🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.63 AU - 0.83 AU

Year: 231 Days

Day: 23.5 Hours

Environment

Temp: 159 °C

Axial Tilt: 36.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 28,424,487 km

• M1: 44,281 km (0.088 R)
• M2: 70,161 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.84 AU - 1.04 AU

Year: 338 Days

Day: 38.7 Hours

Environment

Temp: 40 °C

Axial Tilt: 7.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.06 AU - 1.34 AU

Year: 488 Days

Day: 30.2 Hours

Environment

Temp: 8 °C

Axial Tilt: 36.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 28,424,487 km

• M1: 278,402 km (0.059 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.35 AU - 1.47 AU

Year: 621 Days

Day: 24.1 Hours

Environment

Temp: -37 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,424,487 km

• M1: 223,948 km (0.045 R)

Asteroid Belt

Center: 3.25 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.9

Radius: 11.9

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.9 AU - 5.26 AU

Year: 4246 Days

Day: 9.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,424,487 km

• M1: 148,102 km (0.049 R)
• M2: 1,116,150 km (0.063 R)
• M3: 2,188,318 km (0.109 R)
• M4: 5,152,300 km (0.11 R)
• M5: 9,156,437 km (0.104 R)
• M6: 10,160,687 km (0.116 R)
• M7: 10,910,322 km (0.103 R)
• M8: 12,564,426 km (0.111 R)
• M9: 15,072,434 km (0.055 R)
• M10: 16,685,099 km (0.116 R)
• M11: 19,643,846 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.5

Radius: 11.5

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.86 AU - 12.48 AU

Year: 12926 Days

Day: 12.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,424,487 km

• M1: 143,016 km (0.113 R)
• M2: 529,128 km (0.083 R)
• M3: 914,342 km (0.109 R)
• M4: 1,304,344 km (0.118 R)
• M5: 1,670,559 km (0.095 R)
• M6: 2,503,221 km (0.091 R)
• M7: 3,552,501 km (0.115 R)
• M8: 4,822,736 km (0.078 R)
• M9: 5,519,563 km (0.108 R)
• M10: 5,921,981 km (0.119 R)
• M11: 8,497,608 km (0.037 R)
• M12: 9,153,894 km (0.107 R)
• M13: 11,931,627 km (0.079 R)
• M14: 13,104,773 km (0.106 R)
• M15: 15,172,964 km (0.098 R)
• M16: 17,511,328 km (0.054 R)
• M17: 18,702,277 km (0.111 R)
• M18: 19,481,832 km (0.062 R)
• M19: 24,314,292 km (0.079 R)
• M20: 25,557,599 km (0.094 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 18,299 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit