🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.53 AU - 0.55 AU

Year: 148 Days

Day: 37.8 Hours

Environment

Temp: 153 °C

Axial Tilt: 3.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,608,602 km

• M1: 35,155 km (0.053 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.84 AU - 1.36 AU

Year: 430 Days

Day: 39.6 Hours

Environment

Temp: 10 °C

Axial Tilt: 26.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 38,608,602 km

• M1: 77,342 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.87 AU - 3.55 AU

Year: 2144 Days

Day: 47.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,608,602 km

• M1: 1,407,866 km (0.063 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.77 AU - 4.03 AU

Year: 2871 Days

Day: 42.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 4.17 AU - 4.41 AU

Year: 3312 Days

Day: 22 Hours

Environment

Temp: -134 °C

Axial Tilt: 166.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,608,602 km

• M1: 338,989 km (0.118 R)

Asteroid Belt

Center: 5.87 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.8

Radius: 12.2

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6 AU - 8.88 AU

Year: 7565 Days

Day: 6 Hours

Environment

Temp: -171 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,608,602 km

• M1: 153,338 km (0.058 R)
• M2: 583,132 km (0.062 R)
• M3: 1,686,267 km (0.036 R)
• M4: 2,331,184 km (0.097 R)
• M5: 3,135,422 km (0.119 R)
• M6: 3,762,087 km (0.07 R)
• M7: 5,685,467 km (0.09 R)
• M8: 6,240,326 km (0.111 R)
• M9: 7,077,625 km (0.088 R)
• M10: 7,491,113 km (0.077 R)
• M11: 11,579,922 km (0.098 R)
• M12: 12,065,816 km (0.115 R)
• M13: 13,221,011 km (0.052 R)
• M14: 13,752,083 km (0.108 R)
• M15: 18,647,375 km (0.111 R)
• M16: 21,615,696 km (0.106 R)
• M17: 23,247,060 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.4

Radius: 9.7

Gravity: 9.46 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 8.08 AU - 13.4 AU

Year: 13121 Days

Day: 14.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 76.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 38,608,602 km

• M1: 120,576 km (0.025 R)
• M2: 523,293 km (0.045 R)
• M3: 882,029 km (0.112 R)
• M4: 1,220,419 km (0.086 R)
• M5: 1,844,243 km (0.115 R)
• M6: 3,015,893 km (0.087 R)
• M7: 3,861,121 km (0.061 R)
• M8: 4,958,272 km (0.103 R)
• M9: 6,015,031 km (0.057 R)
• M10: 7,437,557 km (0.113 R)
• M11: 8,131,841 km (0.113 R)
• M12: 9,436,634 km (0.07 R)
• M13: 10,418,445 km (0.037 R)
• M14: 11,287,459 km (0.044 R)
• M15: 11,709,175 km (0.101 R)
• M16: 13,368,365 km (0.097 R)
• M17: 15,618,915 km (0.112 R)
• M18: 17,305,332 km (0.108 R)
• M19: 18,689,262 km (0.107 R)
• M20: 19,623,201 km (0.115 R)
• M21: 20,233,561 km (0.119 R)
• M22: 20,946,395 km (0.051 R)
• M23: 24,764,880 km (0.059 R)
• M24: 25,580,488 km (0.092 R)
• M25: 28,025,665 km (0.055 R)
• M26: 29,701,760 km (0.111 R)
• M27: 39,231,742 km (0.063 R)
• M28: 39,783,310 km (0.103 R)
• M29: 42,473,827 km (0.059 R)
• M30: 58,476,760 km (0.117 R)
• M31: 60,470,152 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.8

Radius: 3.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 17.18 AU - 17.18 AU

Year: 26545 Days

Day: 15.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,608,602 km

• M1: 48,470 km (0.099 R)
• M2: 431,739 km (0.054 R)
• M3: 636,689 km (0.114 R)
• M4: 1,434,195 km (0.052 R)
• M5: 2,406,880 km (0.093 R)
• M6: 7,264,921 km (0.073 R)
• M7: 19,204,926 km (0.091 R)
• M8: 22,096,653 km (0.106 R)
• M9: 24,234,257 km (0.108 R)
• M10: 30,369,415 km (0.109 R)
• M11: 35,678,494 km (0.069 R)
• M12: 36,008,656 km (0.11 R)
• M13: 37,237,004 km (0.118 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: 352 - 12,802 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit