🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.61 AU - 0.61 AU

Year: 180 Days

Day: 18.7 Hours

Environment

Temp: 151 °C

Axial Tilt: 16.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.87 AU - 1.31 AU

Year: 431 Days

Day: 27.2 Hours

Environment

Temp: 9 °C

Axial Tilt: 22.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.39 AU - 1.93 AU

Year: 810 Days

Day: 34.1 Hours

Environment

Temp: -59 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 61,030,109 km

• M1: 462,257 km (0.045 R)
• M2: 858,093 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.2

Radius: 10.9

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.73 AU - 4.77 AU

Year: 3318 Days

Day: 8.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 73 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,030,109 km

• M1: 135,685 km (0.091 R)
• M2: 498,909 km (0.081 R)
• M3: 861,235 km (0.101 R)
• M4: 1,408,015 km (0.097 R)
• M5: 1,768,546 km (0.045 R)
• M6: 2,505,316 km (0.112 R)
• M7: 2,989,115 km (0.107 R)
• M8: 3,377,770 km (0.102 R)
• M9: 4,123,217 km (0.119 R)
• M10: 4,535,508 km (0.111 R)
• M11: 5,179,677 km (0.069 R)
• M12: 5,551,128 km (0.106 R)
• M13: 6,318,266 km (0.033 R)
• M14: 6,868,038 km (0.112 R)
• M15: 7,582,966 km (0.117 R)
• M16: 10,027,844 km (0.102 R)
• M17: 10,397,650 km (0.051 R)
• M18: 14,047,689 km (0.1 R)
• M19: 16,187,238 km (0.098 R)
• M20: 17,276,160 km (0.061 R)
• M21: 18,658,744 km (0.08 R)
• M22: 20,440,006 km (0.06 R)
• M23: 22,751,891 km (0.112 R)
• M24: 23,752,701 km (0.043 R)
• M25: 25,082,177 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 214.7

Radius: 7.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 15.37 AU - 17.87 AU

Year: 25662 Days

Day: 18.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,030,109 km

• M1: 131,197 km (0.088 R)
• M2: 426,204 km (0.109 R)
• M3: 1,301,202 km (0.054 R)
• M4: 1,750,295 km (0.072 R)
• M5: 3,150,232 km (0.104 R)
• M6: 5,604,684 km (0.074 R)
• M7: 6,496,587 km (0.109 R)
• M8: 6,785,909 km (0.094 R)
• M9: 8,657,229 km (0.103 R)
• M10: 10,790,644 km (0.088 R)
• M11: 19,250,404 km (0.063 R)
• M12: 22,177,735 km (0.108 R)
• M13: 34,808,283 km (0.049 R)
• M14: 36,337,921 km (0.066 R)
• M15: 46,315,800 km (0.06 R)
• M16: 55,708,302 km (0.069 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: 236 - 10,991 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit