours

Environment

Temp: -151 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,677,209 km

• M1: 149,299 km (0.117 R)
• M2: 544,237 km (0.112 R)
• M3: 1,185,713 km (0.067 R)
• M4: 1,838,857 km (0.037 R)
• M5: 2,368,882 km (0.086 R)
• M6: 2,832,187 km (0.117 R)
• M7: 3,378,967 km (0.084 R)
• M8: 3,802,927 km (0.1 R)
• M9: 4,386,359 km (0.108 R)
• M10: 4,922,668 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.7

Radius: 14.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.73 AU - 0.91 AU

Year: 487 Days

Day: 13.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,677,209 km

• M1: 184,005 km (0.066 R)
• M2: 696,378 km (0.097 R)
• M3: 1,363,585 km (0.081 R)
• M4: 1,825,842 km (0.116 R)
• M5: 2,791,047 km (0.104 R)
• M6: 3,418,611 km (0.098 R)
• M7: 4,308,568 km (0.058 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494

Radius: 4.4

Gravity: 25.52 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.48 AU - 7.3 AU

Year: 10596 Days

Day: 15.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,677,209 km

• M1: 54,753 km (0.068 R)
• M2: 220,956 km (0.117 R)
• M3: 710,889 km (0.12 R)
• M4: 857,196 km (0.065 R)
• M5: 1,808,489 km (0.041 R)
• M6: 2,154,060 km (0.087 R)
• M7: 2,742,578 km (0.119 R)
• M8: 7,042,170 km (0.09 R)
• M9: 7,891,138 km (0.098 R)
• M10: 10,434,302 km (0.118 R)
• M11: 10,689,516 km (0.084 R)
• M12: 12,196,415 km (0.098 R)
• M13: 13,118,237 km (0.09 R)
• M14: 14,085,388 km (0.086 R)
• M15: 15,425,934 km (0.08 R)
• M16: 15,624,151 km (0.107 R)
• M17: 18,505,855 km (0.086 R)
• M18: 18,955,247 km (0.081 R)
• M19: 20,426,392 km (0.12 R)
• M20: 22,475,734 km (0.071 R)
• M21: 24,838,632 km (0.1 R)
• M22: 25,385,263 km (0.118 R)
• M23: 27,847,195 km (0.085 R)
• M24: 28,042,869 km (0.037 R)
• M25: 28,935,071 km (0.11 R)
• M26: 29,337,489 km (0.084 R)
• M27: 35,371,369 km (0.103 R)
• M28: 43,878,851 km (0.056 R)
• M29: 44,276,781 km (0.114 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 12,482 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit