🌌 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: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.47 AU - 0.65 AU

Year: 266 Days

Day: 44.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.49 AU - 0.69 AU

Year: 288 Days

Day: 44 Hours

Environment

Temp: -134 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.55 AU - 0.77 AU

Year: 341 Days

Day: 32.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 126.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.5

Radius: 8.4

Gravity: 10.69 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.6 AU - 0.92 AU

Year: 421 Days

Day: 14.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,476,066 km

• M1: 104,419 km (0.116 R)
• M2: 379,231 km (0.07 R)
• M3: 818,749 km (0.063 R)
• M4: 1,494,333 km (0.113 R)
• M5: 2,167,823 km (0.119 R)
• M6: 3,423,098 km (0.117 R)
• M7: 3,785,125 km (0.108 R)
• M8: 5,233,532 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.5

Radius: 11.9

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.42 AU - 1.9 AU

Year: 1360 Days

Day: 14.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,476,066 km

• M1: 156,629 km (0.058 R)
• M2: 663,915 km (0.106 R)
• M3: 1,061,247 km (0.031 R)
• M4: 1,591,721 km (0.089 R)
• M5: 2,897,561 km (0.094 R)
• M6: 3,342,316 km (0.097 R)
• M7: 4,118,579 km (0.077 R)
• M8: 4,583,080 km (0.044 R)
• M9: 7,855,085 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47

Radius: 7.7

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 5.64 AU - 8.74 AU

Year: 12258 Days

Day: 24.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,476,066 km

• M1: 198,068 km (0.056 R)
• M2: 756,068 km (0.076 R)
• M3: 2,524,763 km (0.082 R)
• M4: 2,843,257 km (0.088 R)
• M5: 5,455,535 km (0.108 R)
• M6: 6,298,818 km (0.118 R)
• M7: 7,070,893 km (0.062 R)
• M8: 8,624,467 km (0.086 R)
• M9: 10,757,284 km (0.049 R)
• M10: 19,772,949 km (0.1 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 16,756 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit