🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.47 AU - 0.65 AU

Year: 271 Days

Day: 15.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.63 AU - 0.71 AU

Year: 354 Days

Day: 26.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 64 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,021,259 km

• M1: 146,307 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.6

Radius: 9.6

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.57 AU - 0.93 AU

Year: 419 Days

Day: 8.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 93,021,259 km

• M1: 119,379 km (0.072 R)
• M2: 443,109 km (0.072 R)
• M3: 904,618 km (0.069 R)
• M4: 1,206,507 km (0.105 R)
• M5: 1,625,231 km (0.112 R)
• M6: 2,367,237 km (0.117 R)
• M7: 2,759,632 km (0.108 R)
• M8: 3,354,433 km (0.098 R)
• M9: 4,328,016 km (0.088 R)
• M10: 4,918,180 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.3

Radius: 9.6

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.07 AU - 1.43 AU

Year: 902 Days

Day: 12.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 93,021,259 km

• M1: 119,379 km (0.085 R)
• M2: 562,189 km (0.095 R)
• M3: 888,911 km (0.112 R)
• M4: 1,223,860 km (0.065 R)
• M5: 1,601,146 km (0.058 R)
• M6: 1,976,188 km (0.113 R)
• M7: 2,778,780 km (0.085 R)
• M8: 3,240,888 km (0.064 R)
• M9: 3,738,152 km (0.103 R)
• M10: 4,135,783 km (0.057 R)
• M11: 4,668,052 km (0.069 R)
• M12: 5,303,693 km (0.116 R)
• M13: 5,724,363 km (0.078 R)
• M14: 7,387,143 km (0.055 R)
• M15: 8,041,484 km (0.117 R)
• M16: 9,122,777 km (0.106 R)
• M17: 9,436,484 km (0.104 R)
• M18: 10,055,520 km (0.033 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864

Radius: 6.5

Gravity: 20.45 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 9.32 AU - 13 AU

Year: 24072 Days

Day: 16.4 Hours

Environment

Temp: -242 °C

Axial Tilt: 144.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 93,021,259 km

• M1: 81,531 km (0.082 R)
• M2: 413,638 km (0.11 R)
• M3: 858,393 km (0.093 R)
• M4: 1,464,414 km (0.068 R)
• M5: 2,717,745 km (0.085 R)
• M6: 3,069,599 km (0.095 R)
• M7: 3,543,824 km (0.103 R)
• M8: 4,489,731 km (0.075 R)
• M9: 6,628,083 km (0.117 R)
• M10: 10,104,439 km (0.108 R)
• M11: 11,908,738 km (0.068 R)
• M12: 16,141,760 km (0.111 R)
• M13: 20,969,732 km (0.094 R)
• M14: 24,904,306 km (0.107 R)
• M15: 34,052,963 km (0.083 R)
• M16: 34,915,395 km (0.118 R)
• M17: 42,346,071 km (0.109 R)
• M18: 51,701,024 km (0.094 R)
• M19: 57,157,906 km (0.114 R)
• M20: 58,784,633 km (0.081 R)
• M21: 68,060,449 km (0.08 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: 300 - 18,508 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit