🌌 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: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.47 AU - 0.71 AU

Year: 288 Days

Day: 35.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 18 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.47 AU - 0.73 AU

Year: 296 Days

Day: 40.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,579,253 km

• M1: 127,906 km (0.055 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.54 AU - 0.7 AU

Year: 310 Days

Day: 24.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 18 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 19,579,253 km

• M1: 39,195 km (0.062 R)
• M2: 258,356 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.7

Radius: 8.5

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.01 AU - 1.21 AU

Year: 744 Days

Day: 12.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 19,579,253 km

• M1: 105,766 km (0.043 R)
• M2: 380,876 km (0.113 R)
• M3: 1,074,262 km (0.094 R)
• M4: 1,422,676 km (0.101 R)
• M5: 1,896,602 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.9

Radius: 10.3

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.95 AU - 1.47 AU

Year: 846 Days

Day: 8.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,579,253 km

• M1: 128,205 km (0.075 R)
• M2: 797,057 km (0.081 R)
• M3: 1,175,091 km (0.077 R)
• M4: 1,623,885 km (0.076 R)
• M5: 3,062,568 km (0.075 R)
• M6: 3,383,904 km (0.076 R)
• M7: 4,016,703 km (0.106 R)
• M8: 4,674,485 km (0.109 R)
• M9: 6,120,946 km (0.054 R)
• M10: 7,316,233 km (0.089 R)
• M11: 7,650,136 km (0.068 R)
• M12: 8,019,194 km (0.058 R)
• M13: 8,529,771 km (0.097 R)
• M14: 8,926,954 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.1

Radius: 14.8

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.91 AU - 3.15 AU

Year: 2559 Days

Day: 7.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,579,253 km

• M1: 200,162 km (0.105 R)
• M2: 862,282 km (0.117 R)
• M3: 1,560,306 km (0.118 R)
• M4: 2,328,940 km (0.034 R)
• M5: 3,929,338 km (0.116 R)
• M6: 4,415,381 km (0.101 R)
• M7: 5,734,834 km (0.12 R)
• M8: 6,611,179 km (0.1 R)
• M9: 7,979,850 km (0.05 R)
• M10: 10,722,278 km (0.028 R)
• M11: 11,354,329 km (0.106 R)
• M12: 12,999,905 km (0.064 R)
• M13: 13,536,962 km (0.05 R)
• M14: 14,135,503 km (0.036 R)
• M15: 17,397,335 km (0.099 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 17,105 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit