🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.13 AU - 1.25 AU

Year: 452 Days

Day: 17.9 Hours

Environment

Temp: 25 °C

Axial Tilt: 33.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.26 AU - 2.08 AU

Year: 752 Days

Day: 31.4 Hours

Environment

Temp: -36 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.62 AU - 1.84 AU

Year: 792 Days

Day: 41.9 Hours

Environment

Temp: -27 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,544,337 km

• M1: 139,575 km (0.084 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.88 AU - 5.6 AU

Year: 3594 Days

Day: 42.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,544,337 km

• M1: 2,277,927 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.3

Radius: 13

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.68 AU - 8.84 AU

Year: 6812 Days

Day: 13.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,544,337 km

• M1: 161,715 km (0.08 R)
• M2: 646,712 km (0.035 R)
• M3: 3,727,381 km (0.083 R)
• M4: 4,142,066 km (0.06 R)
• M5: 6,563,158 km (0.044 R)
• M6: 8,585,721 km (0.093 R)
• M7: 11,293,592 km (0.113 R)
• M8: 11,700,199 km (0.054 R)
• M9: 12,435,323 km (0.085 R)
• M10: 16,452,475 km (0.088 R)
• M11: 20,353,090 km (0.112 R)
• M12: 22,758,025 km (0.087 R)
• M13: 28,219,095 km (0.085 R)
• M14: 31,903,990 km (0.06 R)
• M15: 34,072,112 km (0.11 R)
• M16: 34,709,249 km (0.064 R)
• M17: 36,890,685 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.4

Radius: 14.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.6 AU - 10.6 AU

Year: 8783 Days

Day: 13.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,544,337 km

• M1: 181,612 km (0.111 R)
• M2: 760,705 km (0.068 R)
• M3: 1,338,003 km (0.119 R)
• M4: 2,726,272 km (0.069 R)
• M5: 3,390,636 km (0.081 R)
• M6: 5,047,432 km (0.085 R)
• M7: 6,190,659 km (0.063 R)
• M8: 6,933,562 km (0.113 R)
• M9: 10,083,196 km (0.048 R)
• M10: 11,997,899 km (0.051 R)
• M11: 14,145,077 km (0.048 R)
• M12: 15,690,573 km (0.076 R)
• M13: 17,141,522 km (0.063 R)
• M14: 20,924,853 km (0.082 R)
• M15: 22,436,240 km (0.085 R)
• M16: 24,534,500 km (0.086 R)
• M17: 25,944,160 km (0.055 R)
• M18: 27,781,521 km (0.111 R)
• M19: 33,813,308 km (0.07 R)
• M20: 34,352,309 km (0.107 R)
• M21: 35,226,559 km (0.12 R)
• M22: 35,891,970 km (0.081 R)
• M23: 37,133,632 km (0.084 R)

Kuiper Belt

Range: 31.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 20,190 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit