🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.45 AU - 0.59 AU

Year: 246 Days

Day: 13.4 Hours

Environment

Temp: -109 °C

Axial Tilt: 41.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.52 AU - 0.74 AU

Year: 328 Days

Day: 30.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98

Radius: 13.4

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.74 AU - 0.8 AU

Year: 443 Days

Day: 9.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 34,282,170 km

• M1: 166,652 km (0.092 R)
• M2: 587,172 km (0.067 R)
• M3: 1,147,565 km (0.061 R)
• M4: 1,671,906 km (0.078 R)
• M5: 2,683,786 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.6

Radius: 11.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.68 AU - 0.86 AU

Year: 443 Days

Day: 9.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,282,170 km

• M1: 149,448 km (0.065 R)
• M2: 519,105 km (0.077 R)
• M3: 1,023,698 km (0.101 R)
• M4: 1,506,750 km (0.104 R)
• M5: 2,207,915 km (0.102 R)
• M6: 3,068,252 km (0.12 R)

Asteroid Belt

Center: 4.2 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.1

Radius: 7

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 6.81 AU - 8.45 AU

Year: 13826 Days

Day: 21.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,282,170 km

• M1: 87,365 km (0.056 R)
• M2: 348,413 km (0.06 R)
• M3: 813,812 km (0.103 R)
• M4: 1,086,230 km (0.086 R)
• M5: 1,315,863 km (0.079 R)
• M6: 1,709,156 km (0.08 R)
• M7: 3,459,002 km (0.039 R)
• M8: 4,159,569 km (0.086 R)
• M9: 6,060,210 km (0.107 R)
• M10: 7,659,411 km (0.093 R)
• M11: 9,564,839 km (0.111 R)
• M12: 9,918,040 km (0.079 R)
• M13: 10,556,972 km (0.084 R)
• M14: 10,886,536 km (0.085 R)
• M15: 14,686,921 km (0.059 R)
• M16: 16,066,063 km (0.045 R)
• M17: 16,565,421 km (0.098 R)
• M18: 17,268,681 km (0.116 R)
• M19: 18,803,555 km (0.11 R)
• M20: 25,685,954 km (0.08 R)
• M21: 31,781,170 km (0.087 R)
• M22: 32,074,531 km (0.097 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 16,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit