🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.1

Radius: 10.8

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.53 AU - 0.77 AU

Year: 362 Days

Day: 11.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 16,583,086 km

• M1: 134,339 km (0.071 R)
• M2: 470,934 km (0.034 R)
• M3: 838,646 km (0.069 R)
• M4: 1,360,593 km (0.079 R)
• M5: 1,774,530 km (0.109 R)
• M6: 2,674,511 km (0.065 R)
• M7: 3,431,326 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.5

Radius: 12.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.56 AU - 0.78 AU

Year: 379 Days

Day: 11.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 16,583,086 km

• M1: 162,314 km (0.113 R)
• M2: 624,721 km (0.109 R)
• M3: 1,038,060 km (0.117 R)
• M4: 2,437,697 km (0.07 R)
• M5: 3,239,991 km (0.114 R)
• M6: 3,698,059 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708

Radius: 10.3

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.83 AU - 1.17 AU

Year: 690 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,583,086 km

• M1: 128,056 km (0.096 R)
• M2: 454,778 km (0.096 R)
• M3: 1,568,234 km (0.111 R)
• M4: 2,291,989 km (0.04 R)
• M5: 3,000,933 km (0.095 R)
• M6: 3,380,762 km (0.103 R)
• M7: 4,521,596 km (0.098 R)
• M8: 5,074,958 km (0.075 R)
• M9: 5,413,797 km (0.104 R)
• M10: 5,960,129 km (0.077 R)
• M11: 6,605,344 km (0.095 R)
• M12: 7,567,857 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.4

Radius: 10.2

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.21 AU - 1.51 AU

Year: 1095 Days

Day: 10.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,583,086 km

• M1: 127,308 km (0.067 R)
• M2: 516,561 km (0.083 R)
• M3: 1,028,785 km (0.036 R)
• M4: 1,670,111 km (0.042 R)
• M5: 2,131,321 km (0.093 R)
• M6: 2,514,740 km (0.089 R)
• M7: 2,844,903 km (0.113 R)
• M8: 3,217,252 km (0.09 R)
• M9: 3,725,137 km (0.063 R)
• M10: 4,351,503 km (0.104 R)
• M11: 6,058,863 km (0.044 R)
• M12: 6,439,141 km (0.084 R)
• M13: 7,178,005 km (0.107 R)
• M14: 7,628,444 km (0.113 R)
• M15: 7,997,353 km (0.032 R)
• M16: 8,586,170 km (0.111 R)
• M17: 9,203,560 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.9

Radius: 8.9

Gravity: 11.68 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.56 AU - 1.94 AU

Year: 1598 Days

Day: 5.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 16,583,086 km

• M1: 111,002 km (0.059 R)
• M2: 389,254 km (0.113 R)
• M3: 677,529 km (0.037 R)
• M4: 1,079,947 km (0.074 R)
• M5: 1,802,505 km (0.069 R)
• M6: 2,673,763 km (0.105 R)
• M7: 3,086,354 km (0.116 R)
• M8: 3,678,761 km (0.034 R)
• M9: 4,002,341 km (0.045 R)
• M10: 5,221,414 km (0.03 R)
• M11: 5,844,340 km (0.111 R)
• M12: 6,724,275 km (0.119 R)
• M13: 7,127,441 km (0.116 R)
• M14: 7,405,095 km (0.046 R)
• M15: 8,011,864 km (0.094 R)
• M16: 8,903,916 km (0.093 R)
• M17: 9,456,680 km (0.101 R)
• M18: 11,067,550 km (0.119 R)
• M19: 11,440,647 km (0.028 R)
• M20: 13,182,864 km (0.104 R)
• M21: 14,117,401 km (0.075 R)
• M22: 15,049,845 km (0.067 R)
• M23: 15,600,814 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.3

Radius: 13.7

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.49 AU - 2.23 AU

Year: 1751 Days

Day: 8.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,583,086 km

• M1: 170,691 km (0.071 R)
• M2: 791,971 km (0.119 R)
• M3: 1,290,880 km (0.084 R)
• M4: 1,746,555 km (0.116 R)
• M5: 2,850,288 km (0.059 R)
• M6: 3,324,962 km (0.098 R)
• M7: 3,870,396 km (0.111 R)
• M8: 4,337,889 km (0.119 R)
• M9: 4,948,847 km (0.049 R)
• M10: 5,432,946 km (0.105 R)
• M11: 5,876,354 km (0.111 R)
• M12: 6,863,401 km (0.107 R)
• M13: 7,354,979 km (0.041 R)
• M14: 7,928,687 km (0.093 R)
• M15: 9,865,680 km (0.113 R)
• M16: 12,100,673 km (0.117 R)
• M17: 14,345,239 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.4

Radius: 10.7

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.43 AU - 2.95 AU

Year: 3045 Days

Day: 6.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,583,086 km

• M1: 134,937 km (0.059 R)
• M2: 579,841 km (0.117 R)
• M3: 936,183 km (0.083 R)
• M4: 1,277,566 km (0.086 R)
• M5: 2,062,805 km (0.097 R)
• M6: 2,766,364 km (0.119 R)
• M7: 3,345,756 km (0.111 R)
• M8: 4,040,489 km (0.107 R)
• M9: 4,910,999 km (0.117 R)
• M10: 5,785,698 km (0.091 R)
• M11: 7,342,413 km (0.094 R)
• M12: 7,871,092 km (0.092 R)
• M13: 9,320,396 km (0.114 R)
• M14: 10,176,096 km (0.081 R)
• M15: 11,630,636 km (0.064 R)
• M16: 11,967,680 km (0.062 R)
• M17: 13,259,757 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.2

Radius: 9.8

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.18 AU - 3.42 AU

Year: 3234 Days

Day: 12.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 16,583,086 km

• M1: 123,568 km (0.096 R)
• M2: 435,180 km (0.115 R)
• M3: 942,167 km (0.118 R)
• M4: 1,324,091 km (0.087 R)
• M5: 2,070,435 km (0.118 R)
• M6: 2,409,872 km (0.077 R)
• M7: 3,554,445 km (0.089 R)
• M8: 4,160,018 km (0.1 R)
• M9: 4,747,638 km (0.112 R)
• M10: 5,207,053 km (0.118 R)
• M11: 5,600,346 km (0.039 R)
• M12: 7,933,624 km (0.077 R)
• M13: 11,687,483 km (0.111 R)
• M14: 12,404,356 km (0.12 R)
• M15: 14,057,712 km (0.096 R)
• M16: 14,640,246 km (0.097 R)
• M17: 15,052,837 km (0.113 R)
• M18: 15,710,020 km (0.05 R)
• M19: 16,045,868 km (0.089 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 18,099 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit