🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.51 AU - 0.61 AU

Year: 160 Days

Day: 23.9 Hours

Environment

Temp: 172 °C

Axial Tilt: 14.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,445,221 km

• M1: 305,030 km (0.025 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.14 AU - 1.46 AU

Year: 564 Days

Day: 34 Hours

Environment

Temp: -30 °C

Axial Tilt: 171.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.1 AU - 1.72 AU

Year: 638 Days

Day: 38.4 Hours

Environment

Temp: -46 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,445,221 km

• M1: 905,815 km (0.045 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.96 AU - 2.44 AU

Year: 1243 Days

Day: 20.3 Hours

Environment

Temp: -83 °C

Axial Tilt: 46.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,445,221 km

• M1: 129,552 km (0.094 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.23 AU - 2.69 AU

Year: 1469 Days

Day: 25.7 Hours

Environment

Temp: -90 °C

Axial Tilt: 20.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,445,221 km

• M1: 47,722 km (0.108 R)
• M2: 757,264 km (0.09 R)

Asteroid Belt

Center: 3.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736

Radius: 12.9

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.03 AU - 5.61 AU

Year: 4673 Days

Day: 5.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,445,221 km

• M1: 160,369 km (0.07 R)
• M2: 647,908 km (0.084 R)
• M3: 1,226,703 km (0.045 R)
• M4: 1,773,782 km (0.088 R)
• M5: 2,751,404 km (0.06 R)
• M6: 4,463,851 km (0.118 R)
• M7: 4,972,484 km (0.085 R)
• M8: 6,834,080 km (0.067 R)
• M9: 8,536,802 km (0.079 R)
• M10: 11,598,323 km (0.079 R)
• M11: 12,317,889 km (0.105 R)
• M12: 12,914,934 km (0.109 R)
• M13: 14,328,933 km (0.047 R)
• M14: 15,384,196 km (0.116 R)
• M15: 16,669,990 km (0.12 R)
• M16: 18,344,588 km (0.041 R)
• M17: 22,832,076 km (0.077 R)
• M18: 23,657,856 km (0.117 R)
• M19: 24,659,115 km (0.037 R)
• M20: 25,130,797 km (0.114 R)
• M21: 25,608,463 km (0.091 R)
• M22: 26,173,344 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732

Radius: 14.6

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 5.83 AU - 6.69 AU

Year: 5964 Days

Day: 6 Hours

Environment

Temp: -151 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,445,221 km

• M1: 181,612 km (0.082 R)
• M2: 677,230 km (0.04 R)
• M3: 1,833,771 km (0.078 R)
• M4: 2,597,169 km (0.043 R)
• M5: 3,977,658 km (0.081 R)
• M6: 4,954,681 km (0.044 R)
• M7: 5,441,174 km (0.106 R)
• M8: 6,215,044 km (0.105 R)
• M9: 8,255,409 km (0.101 R)
• M10: 9,151,650 km (0.046 R)
• M11: 10,757,433 km (0.044 R)
• M12: 11,877,473 km (0.041 R)
• M13: 14,121,740 km (0.083 R)
• M14: 15,047,003 km (0.107 R)
• M15: 16,954,226 km (0.11 R)
• M16: 18,066,336 km (0.101 R)
• M17: 19,156,755 km (0.07 R)
• M18: 21,170,193 km (0.09 R)
• M19: 22,151,555 km (0.091 R)
• M20: 22,770,441 km (0.101 R)
• M21: 24,531,956 km (0.112 R)
• M22: 29,983,602 km (0.074 R)
• M23: 31,901,596 km (0.117 R)
• M24: 32,890,737 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.1

Radius: 13.7

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 5.97 AU - 7.03 AU

Year: 6311 Days

Day: 5.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,445,221 km

• M1: 172,038 km (0.059 R)
• M2: 600,336 km (0.111 R)
• M3: 1,359,097 km (0.101 R)
• M4: 2,289,296 km (0.115 R)
• M5: 2,896,514 km (0.109 R)
• M6: 4,157,026 km (0.093 R)
• M7: 5,601,543 km (0.075 R)
• M8: 6,747,762 km (0.119 R)
• M9: 8,941,764 km (0.103 R)
• M10: 12,719,559 km (0.115 R)
• M11: 15,109,535 km (0.119 R)
• M12: 15,658,260 km (0.052 R)
• M13: 18,465,912 km (0.1 R)
• M14: 19,663,294 km (0.11 R)
• M15: 23,162,837 km (0.099 R)
• M16: 27,057,916 km (0.068 R)
• M17: 28,601,766 km (0.069 R)
• M18: 33,688,692 km (0.08 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 17,260 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit