🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.82 AU - 0.96 AU

Year: 308 Days

Day: 16.6 Hours

Environment

Temp: 118 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.09 AU - 1.13 AU

Year: 429 Days

Day: 20.4 Hours

Environment

Temp: 4 °C

Axial Tilt: 25.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.1 AU - 1.24 AU

Year: 465 Days

Day: 23.9 Hours

Environment

Temp: -4 °C

Axial Tilt: 42.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 36,166,166 km

• M1: 616,493 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.26 AU - 1.5 AU

Year: 595 Days

Day: 36.4 Hours

Environment

Temp: -24 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.01 AU - 2.39 AU

Year: 1198 Days

Day: 40 Hours

Environment

Temp: -86 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,166,166 km

• M1: 1,040,752 km (0.055 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.81 AU - 3.21 AU

Year: 1917 Days

Day: 43.6 Hours

Environment

Temp: -97 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.11 AU - 3.8 AU

Year: 2352 Days

Day: 37.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.3

Radius: 12.6

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.68 AU - 6.78 AU

Year: 5035 Days

Day: 6.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,166,166 km

• M1: 156,779 km (0.103 R)
• M2: 626,217 km (0.08 R)
• M3: 1,039,855 km (0.107 R)
• M4: 1,512,734 km (0.068 R)
• M5: 2,770,702 km (0.112 R)
• M6: 3,647,046 km (0.105 R)
• M7: 4,314,552 km (0.06 R)
• M8: 5,842,994 km (0.051 R)
• M9: 6,370,925 km (0.109 R)
• M10: 7,401,504 km (0.112 R)
• M11: 7,862,415 km (0.095 R)
• M12: 8,277,400 km (0.094 R)
• M13: 8,910,348 km (0.073 R)
• M14: 11,647,391 km (0.067 R)
• M15: 12,571,906 km (0.028 R)
• M16: 13,096,396 km (0.083 R)
• M17: 13,818,505 km (0.11 R)
• M18: 15,194,656 km (0.105 R)
• M19: 18,834,222 km (0.066 R)
• M20: 19,405,836 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.3

Radius: 7.9

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 12.18 AU - 15.26 AU

Year: 18655 Days

Day: 15.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,166,166 km

• M1: 98,286 km (0.108 R)
• M2: 526,435 km (0.053 R)
• M3: 1,085,183 km (0.084 R)
• M4: 1,662,631 km (0.077 R)
• M5: 1,938,190 km (0.072 R)
• M6: 2,284,808 km (0.114 R)
• M7: 2,695,155 km (0.081 R)
• M8: 2,954,558 km (0.099 R)
• M9: 4,165,254 km (0.115 R)
• M10: 4,678,374 km (0.059 R)
• M11: 7,803,175 km (0.099 R)
• M12: 9,148,359 km (0.032 R)
• M13: 12,163,055 km (0.045 R)
• M14: 12,613,793 km (0.105 R)
• M15: 13,009,031 km (0.098 R)
• M16: 13,480,563 km (0.068 R)
• M17: 19,271,198 km (0.107 R)
• M18: 22,083,937 km (0.075 R)
• M19: 23,836,775 km (0.071 R)
• M20: 28,508,268 km (0.054 R)
• M21: 38,363,327 km (0.064 R)
• M22: 44,273,939 km (0.098 R)
• M23: 59,870,564 km (0.087 R)
• M24: 61,173,860 km (0.038 R)
• M25: 61,549,800 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 36.1

Radius: 6.6

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 13.92 AU - 22.52 AU

Year: 28549 Days

Day: 24.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,166,166 km

• M1: 83,176 km (0.108 R)
• M2: 411,544 km (0.117 R)
• M3: 1,095,804 km (0.092 R)
• M4: 1,475,484 km (0.069 R)
• M5: 3,392,281 km (0.086 R)
• M6: 5,454,189 km (0.11 R)
• M7: 10,129,571 km (0.114 R)
• M8: 10,503,267 km (0.071 R)
• M9: 10,741,576 km (0.108 R)
• M10: 13,051,666 km (0.056 R)
• M11: 16,236,754 km (0.085 R)
• M12: 23,679,997 km (0.08 R)
• M13: 25,009,174 km (0.043 R)
• M14: 25,692,088 km (0.055 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 18,906 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit