🌌 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: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.58 AU - 0.88 AU

Year: 231 Days

Day: 23.3 Hours

Environment

Temp: 171 °C

Axial Tilt: 32.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,198,999 km

• M1: 34,108 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.87 AU - 3.05 AU

Year: 1431 Days

Day: 41.7 Hours

Environment

Temp: -97 °C

Axial Tilt: 24.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.65 AU - 2.75 AU

Year: 1645 Days

Day: 27.2 Hours

Environment

Temp: -100 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,198,999 km

• M1: 33,660 km (0.068 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.72 AU - 3.38 AU

Year: 1975 Days

Day: 35.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.53 AU - 5.43 AU

Year: 3517 Days

Day: 29.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 65.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.01 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.8

Radius: 11.3

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.24 AU - 6.82 AU

Year: 4823 Days

Day: 8.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,198,999 km

• M1: 143,614 km (0.094 R)
• M2: 522,246 km (0.088 R)
• M3: 1,088,175 km (0.072 R)
• M4: 1,626,278 km (0.041 R)
• M5: 2,631,127 km (0.033 R)
• M6: 3,227,873 km (0.085 R)
• M7: 4,499,306 km (0.11 R)
• M8: 5,355,155 km (0.093 R)
• M9: 5,771,785 km (0.088 R)
• M10: 6,131,119 km (0.099 R)
• M11: 6,670,569 km (0.116 R)
• M12: 7,329,847 km (0.1 R)
• M13: 8,879,082 km (0.058 R)
• M14: 9,359,441 km (0.096 R)
• M15: 10,297,420 km (0.067 R)
• M16: 11,100,012 km (0.049 R)
• M17: 15,163,240 km (0.113 R)
• M18: 16,050,655 km (0.077 R)
• M19: 18,365,233 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.7

Radius: 9.4

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.8 AU - 7.06 AU

Year: 5355 Days

Day: 14 Hours

Environment

Temp: -144 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,198,999 km

• M1: 116,836 km (0.051 R)
• M2: 464,801 km (0.101 R)
• M3: 852,857 km (0.082 R)
• M4: 1,274,723 km (0.031 R)
• M5: 1,791,285 km (0.102 R)
• M6: 2,225,568 km (0.105 R)
• M7: 2,728,964 km (0.078 R)
• M8: 3,728,129 km (0.059 R)
• M9: 4,571,861 km (0.038 R)
• M10: 5,568,033 km (0.112 R)
• M11: 5,909,265 km (0.037 R)
• M12: 7,830,401 km (0.055 R)
• M13: 8,953,732 km (0.085 R)
• M14: 9,953,943 km (0.06 R)
• M15: 11,970,223 km (0.06 R)
• M16: 12,645,957 km (0.073 R)
• M17: 15,182,389 km (0.032 R)
• M18: 18,858,607 km (0.053 R)
• M19: 19,701,890 km (0.06 R)
• M20: 21,767,089 km (0.077 R)
• M21: 22,150,508 km (0.083 R)
• M22: 22,616,505 km (0.12 R)
• M23: 28,547,612 km (0.079 R)
• M24: 32,662,451 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 850.5

Radius: 6

Gravity: 23.63 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 13.1 AU - 13.5 AU

Year: 17988 Days

Day: 24.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,198,999 km

• M1: 74,949 km (0.096 R)
• M2: 358,137 km (0.105 R)
• M3: 769,531 km (0.08 R)
• M4: 1,050,027 km (0.056 R)
• M5: 2,386,684 km (0.111 R)
• M6: 3,394,675 km (0.095 R)
• M7: 3,745,931 km (0.049 R)
• M8: 4,088,959 km (0.115 R)
• M9: 5,020,056 km (0.076 R)
• M10: 5,244,752 km (0.063 R)
• M11: 5,877,252 km (0.117 R)
• M12: 8,921,419 km (0.069 R)
• M13: 12,329,857 km (0.096 R)
• M14: 14,246,654 km (0.117 R)
• M15: 17,015,711 km (0.106 R)
• M16: 17,353,353 km (0.088 R)
• M17: 17,955,036 km (0.088 R)
• M18: 19,109,333 km (0.089 R)
• M19: 20,787,821 km (0.043 R)
• M20: 23,072,629 km (0.088 R)
• M21: 23,590,687 km (0.094 R)
• M22: 25,082,177 km (0.113 R)
• M23: 27,090,828 km (0.086 R)
• M24: 28,134,273 km (0.112 R)
• M25: 35,372,267 km (0.115 R)
• M26: 37,322,574 km (0.071 R)
• M27: 40,680,299 km (0.106 R)
• M28: 48,156,901 km (0.053 R)
• M29: 48,832,635 km (0.115 R)
• M30: 53,739,893 km (0.076 R)
• M31: 54,102,519 km (0.097 R)
• M32: 55,384,572 km (0.077 R)
• M33: 69,122,444 km (0.098 R)
• M34: 71,941,766 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 14,388 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit