🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239

Radius: 10.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.55 AU - 0.65 AU

Year: 310 Days

Day: 11.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,509,741 km

• M1: 129,402 km (0.105 R)
• M2: 539,001 km (0.103 R)
• M3: 1,167,013 km (0.057 R)
• M4: 1,523,056 km (0.064 R)
• M5: 1,985,762 km (0.11 R)
• M6: 2,470,010 km (0.11 R)
• M7: 2,847,147 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.3

Radius: 11.9

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.68 AU - 0.86 AU

Year: 451 Days

Day: 11.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,509,741 km

• M1: 147,952 km (0.102 R)
• M2: 589,864 km (0.092 R)
• M3: 988,692 km (0.117 R)
• M4: 1,981,424 km (0.101 R)
• M5: 2,430,965 km (0.117 R)
• M6: 3,097,125 km (0.086 R)
• M7: 3,550,705 km (0.081 R)
• M8: 3,996,657 km (0.032 R)
• M9: 4,466,095 km (0.063 R)
• M10: 4,957,225 km (0.081 R)
• M11: 5,452,244 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.2

Radius: 9.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.8 AU - 1.02 AU

Year: 579 Days

Day: 7.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 152.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,509,741 km

• M1: 121,922 km (0.069 R)
• M2: 430,991 km (0.073 R)
• M3: 773,421 km (0.098 R)
• M4: 1,608,028 km (0.118 R)
• M5: 2,052,632 km (0.074 R)
• M6: 2,369,032 km (0.064 R)
• M7: 2,976,698 km (0.047 R)
• M8: 3,322,868 km (0.077 R)
• M9: 3,729,176 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.6

Radius: 14.3

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.1 AU - 2.26 AU

Year: 2146 Days

Day: 7.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,509,741 km

• M1: 179,667 km (0.062 R)
• M2: 659,727 km (0.085 R)
• M3: 1,771,688 km (0.106 R)
• M4: 2,220,182 km (0.043 R)
• M5: 2,775,788 km (0.085 R)
• M6: 3,320,624 km (0.099 R)
• M7: 3,766,426 km (0.108 R)
• M8: 4,500,502 km (0.09 R)
• M9: 5,026,638 km (0.114 R)
• M10: 5,918,690 km (0.047 R)
• M11: 6,745,218 km (0.069 R)
• M12: 7,800,332 km (0.1 R)
• M13: 8,728,288 km (0.106 R)
• M14: 9,445,161 km (0.101 R)
• M15: 9,944,668 km (0.063 R)
• M16: 11,430,175 km (0.054 R)
• M17: 11,915,919 km (0.076 R)
• M18: 13,770,634 km (0.084 R)
• M19: 14,981,628 km (0.053 R)
• M20: 15,613,231 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.2

Radius: 14.3

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.52 AU - 3.52 AU

Year: 3500 Days

Day: 10.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,509,741 km

• M1: 180,864 km (0.112 R)
• M2: 790,026 km (0.078 R)
• M3: 1,491,640 km (0.05 R)
• M4: 2,144,635 km (0.071 R)
• M5: 3,204,536 km (0.12 R)
• M6: 3,814,447 km (0.1 R)
• M7: 4,933,139 km (0.071 R)
• M8: 5,569,678 km (0.114 R)
• M9: 6,096,263 km (0.049 R)
• M10: 6,684,781 km (0.102 R)
• M11: 8,408,597 km (0.092 R)
• M12: 9,103,778 km (0.115 R)
• M13: 10,569,838 km (0.041 R)
• M14: 12,058,187 km (0.099 R)
• M15: 13,355,649 km (0.105 R)
• M16: 13,824,040 km (0.116 R)
• M17: 15,346,198 km (0.108 R)
• M18: 16,016,846 km (0.085 R)
• M19: 19,848,496 km (0.053 R)
• M20: 20,831,803 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964

Radius: 13.5

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.49 AU - 4.59 AU

Year: 5415 Days

Day: 7.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,509,741 km

• M1: 167,849 km (0.07 R)
• M2: 622,926 km (0.044 R)
• M3: 1,126,921 km (0.117 R)
• M4: 1,613,712 km (0.06 R)
• M5: 2,132,218 km (0.038 R)
• M6: 2,875,271 km (0.117 R)
• M7: 3,404,399 km (0.075 R)
• M8: 6,990,858 km (0.039 R)
• M9: 8,756,263 km (0.086 R)
• M10: 10,332,875 km (0.066 R)
• M11: 12,194,620 km (0.107 R)
• M12: 12,773,115 km (0.116 R)
• M13: 18,558,513 km (0.083 R)
• M14: 23,962,138 km (0.04 R)
• M15: 25,716,772 km (0.099 R)
• M16: 26,757,075 km (0.116 R)
• M17: 32,986,929 km (0.118 R)
• M18: 34,735,578 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.9

Radius: 14.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.37 AU - 5.53 AU

Year: 6260 Days

Day: 13.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,509,741 km

• M1: 186,698 km (0.085 R)
• M2: 755,918 km (0.112 R)
• M3: 1,757,476 km (0.093 R)
• M4: 3,333,938 km (0.108 R)
• M5: 4,803,588 km (0.076 R)
• M6: 5,778,367 km (0.084 R)
• M7: 7,353,035 km (0.097 R)
• M8: 7,923,900 km (0.112 R)
• M9: 8,899,129 km (0.096 R)
• M10: 10,136,453 km (0.098 R)
• M11: 11,943,744 km (0.092 R)
• M12: 13,957,631 km (0.108 R)
• M13: 16,189,332 km (0.077 R)
• M14: 21,734,027 km (0.103 R)
• M15: 23,723,530 km (0.088 R)
• M16: 31,101,397 km (0.038 R)
• M17: 36,607,197 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.9

Radius: 6.9

Gravity: 10.81 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.31 AU - 6.39 AU

Year: 10671 Days

Day: 17.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 45,509,741 km

• M1: 85,869 km (0.086 R)
• M2: 392,545 km (0.086 R)
• M3: 865,872 km (0.11 R)
• M4: 1,193,641 km (0.074 R)
• M5: 2,050,089 km (0.09 R)
• M6: 3,285,768 km (0.093 R)
• M7: 4,061,732 km (0.068 R)
• M8: 4,953,933 km (0.063 R)
• M9: 5,267,939 km (0.1 R)
• M10: 6,290,291 km (0.118 R)
• M11: 6,509,751 km (0.109 R)
• M12: 7,809,308 km (0.1 R)
• M13: 9,510,086 km (0.12 R)
• M14: 11,552,396 km (0.106 R)
• M15: 13,747,596 km (0.058 R)
• M16: 15,599,468 km (0.055 R)
• M17: 16,481,347 km (0.107 R)
• M18: 20,183,595 km (0.044 R)
• M19: 20,742,642 km (0.086 R)
• M20: 22,737,680 km (0.028 R)
• M21: 23,430,168 km (0.048 R)
• M22: 23,693,460 km (0.096 R)
• M23: 25,406,954 km (0.112 R)
• M24: 25,964,805 km (0.061 R)
• M25: 28,080,418 km (0.119 R)
• M26: 28,877,326 km (0.099 R)
• M27: 32,869,794 km (0.101 R)
• M28: 36,622,905 km (0.117 R)
• M29: 37,334,542 km (0.117 R)
• M30: 39,154,251 km (0.065 R)
• M31: 43,232,289 km (0.055 R)
• M32: 44,966,876 km (0.073 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 16,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit