🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.61 AU - 0.93 AU

Year: 253 Days

Day: 28.3 Hours

Environment

Temp: 106 °C

Axial Tilt: 36.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.91 AU - 0.93 AU

Year: 331 Days

Day: 26.3 Hours

Environment

Temp: 41 °C

Axial Tilt: 124.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.09 AU - 1.67 AU

Year: 608 Days

Day: 45.6 Hours

Environment

Temp: -33 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 2.16 AU - 2.22 AU

Year: 1214 Days

Day: 21 Hours

Environment

Temp: -83 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,978,794 km

• M1: 483,800 km (0.09 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.86 AU - 2.74 AU

Year: 1307 Days

Day: 46.2 Hours

Environment

Temp: -91 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,978,794 km

• M1: 113,096 km (0.07 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.41 AU - 2.59 AU

Year: 1481 Days

Day: 20.8 Hours

Environment

Temp: -94 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.7

Radius: 10.9

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.29 AU - 5.09 AU

Year: 3806 Days

Day: 13.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,978,794 km

• M1: 136,583 km (0.077 R)
• M2: 1,146,069 km (0.082 R)
• M3: 1,513,033 km (0.093 R)
• M4: 1,879,099 km (0.036 R)
• M5: 2,777,733 km (0.104 R)
• M6: 3,295,043 km (0.118 R)
• M7: 3,964,044 km (0.108 R)
• M8: 5,433,245 km (0.09 R)
• M9: 6,712,756 km (0.086 R)
• M10: 7,613,036 km (0.083 R)
• M11: 8,820,440 km (0.096 R)
• M12: 9,409,856 km (0.059 R)
• M13: 10,067,189 km (0.099 R)
• M14: 10,623,543 km (0.045 R)
• M15: 13,006,637 km (0.111 R)
• M16: 14,672,260 km (0.112 R)
• M17: 17,430,695 km (0.117 R)
• M18: 18,932,059 km (0.037 R)
• M19: 21,134,738 km (0.112 R)
• M20: 21,552,864 km (0.062 R)
• M21: 22,767,599 km (0.029 R)
• M22: 24,789,863 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.9

Radius: 11.1

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.85 AU - 6.73 AU

Year: 5912 Days

Day: 9.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,978,794 km

• M1: 143,614 km (0.084 R)
• M2: 613,351 km (0.061 R)
• M3: 1,337,704 km (0.084 R)
• M4: 2,681,841 km (0.058 R)
• M5: 4,324,276 km (0.119 R)
• M6: 5,012,576 km (0.093 R)
• M7: 6,346,241 km (0.04 R)
• M8: 8,360,726 km (0.066 R)
• M9: 10,333,323 km (0.045 R)
• M10: 10,769,700 km (0.063 R)
• M11: 11,218,344 km (0.084 R)
• M12: 16,125,304 km (0.09 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.2

Radius: 11.6

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 6.1 AU - 6.84 AU

Year: 6167 Days

Day: 10.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,978,794 km

• M1: 144,212 km (0.108 R)
• M2: 505,940 km (0.076 R)
• M3: 1,043,744 km (0.091 R)
• M4: 1,463,067 km (0.088 R)
• M5: 1,908,270 km (0.087 R)
• M6: 2,276,431 km (0.096 R)
• M7: 2,711,013 km (0.105 R)
• M8: 3,077,976 km (0.105 R)
• M9: 3,567,161 km (0.082 R)
• M10: 3,937,865 km (0.06 R)
• M11: 5,717,930 km (0.086 R)
• M12: 7,158,408 km (0.045 R)
• M13: 10,742,773 km (0.111 R)
• M14: 11,924,745 km (0.091 R)
• M15: 12,494,713 km (0.112 R)
• M16: 14,027,792 km (0.055 R)
• M17: 16,367,204 km (0.098 R)
• M18: 17,530,178 km (0.054 R)
• M19: 20,310,604 km (0.082 R)
• M20: 20,825,819 km (0.101 R)
• M21: 25,948,648 km (0.05 R)
• M22: 33,972,031 km (0.107 R)
• M23: 34,803,047 km (0.11 R)
• M24: 35,541,163 km (0.119 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.5

Radius: 15

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.34 AU - 10.8 AU

Year: 10236 Days

Day: 6.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,978,794 km

• M1: 186,848 km (0.117 R)
• M2: 1,084,435 km (0.108 R)
• M3: 1,695,692 km (0.097 R)
• M4: 3,029,955 km (0.081 R)
• M5: 3,907,945 km (0.111 R)
• M6: 5,014,969 km (0.104 R)
• M7: 7,454,761 km (0.056 R)
• M8: 9,252,927 km (0.103 R)
• M9: 10,387,179 km (0.116 R)
• M10: 10,932,612 km (0.118 R)
• M11: 15,026,508 km (0.072 R)
• M12: 17,797,808 km (0.118 R)
• M13: 18,422,080 km (0.097 R)
• M14: 20,383,009 km (0.079 R)
• M15: 22,299,807 km (0.103 R)
• M16: 25,790,374 km (0.109 R)
• M17: 26,590,423 km (0.108 R)
• M18: 27,613,673 km (0.071 R)
• M19: 30,286,837 km (0.113 R)
• M20: 31,857,016 km (0.081 R)
• M21: 34,553,518 km (0.075 R)
• M22: 38,553,615 km (0.028 R)
• M23: 40,665,040 km (0.11 R)
• M24: 41,340,474 km (0.116 R)
• M25: 46,573,108 km (0.095 R)
• M26: 47,760,018 km (0.038 R)
• M27: 53,998,399 km (0.077 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 19,563 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit