🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.51 AU - 0.67 AU

Year: 166 Days

Day: 47 Hours

Environment

Temp: 226 °C

Axial Tilt: 34.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.69 AU - 0.87 AU

Year: 252 Days

Day: 21.3 Hours

Environment

Temp: 93 °C

Axial Tilt: 37.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1 AU - 1.08 AU

Year: 387 Days

Day: 41.1 Hours

Environment

Temp: 23 °C

Axial Tilt: 27.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.95

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.24 AU - 2.8 AU

Year: 1461 Days

Day: 14.8 Hours

Environment

Temp: -80 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.26 AU - 3.72 AU

Year: 1888 Days

Day: 29.4 Hours

Environment

Temp: -112 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 74,604,912 km

• M1: 78,389 km (0.094 R)
• M2: 1,914,853 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.19 AU - 3.23 AU

Year: 2101 Days

Day: 45.6 Hours

Environment

Temp: -102 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.09 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.8

Radius: 14.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.53 AU - 5.39 AU

Year: 4035 Days

Day: 10 Hours

Environment

Temp: -144 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,604,912 km

• M1: 179,368 km (0.099 R)
• M2: 983,157 km (0.046 R)
• M3: 1,889,720 km (0.065 R)
• M4: 2,682,439 km (0.089 R)
• M5: 3,357,425 km (0.099 R)
• M6: 5,242,508 km (0.104 R)
• M7: 6,276,379 km (0.076 R)
• M8: 10,240,124 km (0.085 R)
• M9: 13,723,959 km (0.027 R)
• M10: 14,680,787 km (0.067 R)
• M11: 19,250,852 km (0.037 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.4

Radius: 12

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.6 AU - 7.68 AU

Year: 7713 Days

Day: 7 Hours

Environment

Temp: -170 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,604,912 km

• M1: 149,299 km (0.098 R)
• M2: 981,063 km (0.099 R)
• M3: 1,902,137 km (0.061 R)
• M4: 2,765,915 km (0.099 R)
• M5: 5,259,861 km (0.106 R)
• M6: 5,701,324 km (0.112 R)
• M7: 8,674,881 km (0.085 R)
• M8: 11,481,337 km (0.091 R)
• M9: 13,580,345 km (0.104 R)
• M10: 15,923,945 km (0.087 R)
• M11: 18,167,764 km (0.09 R)
• M12: 23,274,287 km (0.113 R)
• M13: 24,905,054 km (0.113 R)
• M14: 27,445,375 km (0.102 R)
• M15: 32,718,401 km (0.106 R)
• M16: 34,543,196 km (0.119 R)
• M17: 40,424,337 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.8

Radius: 6.4

Gravity: 16.72 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 12.67 AU - 15.61 AU

Year: 19421 Days

Day: 19.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,604,912 km

• M1: 80,633 km (0.091 R)
• M2: 292,913 km (0.11 R)
• M3: 820,245 km (0.051 R)
• M4: 1,046,736 km (0.095 R)
• M5: 1,612,665 km (0.087 R)
• M6: 2,031,988 km (0.103 R)
• M7: 3,498,945 km (0.102 R)
• M8: 4,332,504 km (0.094 R)
• M9: 5,067,029 km (0.12 R)
• M10: 5,800,508 km (0.109 R)
• M11: 6,256,333 km (0.06 R)
• M12: 6,558,670 km (0.037 R)
• M13: 7,099,616 km (0.113 R)
• M14: 9,965,462 km (0.076 R)
• M15: 10,740,828 km (0.064 R)
• M16: 13,167,455 km (0.12 R)
• M17: 13,592,612 km (0.115 R)
• M18: 15,698,950 km (0.071 R)
• M19: 16,501,094 km (0.09 R)
• M20: 17,414,838 km (0.098 R)
• M21: 21,118,133 km (0.079 R)
• M22: 23,720,089 km (0.108 R)
• M23: 24,882,614 km (0.107 R)
• M24: 25,097,885 km (0.086 R)
• M25: 27,435,053 km (0.063 R)
• M26: 28,128,439 km (0.084 R)
• M27: 31,519,972 km (0.086 R)
• M28: 32,923,799 km (0.117 R)
• M29: 36,684,091 km (0.068 R)
• M30: 40,721,139 km (0.116 R)
• M31: 42,846,476 km (0.099 R)
• M32: 44,093,524 km (0.115 R)
• M33: 45,686,143 km (0.117 R)
• M34: 52,088,183 km (0.114 R)
• M35: 60,996,587 km (0.028 R)
• M36: 62,375,131 km (0.108 R)
• M37: 63,572,962 km (0.069 R)
• M38: 68,307,435 km (0.108 R)
• M39: 72,610,767 km (0.093 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: 529 - 12,048 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit