🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.55 AU - 0.57 AU

Year: 182 Days

Day: 41.9 Hours

Environment

Temp: 36 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.6 AU - 0.72 AU

Year: 232 Days

Day: 14.6 Hours

Environment

Temp: 11 °C

Axial Tilt: 5.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.37 AU - 1.47 AU

Year: 733 Days

Day: 41.6 Hours

Environment

Temp: -100 °C

Axial Tilt: 17 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.3 AU - 1.66 AU

Year: 780 Days

Day: 16.9 Hours

Environment

Temp: -92 °C

Axial Tilt: 79 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.3

Radius: 13.3

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 4.44 AU - 7.02 AU

Year: 5946 Days

Day: 12.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,658,573 km

• M1: 165,455 km (0.084 R)
• M2: 613,052 km (0.025 R)
• M3: 1,251,835 km (0.093 R)
• M4: 1,718,281 km (0.098 R)
• M5: 2,184,129 km (0.094 R)
• M6: 2,684,235 km (0.114 R)
• M7: 3,662,156 km (0.084 R)
• M8: 4,257,256 km (0.104 R)
• M9: 4,890,803 km (0.077 R)
• M10: 6,347,288 km (0.12 R)
• M11: 7,377,419 km (0.109 R)
• M12: 8,039,988 km (0.039 R)
• M13: 8,780,198 km (0.106 R)
• M14: 9,206,253 km (0.08 R)
• M15: 10,525,407 km (0.106 R)
• M16: 11,230,462 km (0.051 R)
• M17: 11,873,134 km (0.093 R)
• M18: 13,690,300 km (0.075 R)
• M19: 14,854,919 km (0.112 R)
• M20: 15,629,836 km (0.119 R)
• M21: 18,179,432 km (0.091 R)
• M22: 19,389,829 km (0.095 R)
• M23: 20,517,797 km (0.119 R)
• M24: 23,050,339 km (0.12 R)
• M25: 23,938,950 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.6

Radius: 10.9

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 8.07 AU - 10.63 AU

Year: 12393 Days

Day: 8.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,658,573 km

• M1: 136,433 km (0.072 R)
• M2: 568,771 km (0.06 R)
• M3: 1,800,560 km (0.083 R)
• M4: 4,853,853 km (0.046 R)
• M5: 6,568,992 km (0.105 R)
• M6: 7,844,164 km (0.085 R)
• M7: 9,131,604 km (0.095 R)
• M8: 14,355,112 km (0.094 R)
• M9: 16,059,780 km (0.083 R)
• M10: 20,030,706 km (0.068 R)
• M11: 20,527,521 km (0.112 R)
• M12: 28,372,134 km (0.058 R)
• M13: 30,063,786 km (0.106 R)
• M14: 31,709,812 km (0.1 R)
• M15: 39,541,111 km (0.067 R)
• M16: 50,071,903 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.7

Radius: 7.2

Gravity: 14.37 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 11.27 AU - 13.61 AU

Year: 19019 Days

Day: 19.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 75,658,573 km

• M1: 96,491 km (0.06 R)
• M2: 376,388 km (0.077 R)
• M3: 607,816 km (0.047 R)
• M4: 1,342,641 km (0.027 R)
• M5: 2,981,785 km (0.071 R)
• M6: 3,824,918 km (0.064 R)
• M7: 4,301,986 km (0.102 R)
• M8: 4,711,585 km (0.117 R)
• M9: 4,998,813 km (0.037 R)
• M10: 5,529,885 km (0.038 R)
• M11: 5,931,705 km (0.046 R)
• M12: 6,839,016 km (0.058 R)
• M13: 7,786,120 km (0.109 R)
• M14: 8,871,752 km (0.078 R)
• M15: 11,150,128 km (0.118 R)
• M16: 11,596,677 km (0.089 R)
• M17: 12,121,616 km (0.084 R)
• M18: 12,731,078 km (0.116 R)
• M19: 14,757,830 km (0.099 R)
• M20: 15,609,790 km (0.088 R)
• M21: 19,075,524 km (0.102 R)
• M22: 19,992,559 km (0.109 R)
• M23: 21,228,237 km (0.1 R)
• M24: 24,166,788 km (0.116 R)
• M25: 24,592,244 km (0.063 R)
• M26: 28,178,105 km (0.114 R)
• M27: 28,413,273 km (0.09 R)
• M28: 30,960,925 km (0.071 R)
• M29: 33,131,740 km (0.088 R)
• M30: 39,953,253 km (0.119 R)
• M31: 40,998,344 km (0.114 R)
• M32: 41,451,775 km (0.099 R)
• M33: 47,322,145 km (0.057 R)
• M34: 49,168,781 km (0.108 R)
• M35: 50,023,733 km (0.098 R)
• M36: 57,036,133 km (0.088 R)
• M37: 63,660,626 km (0.088 R)
• M38: 69,701,238 km (0.073 R)
• M39: 70,131,332 km (0.08 R)
• M40: 72,749,594 km (0.077 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 12,906 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit