🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.6 AU - 0.66 AU

Year: 179 Days

Day: 24.2 Hours

Environment

Temp: 214 °C

Axial Tilt: 21 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 111,968,797 km

• M1: 166,353 km (0.056 R)
• M2: 252,222 km (0.09 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.64 AU - 0.7 AU

Year: 196 Days

Day: 15 Hours

Environment

Temp: 197 °C

Axial Tilt: 14.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.58 AU - 0.96 AU

Year: 242 Days

Day: 24.4 Hours

Environment

Temp: 176 °C

Axial Tilt: 27.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.75 AU - 1.23 AU

Year: 353 Days

Day: 22.6 Hours

Environment

Temp: 141 °C

Axial Tilt: 3.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 111,968,797 km

• M1: 39,195 km (0.114 R)
• M2: 68,217 km (0.067 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.49 AU - 1.79 AU

Year: 752 Days

Day: 44.6 Hours

Environment

Temp: -30 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 111,968,797 km

• M1: 604,824 km (0.056 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.58 AU - 3.3 AU

Year: 1805 Days

Day: 13.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 111,968,797 km

• M1: 34,557 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.6

Radius: 14.5

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.27 AU - 6.29 AU

Year: 4977 Days

Day: 9.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 111,968,797 km

• M1: 183,108 km (0.079 R)
• M2: 698,173 km (0.025 R)
• M3: 1,273,377 km (0.03 R)
• M4: 2,427,375 km (0.07 R)
• M5: 3,253,006 km (0.062 R)
• M6: 4,154,333 km (0.112 R)
• M7: 5,489,943 km (0.111 R)
• M8: 6,065,745 km (0.084 R)
• M9: 10,530,793 km (0.097 R)
• M10: 11,011,600 km (0.096 R)
• M11: 12,321,778 km (0.072 R)
• M12: 13,083,231 km (0.11 R)
• M13: 15,763,576 km (0.109 R)
• M14: 20,721,549 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.2

Radius: 10.2

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 8.12 AU - 9.78 AU

Year: 9590 Days

Day: 10.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 111,968,797 km

• M1: 130,749 km (0.049 R)
• M2: 672,293 km (0.115 R)
• M3: 1,043,894 km (0.103 R)
• M4: 1,675,347 km (0.065 R)
• M5: 2,226,465 km (0.099 R)
• M6: 2,935,858 km (0.096 R)
• M7: 3,411,430 km (0.117 R)
• M8: 4,013,860 km (0.117 R)
• M9: 5,034,118 km (0.116 R)
• M10: 5,914,950 km (0.053 R)
• M11: 6,253,341 km (0.098 R)
• M12: 6,932,066 km (0.111 R)
• M13: 10,147,672 km (0.059 R)
• M14: 10,486,512 km (0.082 R)
• M15: 11,341,015 km (0.117 R)
• M16: 12,350,351 km (0.051 R)
• M17: 12,848,812 km (0.111 R)
• M18: 14,123,984 km (0.111 R)
• M19: 14,854,021 km (0.059 R)
• M20: 16,588,758 km (0.116 R)
• M21: 17,887,866 km (0.102 R)
• M22: 18,670,263 km (0.116 R)
• M23: 19,033,337 km (0.073 R)
• M24: 24,279,435 km (0.05 R)
• M25: 26,041,698 km (0.048 R)
• M26: 31,325,345 km (0.092 R)
• M27: 34,163,067 km (0.037 R)
• M28: 35,923,236 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.1

Radius: 5.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 16.28 AU - 23.78 AU

Year: 32107 Days

Day: 21.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 111,968,797 km

• M1: 65,225 km (0.114 R)
• M2: 231,278 km (0.111 R)
• M3: 465,698 km (0.108 R)
• M4: 770,279 km (0.093 R)
• M5: 1,467,854 km (0.053 R)
• M6: 2,355,269 km (0.083 R)
• M7: 4,593,253 km (0.046 R)
• M8: 4,881,528 km (0.05 R)
• M9: 5,080,344 km (0.108 R)
• M10: 8,182,704 km (0.117 R)
• M11: 8,995,619 km (0.09 R)
• M12: 12,356,335 km (0.07 R)
• M13: 13,167,156 km (0.083 R)
• M14: 14,079,404 km (0.073 R)
• M15: 15,102,803 km (0.118 R)
• M16: 16,395,328 km (0.092 R)
• M17: 20,885,359 km (0.068 R)
• M18: 21,498,560 km (0.099 R)
• M19: 24,842,970 km (0.12 R)
• M20: 31,046,944 km (0.097 R)
• M21: 37,949,389 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 829.5

Radius: 4.1

Gravity: 49.35 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 15.73 AU - 24.61 AU

Year: 32444 Days

Day: 21.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 140.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 111,968,797 km

• M1: 51,013 km (0.052 R)
• M2: 200,012 km (0.108 R)
• M3: 492,476 km (0.051 R)
• M4: 1,226,553 km (0.069 R)
• M5: 2,587,594 km (0.104 R)
• M6: 3,072,740 km (0.099 R)
• M7: 3,450,026 km (0.048 R)
• M8: 3,582,570 km (0.081 R)
• M9: 4,296,301 km (0.096 R)
• M10: 6,487,611 km (0.041 R)
• M11: 7,596,430 km (0.082 R)
• M12: 8,224,891 km (0.104 R)
• M13: 9,715,185 km (0.098 R)
• M14: 10,046,843 km (0.119 R)
• M15: 12,583,574 km (0.051 R)
• M16: 15,878,468 km (0.094 R)
• M17: 21,106,315 km (0.119 R)
• M18: 21,774,718 km (0.094 R)
• M19: 23,984,279 km (0.037 R)
• M20: 25,205,147 km (0.054 R)
• M21: 25,579,291 km (0.087 R)
• M22: 26,084,034 km (0.045 R)
• M23: 36,181,292 km (0.111 R)
• M24: 36,339,567 km (0.075 R)
• M25: 39,267,347 km (0.102 R)
• M26: 40,617,467 km (0.086 R)
• M27: 43,410,310 km (0.06 R)
• M28: 45,956,615 km (0.085 R)
• M29: 51,145,118 km (0.113 R)
• M30: 54,396,927 km (0.119 R)
• M31: 56,710,608 km (0.084 R)
• M32: 61,758,938 km (0.115 R)
• M33: 76,841,096 km (0.058 R)
• M34: 85,786,899 km (0.096 R)
• M35: 89,493,336 km (0.079 R)
• M36: 100,936,975 km (0.11 R)
• M37: 103,464,281 km (0.097 R)
• M38: 104,422,754 km (0.063 R)
• M39: 105,387,062 km (0.103 R)
• M40: 107,007,656 km (0.115 R)

Kuiper Belt

Range: 30.6 - 46.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 11,376 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit