🌌 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: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.99 AU - 1.41 AU

Year: 458 Days

Day: 25.3 Hours

Environment

Temp: 32 °C

Axial Tilt: 5.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 4.61 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.2

Radius: 12.9

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.79 AU - 8.23 AU

Year: 7895 Days

Day: 5.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,141,151 km

• M1: 186,848 km (0.114 R)
• M2: 812,765 km (0.075 R)
• M3: 2,287,800 km (0.054 R)
• M4: 3,559,981 km (0.114 R)
• M5: 5,675,145 km (0.043 R)
• M6: 6,519,475 km (0.096 R)
• M7: 13,532,773 km (0.084 R)
• M8: 14,603,894 km (0.118 R)
• M9: 16,238,400 km (0.105 R)
• M10: 16,809,565 km (0.112 R)
• M11: 17,772,825 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.8

Radius: 10.4

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.13 AU - 9.19 AU

Year: 8118 Days

Day: 13.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 88,141,151 km

• M1: 129,851 km (0.1 R)
• M2: 651,200 km (0.062 R)
• M3: 1,079,947 km (0.098 R)
• M4: 1,591,572 km (0.041 R)
• M5: 3,012,004 km (0.062 R)
• M6: 3,702,248 km (0.098 R)
• M7: 10,772,543 km (0.112 R)

Planet 4 - Ice Giant

Semi-Major Axis: 15.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859

Radius: 6

Gravity: 23.86 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 12.6 AU - 19.38 AU

Year: 22267 Days

Day: 17.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 88,141,151 km

• M1: 80,633 km (0.097 R)
• M2: 326,722 km (0.047 R)
• M3: 659,727 km (0.084 R)
• M4: 1,500,766 km (0.027 R)
• M5: 2,134,762 km (0.067 R)
• M6: 2,987,469 km (0.116 R)
• M7: 3,475,308 km (0.113 R)
• M8: 4,644,864 km (0.12 R)
• M9: 7,027,809 km (0.11 R)
• M10: 7,323,564 km (0.119 R)
• M11: 7,887,548 km (0.102 R)
• M12: 10,246,407 km (0.045 R)
• M13: 10,499,078 km (0.118 R)
• M14: 13,037,903 km (0.05 R)
• M15: 13,712,141 km (0.105 R)
• M16: 14,806,748 km (0.104 R)
• M17: 15,375,370 km (0.051 R)
• M18: 16,298,239 km (0.054 R)
• M19: 16,642,763 km (0.075 R)
• M20: 16,904,410 km (0.066 R)
• M21: 17,887,118 km (0.108 R)
• M22: 18,719,032 km (0.096 R)
• M23: 18,907,376 km (0.119 R)
• M24: 21,782,348 km (0.093 R)
• M25: 22,200,474 km (0.117 R)
• M26: 30,411,153 km (0.073 R)
• M27: 31,196,691 km (0.025 R)
• M28: 35,042,852 km (0.06 R)
• M29: 36,197,150 km (0.079 R)
• M30: 41,706,241 km (0.08 R)
• M31: 44,995,748 km (0.11 R)
• M32: 57,667,735 km (0.105 R)
• M33: 62,158,813 km (0.119 R)
• M34: 64,704,071 km (0.069 R)
• M35: 66,657,969 km (0.101 R)
• M36: 78,478,295 km (0.079 R)
• M37: 80,450,593 km (0.106 R)
• M38: 80,948,754 km (0.086 R)
• M39: 86,044,357 km (0.083 R)

Kuiper Belt

Range: 31.5 - 46.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 15,719 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit