🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.52 AU - 0.54 AU

Year: 245 Days

Day: 46.2 Hours

Environment

Temp: -110 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.8

Radius: 13

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.67 AU - 0.77 AU

Year: 388 Days

Day: 11.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,053,990 km

• M1: 161,715 km (0.061 R)
• M2: 677,828 km (0.098 R)
• M3: 1,313,469 km (0.115 R)
• M4: 1,765,105 km (0.113 R)
• M5: 2,375,016 km (0.039 R)
• M6: 2,796,283 km (0.082 R)
• M7: 3,222,787 km (0.101 R)
• M8: 3,957,911 km (0.088 R)
• M9: 4,527,131 km (0.098 R)
• M10: 4,936,580 km (0.104 R)
• M11: 5,483,510 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.6

Radius: 14.1

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.64 AU - 0.84 AU

Year: 405 Days

Day: 13.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,053,990 km

• M1: 175,478 km (0.097 R)
• M2: 640,728 km (0.085 R)
• M3: 1,381,686 km (0.102 R)
• M4: 2,599,712 km (0.105 R)
• M5: 3,050,450 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 9.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.06 AU - 4 AU

Year: 4217 Days

Day: 12.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 115.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,053,990 km

• M1: 113,246 km (0.103 R)
• M2: 454,927 km (0.066 R)
• M3: 969,095 km (0.075 R)
• M4: 1,423,573 km (0.105 R)
• M5: 1,987,109 km (0.086 R)
• M6: 2,390,275 km (0.089 R)
• M7: 2,787,308 km (0.071 R)
• M8: 3,714,515 km (0.048 R)
• M9: 6,544,458 km (0.083 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.5

Radius: 7.9

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.35 AU - 8.35 AU

Year: 15341 Days

Day: 15.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,053,990 km

• M1: 124,316 km (0.111 R)
• M2: 447,597 km (0.066 R)
• M3: 749,037 km (0.107 R)
• M4: 1,212,491 km (0.086 R)
• M5: 1,624,932 km (0.098 R)
• M6: 1,998,029 km (0.107 R)
• M7: 2,964,880 km (0.09 R)
• M8: 3,633,882 km (0.052 R)
• M9: 4,244,540 km (0.045 R)
• M10: 4,887,961 km (0.081 R)
• M11: 7,036,037 km (0.036 R)
• M12: 7,432,022 km (0.11 R)
• M13: 8,860,083 km (0.119 R)
• M14: 9,638,890 km (0.093 R)
• M15: 23,513,345 km (0.052 R)
• M16: 24,002,530 km (0.114 R)
• M17: 24,398,665 km (0.103 R)
• M18: 43,043,197 km (0.096 R)
• M19: 61,868,294 km (0.08 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 10,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit